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1860 lines
62 KiB
1860 lines
62 KiB
/*******************************************************************************
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*
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* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
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*
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* TITLE: MISCUTIL.CPP
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*
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* VERSION: 1.0
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*
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* AUTHOR: ShaunIv
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*
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* DATE: 5/28/1998
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*
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* DESCRIPTION: Various utility functions we use in more than one place
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*
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*******************************************************************************/
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#include "precomp.h"
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#pragma hdrstop
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#include <advpub.h> // For RegInstall and related data structures
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#include <windowsx.h> // For RegInstall and related data structures
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#include "wiaffmt.h"
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#include "shellext.h"
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namespace WiaUiUtil
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{
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LONG Align( LONG n , LONG m )
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{
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return(n % m) ? (((n/m)+1)*m) : (n);
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}
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/*
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* StringToLong: Convert a string to a long. ASCII Arabic numerals only
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*/
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LONG StringToLong( LPCTSTR pszStr )
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{
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LPTSTR pstr = (LPTSTR)pszStr;
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bool bNeg = (*pstr == TEXT('-'));
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if (bNeg)
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pstr++;
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LONG nTotal = 0;
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while (*pstr && *pstr >= TEXT('0') && *pstr <= TEXT('9'))
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{
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nTotal *= 10;
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nTotal += *pstr - TEXT('0');
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++pstr;
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}
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return(bNeg ? -nTotal : nTotal);
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}
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SIZE MapDialogSize( HWND hwnd, const SIZE &size )
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{
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RECT rcTmp;
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rcTmp.left = rcTmp.top = 0;
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rcTmp.right = size.cx;
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rcTmp.bottom = size.cy;
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MapDialogRect( hwnd, &rcTmp );
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SIZE sizeTmp;
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sizeTmp.cx = rcTmp.right;
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sizeTmp.cy = rcTmp.bottom;
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return (sizeTmp);
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}
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/*******************************************************************************
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*
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* GetBmiSize
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*
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* DESCRIPTION:
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* Should never get biCompression == BI_RLE.
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*
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* PARAMETERS:
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*
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*******************************************************************************/
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LONG GetBmiSize(PBITMAPINFO pbmi)
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{
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WIA_PUSH_FUNCTION((TEXT("WiaUiUtil::GetBmiSize(0x%p)"), pbmi ));
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// determine the size of bitmapinfo
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LONG lSize = pbmi->bmiHeader.biSize;
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// no color table cases
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if (
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(pbmi->bmiHeader.biBitCount == 24) ||
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((pbmi->bmiHeader.biBitCount == 32) &&
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(pbmi->bmiHeader.biCompression == BI_RGB)))
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{
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// no colors unless stated
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lSize += sizeof(RGBQUAD) * pbmi->bmiHeader.biClrUsed;
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return(lSize);
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}
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// bitfields cases
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if (((pbmi->bmiHeader.biBitCount == 32) &&
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(pbmi->bmiHeader.biCompression == BI_BITFIELDS)) ||
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(pbmi->bmiHeader.biBitCount == 16))
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{
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lSize += 3 * sizeof(RGBQUAD);
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return(lSize);
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}
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// palette cases
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if (pbmi->bmiHeader.biBitCount == 1)
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{
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LONG lPal = pbmi->bmiHeader.biClrUsed;
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if ((lPal == 0) || (lPal > 2))
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{
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lPal = 2;
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}
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lSize += lPal * sizeof(RGBQUAD);
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return(lSize);
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}
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// palette cases
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if (pbmi->bmiHeader.biBitCount == 4)
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{
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LONG lPal = pbmi->bmiHeader.biClrUsed;
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if ((lPal == 0) || (lPal > 16))
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{
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lPal = 16;
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}
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lSize += lPal * sizeof(RGBQUAD);
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return(lSize);
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}
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// palette cases
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if (pbmi->bmiHeader.biBitCount == 8)
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{
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LONG lPal = pbmi->bmiHeader.biClrUsed;
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if ((lPal == 0) || (lPal > 256))
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{
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lPal = 256;
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}
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lSize += lPal * sizeof(RGBQUAD);
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return(lSize);
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}
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// error
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return(0);
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}
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// Simple wrapper for MsgWaitForMultipleObjects
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bool MsgWaitForSingleObject( HANDLE hHandle, DWORD dwMilliseconds )
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{
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bool bEventOccurred = false;
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const int nCount = 1;
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while (true)
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{
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DWORD dwRes = MsgWaitForMultipleObjects(nCount,&hHandle,FALSE,dwMilliseconds,QS_ALLINPUT|QS_ALLPOSTMESSAGE);
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if (WAIT_OBJECT_0==dwRes)
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{
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// The handle was signalled, so we can break out of our loop, returning true
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bEventOccurred = true;
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break;
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}
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else if (WAIT_OBJECT_0+nCount==dwRes)
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{
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// pull all of the messages out of the queue and process them
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MSG msg;
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while (PeekMessage( &msg, 0, 0, 0, PM_REMOVE ))
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{
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if (msg.message == WM_QUIT)
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break;
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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else
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{
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// The handle either timed out, or the mutex was abandoned, so we can break out of our loop, returning false
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break;
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}
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}
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return bEventOccurred;
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}
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void CenterWindow( HWND hWnd, HWND hWndParent )
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{
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if (IsWindow(hWnd))
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{
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if (!hWndParent)
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{
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//
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// If the window to be centered on is NULL, use the desktop window
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//
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hWndParent = GetDesktopWindow();
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}
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else
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{
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//
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// If the window to be centered on is minimized, use the desktop window
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//
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DWORD dwStyle = GetWindowLong(hWndParent, GWL_STYLE);
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if (dwStyle & WS_MINIMIZE)
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{
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hWndParent = GetDesktopWindow();
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}
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}
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//
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// Get the window rects
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//
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RECT rcParent, rcCurrent;
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GetWindowRect( hWndParent, &rcParent );
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GetWindowRect( hWnd, &rcCurrent );
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//
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// Get the desired coordinates for the upper-left hand corner
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//
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RECT rcFinal;
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rcFinal.left = rcParent.left + (RectWidth(rcParent) - RectWidth(rcCurrent))/2;
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rcFinal.top = rcParent.top + (RectHeight(rcParent) - RectHeight(rcCurrent))/2;
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rcFinal.right = rcFinal.left + RectWidth(rcCurrent);
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rcFinal.bottom = rcFinal.top + RectHeight(rcCurrent);
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//
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// Make sure we're not off the screen
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//
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HMONITOR hMonitor = MonitorFromRect( &rcFinal, MONITOR_DEFAULTTONEAREST );
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if (hMonitor)
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{
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MONITORINFO MonitorInfo = {0};
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MonitorInfo.cbSize = sizeof(MonitorInfo);
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//
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// Get the screen coordinates of this monitor
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//
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if (GetMonitorInfo(hMonitor, &MonitorInfo))
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{
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//
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// Ensure the window is in the working area's region
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//
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rcFinal.left = Max<int>(MonitorInfo.rcWork.left, Min<int>( MonitorInfo.rcWork.right - RectWidth(rcCurrent), rcFinal.left ));
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rcFinal.top = Max<int>(MonitorInfo.rcWork.top, Min<int>( MonitorInfo.rcWork.bottom - RectHeight(rcCurrent), rcFinal.top ));
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}
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}
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// Move it
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SetWindowPos( hWnd, NULL, rcFinal.left, rcFinal.top, 0, 0, SWP_NOSIZE|SWP_NOACTIVATE|SWP_NOZORDER );
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}
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}
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// Flip an image horizontally
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bool FlipImage( PBYTE pBits, LONG nWidth, LONG nHeight, LONG nBitDepth )
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{
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bool bResult = false;
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if (pBits && nWidth>=0 && nHeight>=0 && nBitDepth>=0)
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{
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LONG nLineWidthInBytes = WiaUiUtil::Align(nWidth*nBitDepth,sizeof(DWORD)*8)/8;
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PBYTE pTempLine = new BYTE[nLineWidthInBytes];
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if (pTempLine)
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{
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for (int i=0;i<nHeight/2;i++)
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{
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PBYTE pSrc = pBits + (i * nLineWidthInBytes);
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PBYTE pDst = pBits + ((nHeight-i-1) * nLineWidthInBytes);
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CopyMemory( pTempLine, pSrc, nLineWidthInBytes );
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CopyMemory( pSrc, pDst, nLineWidthInBytes );
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CopyMemory( pDst, pTempLine, nLineWidthInBytes );
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}
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bResult = true;
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}
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delete[] pTempLine;
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}
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return bResult;
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}
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HRESULT InstallInfFromResource( HINSTANCE hInstance, LPCSTR pszSectionName )
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{
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HRESULT hr;
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HINSTANCE hInstAdvPackDll = LoadLibrary(TEXT("ADVPACK.DLL"));
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if (hInstAdvPackDll)
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{
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REGINSTALL pfnRegInstall = reinterpret_cast<REGINSTALL>(GetProcAddress( hInstAdvPackDll, "RegInstall" ));
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if (pfnRegInstall)
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{
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#if defined(WINNT)
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STRENTRY astrEntry[] =
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{
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{ "25", "%SystemRoot%" },
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{ "11", "%SystemRoot%\\system32" }
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};
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STRTABLE strTable = { sizeof(astrEntry)/sizeof(astrEntry[0]), astrEntry };
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hr = pfnRegInstall(hInstance, pszSectionName, &strTable);
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#else
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hr = pfnRegInstall(hInstance, pszSectionName, NULL);
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#endif
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} else hr = HRESULT_FROM_WIN32(GetLastError());
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FreeLibrary(hInstAdvPackDll);
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} else hr = HRESULT_FROM_WIN32(GetLastError());
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return hr;
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}
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/******************************************************************************
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WriteDIBToFile
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Writes a DIB to a file.
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******************************************************************************/
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HRESULT
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WriteDIBToFile( HBITMAP hDib, HANDLE hFile )
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{
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if (!hDib)
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{
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return E_INVALIDARG;
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}
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// Make sure this is a valid DIB and get this useful info.
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DIBSECTION ds;
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if (!GetObject( hDib, sizeof(DIBSECTION), &ds ))
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{
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return E_INVALIDARG;
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}
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// We only deal with DIBs
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if (ds.dsBm.bmPlanes != 1)
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{
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return E_INVALIDARG;
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}
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// Calculate some color table sizes
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int nColors = ds.dsBmih.biBitCount <= 8 ? 1 << ds.dsBmih.biBitCount : 0;
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int nBitfields = ds.dsBmih.biCompression == BI_BITFIELDS ? 3 : 0;
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// Calculate the data size
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int nImageDataSize = ds.dsBmih.biSizeImage ? ds.dsBmih.biSizeImage : ds.dsBm.bmWidthBytes * ds.dsBm.bmHeight;
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// Get the color table (if needed)
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RGBQUAD rgbqaColorTable[256] = {0};
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if (nColors)
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{
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HDC hDC = CreateCompatibleDC(NULL);
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if (hDC)
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{
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HBITMAP hOldBitmap = reinterpret_cast<HBITMAP>(SelectObject(hDC,hDib));
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GetDIBColorTable( hDC, 0, nColors, rgbqaColorTable );
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SelectObject(hDC,hOldBitmap);
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DeleteDC( hDC );
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}
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}
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// Create the file header
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BITMAPFILEHEADER bmfh;
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bmfh.bfType = 'MB';
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bmfh.bfSize = 0;
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bmfh.bfReserved1 = 0;
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bmfh.bfReserved2 = 0;
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bmfh.bfOffBits = sizeof(bmfh) + sizeof(ds.dsBmih) + nBitfields*sizeof(DWORD) + nColors*sizeof(RGBQUAD);
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// Start writing! Note that we write out the bitfields and the color table. Only one,
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// at most, will actually result in data being written
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DWORD dwBytesWritten;
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if (!WriteFile( hFile, &bmfh, sizeof(bmfh), &dwBytesWritten, NULL ))
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return HRESULT_FROM_WIN32(GetLastError());
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if (!WriteFile( hFile, &ds.dsBmih, sizeof(ds.dsBmih), &dwBytesWritten, NULL ))
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return HRESULT_FROM_WIN32(GetLastError());
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if (!WriteFile( hFile, &ds.dsBitfields, nBitfields*sizeof(DWORD), &dwBytesWritten, NULL ))
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return HRESULT_FROM_WIN32(GetLastError());
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if (!WriteFile( hFile, rgbqaColorTable, nColors*sizeof(RGBQUAD), &dwBytesWritten, NULL ))
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return HRESULT_FROM_WIN32(GetLastError());
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if (!WriteFile( hFile, ds.dsBm.bmBits, nImageDataSize, &dwBytesWritten, NULL ))
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return HRESULT_FROM_WIN32(GetLastError());
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return S_OK;
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}
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HFONT ChangeFontFromWindow( HWND hWnd, int nPointSizeDelta )
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{
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HFONT hFontResult = NULL;
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//
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// Get the window's font
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//
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HFONT hFont = GetFontFromWindow(hWnd);
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if (hFont)
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{
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LOGFONT LogFont = {0};
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if (GetObject( hFont, sizeof(LogFont), &LogFont ))
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{
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HDC hDC = GetDC(hWnd);
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if (hDC)
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{
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HFONT hOldFont = SelectFont(hDC,hFont);
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TEXTMETRIC TextMetric = {0};
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if (GetTextMetrics( hDC, &TextMetric ))
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{
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//
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// Get the current font's point size
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//
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int nPointSize = MulDiv( TextMetric.tmHeight-TextMetric.tmInternalLeading, 72, GetDeviceCaps(hDC, LOGPIXELSY) ) + nPointSizeDelta;
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//
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// Calculate the height of the new font
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//
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LogFont.lfHeight = -MulDiv(nPointSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
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//
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// Create the font
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//
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hFontResult = CreateFontIndirect( &LogFont );
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}
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if (hOldFont)
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{
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SelectFont( hDC, hOldFont );
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}
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ReleaseDC( hWnd, hDC );
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}
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}
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}
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return hFontResult;
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}
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HFONT GetFontFromWindow( HWND hWnd )
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{
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//
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// Get the window's font
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//
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HFONT hFontResult = reinterpret_cast<HFONT>(SendMessage(hWnd,WM_GETFONT,0,0));
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if (!hFontResult)
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{
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hFontResult = reinterpret_cast<HFONT>(GetStockObject(DEFAULT_GUI_FONT));
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}
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return hFontResult;
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}
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HFONT CreateFontWithPointSizeFromWindow( HWND hWnd, int nPointSize, bool bBold, bool bItalic )
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{
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HFONT hFontResult = NULL;
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HFONT hFont = GetFontFromWindow(hWnd);
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if (hFont)
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{
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LOGFONT LogFont = {0};
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if (GetObject( hFont, sizeof(LogFont), &LogFont ))
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{
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HDC hDC = GetDC(NULL);
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if (hDC)
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{
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if (nPointSize)
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{
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LogFont.lfHeight = -MulDiv(nPointSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
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}
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if (bBold)
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{
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LogFont.lfWeight = FW_BOLD;
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}
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if (bItalic)
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{
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LogFont.lfItalic = TRUE;
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}
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hFontResult = CreateFontIndirect( &LogFont );
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ReleaseDC( NULL, hDC );
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}
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}
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}
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return hFontResult;
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}
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SIZE GetTextExtentFromWindow( HWND hFontWnd, LPCTSTR pszString )
|
|
{
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SIZE sizeResult = {0,0};
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HDC hDC = GetDC( hFontWnd );
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if (hDC)
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{
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HFONT hFont = GetFontFromWindow(hFontWnd);
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if (hFont)
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{
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HFONT hOldFont = SelectFont( hDC, hFont );
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SIZE sizeExtent = {0,0};
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if (GetTextExtentPoint32( hDC, pszString, lstrlen(pszString), &sizeExtent ))
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{
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sizeResult = sizeExtent;
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}
|
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//
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// Restore the DC
|
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//
|
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if (hOldFont)
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{
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SelectFont( hDC, hOldFont );
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}
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}
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ReleaseDC( hFontWnd, hDC );
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}
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return sizeResult;
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}
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|
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CSimpleString TruncateTextToFitInRect( HWND hFontWnd, LPCTSTR pszString, RECT rectTarget, UINT nDrawTextFormat )
|
|
{
|
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WIA_PUSH_FUNCTION((TEXT("WiaUiUtil::TruncateTextToFitInRect( 0x%p, %s, (%d,%d,%d,%d), 0x%08X"), hFontWnd, pszString, rectTarget.left, rectTarget.top, rectTarget.right, rectTarget.bottom, nDrawTextFormat ));
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CSimpleString strResult = pszString;
|
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|
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//
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|
// Make sure we have valid parameters
|
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//
|
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if (IsWindow(hFontWnd) && hFontWnd && pszString && lstrlen(pszString))
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{
|
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//
|
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// Make a copy of the string. If it fails, we will just return the original string.
|
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//
|
|
LPTSTR pszTemp = new TCHAR[lstrlen(pszString)+1];
|
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if (pszTemp)
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{
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lstrcpy( pszTemp, pszString );
|
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|
|
//
|
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// Get a client DC for the window
|
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//
|
|
HDC hDC = GetDC( hFontWnd );
|
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if (hDC)
|
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{
|
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//
|
|
// Create a memory DC
|
|
//
|
|
HDC hMemDC = CreateCompatibleDC( hDC );
|
|
if (hMemDC)
|
|
{
|
|
//
|
|
// Get the font the window is using and select it into our client dc
|
|
//
|
|
HFONT hFont = GetFontFromWindow(hFontWnd);
|
|
if (hFont)
|
|
{
|
|
//
|
|
// Select the font
|
|
//
|
|
HFONT hOldFont = SelectFont( hMemDC, hFont );
|
|
|
|
//
|
|
// Modify the string using DrawText
|
|
//
|
|
if (DrawText( hMemDC, pszTemp, lstrlen(pszTemp), &rectTarget, nDrawTextFormat|DT_MODIFYSTRING|DT_SINGLELINE ))
|
|
{
|
|
strResult = pszTemp;
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("DrawText failed")));
|
|
}
|
|
//
|
|
// Restore the DC
|
|
//
|
|
if (hOldFont)
|
|
{
|
|
SelectFont( hMemDC, hOldFont );
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
// Clean up the memory DC
|
|
//
|
|
DeleteDC( hMemDC );
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Unable to create the compatible DC")));
|
|
}
|
|
|
|
//
|
|
// Release the DC
|
|
//
|
|
ReleaseDC( hFontWnd, hDC );
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Unable to get the DC")));
|
|
}
|
|
|
|
//
|
|
// Clean up our temp buffer
|
|
//
|
|
delete[] pszTemp;
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Unable to allocate the temp buffer")));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Argument validation failed")));
|
|
}
|
|
return strResult;
|
|
}
|
|
|
|
|
|
CSimpleString FitTextInStaticWithEllipsis( LPCTSTR pszString, HWND hWndStatic, UINT nDrawTextStyle )
|
|
{
|
|
//
|
|
// Make sure we have valid parameters
|
|
//
|
|
if (!hWndStatic || !pszString || !IsWindow(hWndStatic))
|
|
{
|
|
return pszString;
|
|
}
|
|
|
|
//
|
|
// Hide prefix characters?
|
|
//
|
|
if (GetWindowLong( hWndStatic, GWL_STYLE ) & SS_NOPREFIX)
|
|
{
|
|
nDrawTextStyle |= DT_NOPREFIX;
|
|
}
|
|
|
|
//
|
|
// How big is the area we are trying to fit this in?
|
|
//
|
|
RECT rcClient;
|
|
GetClientRect( hWndStatic, &rcClient );
|
|
|
|
//
|
|
// Calculate the result and return it
|
|
//
|
|
return TruncateTextToFitInRect( hWndStatic, pszString, rcClient, nDrawTextStyle );
|
|
}
|
|
|
|
//
|
|
// Get the size of an icon
|
|
//
|
|
bool GetIconSize( HICON hIcon, SIZE &sizeIcon )
|
|
{
|
|
//
|
|
// Assume failure
|
|
//
|
|
bool bSuccess = false;
|
|
|
|
//
|
|
// Get the icon information
|
|
//
|
|
ICONINFO IconInfo = {0};
|
|
if (GetIconInfo( hIcon, &IconInfo ))
|
|
{
|
|
//
|
|
// Get one of the bitmaps
|
|
//
|
|
BITMAP bm;
|
|
if (GetObject( IconInfo.hbmColor, sizeof(bm), &bm ))
|
|
{
|
|
//
|
|
// Save the size of the icon
|
|
//
|
|
sizeIcon.cx = bm.bmWidth;
|
|
sizeIcon.cy = bm.bmHeight;
|
|
|
|
//
|
|
// Everything worked
|
|
//
|
|
bSuccess = true;
|
|
}
|
|
|
|
//
|
|
// Free the bitmaps
|
|
//
|
|
DeleteObject(IconInfo.hbmMask);
|
|
DeleteObject(IconInfo.hbmColor);
|
|
}
|
|
else
|
|
{
|
|
WIA_PRINTHRESULT((HRESULT_FROM_WIN32(GetLastError()),TEXT("GetIconInfo failed")));
|
|
}
|
|
|
|
return bSuccess;
|
|
}
|
|
|
|
HBITMAP CreateIconThumbnail( HWND hWnd, int nWidth, int nHeight, HICON hIcon, LPCTSTR pszText )
|
|
{
|
|
WIA_PUSH_FUNCTION((TEXT("CreateIconThumbnail( hWnd: 0x%p, nWidth: %d, nHeight: %d, hIcon: 0x%p, pszText: \"%s\" )"), hWnd, nWidth, nHeight, hIcon, pszText ? pszText : TEXT("") ));
|
|
|
|
//
|
|
// Initialize return value to NULL
|
|
//
|
|
HBITMAP hBmp = NULL;
|
|
|
|
//
|
|
// This will be set to true if all steps succeed.
|
|
//
|
|
bool bSuccess = false;
|
|
|
|
//
|
|
// The minimum whitespace around the icon and the text border
|
|
//
|
|
const int nIconBorder = 2;
|
|
|
|
//
|
|
// Get the DC to the window
|
|
//
|
|
HDC hDC = GetDC(hWnd);
|
|
if (hDC)
|
|
{
|
|
//
|
|
// Get a halftone palette
|
|
//
|
|
HPALETTE hHalftonePalette = CreateHalftonePalette(hDC);
|
|
if (hHalftonePalette)
|
|
{
|
|
//
|
|
// Initialize the bitmap information
|
|
//
|
|
BITMAPINFO BitmapInfo = {0};
|
|
BitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
|
|
BitmapInfo.bmiHeader.biWidth = nWidth;
|
|
BitmapInfo.bmiHeader.biHeight = nHeight;
|
|
BitmapInfo.bmiHeader.biPlanes = 1;
|
|
BitmapInfo.bmiHeader.biBitCount = 24;
|
|
BitmapInfo.bmiHeader.biCompression = BI_RGB;
|
|
|
|
//
|
|
// Create the DIB section
|
|
//
|
|
PBYTE pBitmapData = NULL;
|
|
hBmp = CreateDIBSection( hDC, &BitmapInfo, DIB_RGB_COLORS, (LPVOID*)&pBitmapData, NULL, 0 );
|
|
if (hBmp)
|
|
{
|
|
//
|
|
// Create the source dc
|
|
//
|
|
HDC hMemoryDC = CreateCompatibleDC( hDC );
|
|
if (hMemoryDC)
|
|
{
|
|
//
|
|
// Set up the palette
|
|
//
|
|
HPALETTE hOldPalette = SelectPalette( hMemoryDC, hHalftonePalette , 0 );
|
|
RealizePalette( hMemoryDC );
|
|
SetBrushOrgEx( hMemoryDC, 0,0, NULL );
|
|
|
|
//
|
|
// Set up the DC
|
|
//
|
|
int nOldBkMode = SetBkMode( hMemoryDC, TRANSPARENT );
|
|
COLORREF crOldTextColor = SetTextColor( hMemoryDC, GetSysColor(COLOR_WINDOWTEXT) );
|
|
DWORD dwOldLayout = SetLayout( hMemoryDC, LAYOUT_BITMAPORIENTATIONPRESERVED );
|
|
|
|
//
|
|
// Select the bitmap into the memory DC
|
|
//
|
|
HBITMAP hOldBitmap = reinterpret_cast<HBITMAP>(SelectObject( hMemoryDC, hBmp ));
|
|
|
|
//
|
|
// Get the font to use
|
|
//
|
|
HFONT hFont = GetFontFromWindow(hWnd);
|
|
|
|
//
|
|
// Select the font
|
|
//
|
|
HFONT hOldFont = reinterpret_cast<HFONT>(SelectObject( hMemoryDC, hFont ) );
|
|
|
|
//
|
|
// Ensure we have a valid icon
|
|
//
|
|
if (hIcon)
|
|
{
|
|
//
|
|
// Try to get the size of the icon
|
|
//
|
|
SIZE sizeIcon;
|
|
if (GetIconSize( hIcon, sizeIcon ))
|
|
{
|
|
//
|
|
// Fill the bitmap with the window color
|
|
//
|
|
RECT rc = { 0, 0, nWidth, nHeight };
|
|
FillRect( hMemoryDC, &rc, GetSysColorBrush( COLOR_WINDOW ) );
|
|
|
|
//
|
|
// Get the text height for one line of text
|
|
//
|
|
SIZE sizeText = {0};
|
|
if (pszText)
|
|
{
|
|
GetTextExtentPoint32( hMemoryDC, TEXT("X"), 1, &sizeText );
|
|
}
|
|
|
|
//
|
|
// Center the icon + 1 line of text + margin in the thumbnail
|
|
// We are assuming this bitmap can actually hold an icon + text
|
|
//
|
|
int nIconTop = rc.top + (RectHeight(rc) - ( sizeIcon.cy + sizeText.cy + nIconBorder )) / 2;
|
|
|
|
//
|
|
// Draw the icon
|
|
//
|
|
DrawIconEx( hMemoryDC, (nWidth - sizeIcon.cx)/2, nIconTop, hIcon, sizeIcon.cx, sizeIcon.cy, 0, NULL, DI_NORMAL );
|
|
|
|
//
|
|
// Only compute text things if there's text to draw
|
|
//
|
|
if (pszText && *pszText)
|
|
{
|
|
//
|
|
// Decrease the rectangle's width by the icon border
|
|
//
|
|
InflateRect( &rc, -nIconBorder, 0 );
|
|
|
|
//
|
|
// Set the top of the text to the bottom of icon + the icon border
|
|
//
|
|
rc.top = nIconTop + sizeIcon.cy + nIconBorder;
|
|
|
|
//
|
|
// Draw the text
|
|
//
|
|
DrawTextEx( hMemoryDC, const_cast<LPTSTR>(pszText), -1, &rc, DT_CENTER|DT_END_ELLIPSIS|DT_NOPREFIX|DT_WORDBREAK, NULL );
|
|
}
|
|
|
|
//
|
|
// Everything worked OK
|
|
//
|
|
bSuccess = true;
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Couldn't get an icon size")));
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Didn't have a valid icon")));
|
|
}
|
|
|
|
//
|
|
// Restore the dc's state
|
|
//
|
|
SelectObject( hMemoryDC, hOldFont );
|
|
SelectObject( hMemoryDC, hOldBitmap );
|
|
SelectPalette( hMemoryDC, hOldPalette , 0 );
|
|
SetBkMode( hMemoryDC, nOldBkMode );
|
|
SetTextColor( hMemoryDC, crOldTextColor );
|
|
SetLayout( hMemoryDC, dwOldLayout );
|
|
|
|
//
|
|
// Delete the compatible DC
|
|
//
|
|
DeleteDC( hMemoryDC );
|
|
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Unable to create a memory DC")));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Unable to create a DIB section")));
|
|
}
|
|
|
|
//
|
|
// Delete the halftone palette
|
|
//
|
|
if (hHalftonePalette)
|
|
{
|
|
DeleteObject( hHalftonePalette );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Unable to get a halftone palette")));
|
|
}
|
|
|
|
//
|
|
// Release the client DC
|
|
//
|
|
ReleaseDC( hWnd, hDC );
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("Unable to get a DC")));
|
|
}
|
|
|
|
//
|
|
// Clean up in the event of failure
|
|
//
|
|
if (!bSuccess)
|
|
{
|
|
if (hBmp)
|
|
{
|
|
DeleteObject(hBmp);
|
|
hBmp = NULL;
|
|
}
|
|
}
|
|
return hBmp;
|
|
}
|
|
//
|
|
// Create a bitmap with an icon and optional text
|
|
//
|
|
HBITMAP CreateIconThumbnail( HWND hWnd, int nWidth, int nHeight, HINSTANCE hIconInstance, const CResId &resIconId, LPCTSTR pszText )
|
|
{
|
|
//
|
|
// Assume failure
|
|
//
|
|
HBITMAP hBmp = NULL;
|
|
|
|
//
|
|
// Load the specified icon
|
|
//
|
|
HICON hIcon = (HICON)LoadImage( hIconInstance, resIconId.ResourceName(), IMAGE_ICON, 0, 0, LR_DEFAULTCOLOR );
|
|
if (hIcon)
|
|
{
|
|
//
|
|
// Create the thumbnail
|
|
//
|
|
hBmp = CreateIconThumbnail( hWnd, nWidth, nHeight, hIcon, pszText );
|
|
|
|
//
|
|
// Free the icon (even though MSDN doesn't mention this, it will result in a leak if you don't)
|
|
//
|
|
DestroyIcon(hIcon);
|
|
}
|
|
|
|
return hBmp;
|
|
}
|
|
|
|
HRESULT SaveWiaItemAudio( IWiaItem *pWiaItem, LPCTSTR pszBaseFilename, CSimpleString &strAudioFilename )
|
|
{
|
|
//
|
|
// Check the arguments
|
|
//
|
|
if (!pWiaItem || !pszBaseFilename || !lstrlen(pszBaseFilename))
|
|
{
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
//
|
|
// Get the audio data property, if present
|
|
//
|
|
CComPtr<IWiaPropertyStorage> pWiaPropertyStorage;
|
|
HRESULT hr = pWiaItem->QueryInterface( IID_IWiaPropertyStorage, (void**)(&pWiaPropertyStorage) );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
PROPVARIANT PropVar[3] = {0};
|
|
PROPSPEC PropSpec[3] = {0};
|
|
|
|
PropSpec[0].ulKind = PRSPEC_PROPID;
|
|
PropSpec[0].propid = WIA_IPC_AUDIO_DATA;
|
|
|
|
PropSpec[1].ulKind = PRSPEC_PROPID;
|
|
PropSpec[1].propid = WIA_IPC_AUDIO_AVAILABLE;
|
|
|
|
PropSpec[2].ulKind = PRSPEC_PROPID;
|
|
PropSpec[2].propid = WIA_IPC_AUDIO_DATA_FORMAT;
|
|
|
|
hr = pWiaPropertyStorage->ReadMultiple( ARRAYSIZE(PropSpec), PropSpec, PropVar );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
if (PropVar[1].lVal && PropVar[0].caub.cElems)
|
|
{
|
|
TCHAR szFile[MAX_PATH + 4] = {0};
|
|
lstrcpyn( szFile, pszBaseFilename, ARRAYSIZE(szFile) );
|
|
|
|
//
|
|
// Figure out where the extension should go.
|
|
//
|
|
LPTSTR pszExtensionPoint = PathFindExtension(szFile);
|
|
|
|
//
|
|
// Replace the extension. If the item specifies the clsid, use it. Otherwise assume WAV
|
|
//
|
|
if (PropVar[2].vt == VT_CLSID && PropVar[2].puuid)
|
|
{
|
|
_sntprintf( pszExtensionPoint, ARRAYSIZE(szFile) - (pszExtensionPoint - szFile) - 1, TEXT(".%s"), CWiaFileFormat::GetExtension(*PropVar[2].puuid).String() );
|
|
}
|
|
else
|
|
{
|
|
lstrcpyn( pszExtensionPoint, TEXT(".wav"), static_cast<int>( ARRAYSIZE(szFile) - (pszExtensionPoint - szFile) ) );
|
|
}
|
|
|
|
//
|
|
// Save the filename for the caller
|
|
//
|
|
strAudioFilename = szFile;
|
|
|
|
//
|
|
// Open the file and save the data to the file
|
|
//
|
|
HANDLE hFile = CreateFile( szFile, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
|
|
if (INVALID_HANDLE_VALUE != hFile)
|
|
{
|
|
DWORD dwBytesWritten;
|
|
if (WriteFile( hFile, PropVar[0].caub.pElems, PropVar[0].caub.cElems, &dwBytesWritten, NULL ))
|
|
{
|
|
// Success
|
|
}
|
|
else
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
}
|
|
CloseHandle(hFile);
|
|
}
|
|
else
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = E_FAIL;
|
|
WIA_PRINTHRESULT((hr,TEXT("There is no audio data")));
|
|
}
|
|
|
|
FreePropVariantArray( ARRAYSIZE(PropVar), PropVar );
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
bool IsDeviceCommandSupported( IWiaItem *pWiaItem, const GUID &guidCommand )
|
|
{
|
|
//
|
|
// Assume failure
|
|
//
|
|
bool bResult = false;
|
|
|
|
//
|
|
// Make sure we have a valid item
|
|
//
|
|
if (pWiaItem)
|
|
{
|
|
//
|
|
// Get the device capabilities enumerator
|
|
//
|
|
CComPtr<IEnumWIA_DEV_CAPS> pDeviceCapabilities;
|
|
HRESULT hr = pWiaItem->EnumDeviceCapabilities( WIA_DEVICE_COMMANDS, &pDeviceCapabilities );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// Enumerate the capabilities
|
|
//
|
|
WIA_DEV_CAP WiaDeviceCapability;
|
|
while (!bResult && S_OK == pDeviceCapabilities->Next(1, &WiaDeviceCapability, NULL))
|
|
{
|
|
//
|
|
// If we have a match, set the return value to true
|
|
//
|
|
if (guidCommand == WiaDeviceCapability.guid)
|
|
{
|
|
bResult = true;
|
|
}
|
|
|
|
//
|
|
// Clean up the allocated data in the dev caps structure
|
|
//
|
|
if (WiaDeviceCapability.bstrName)
|
|
{
|
|
SysFreeString(WiaDeviceCapability.bstrName);
|
|
}
|
|
if (WiaDeviceCapability.bstrDescription)
|
|
{
|
|
SysFreeString(WiaDeviceCapability.bstrDescription);
|
|
}
|
|
if (WiaDeviceCapability.bstrIcon)
|
|
{
|
|
SysFreeString(WiaDeviceCapability.bstrIcon);
|
|
}
|
|
if (WiaDeviceCapability.bstrCommandline)
|
|
{
|
|
SysFreeString(WiaDeviceCapability.bstrCommandline);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return bResult;
|
|
}
|
|
|
|
HRESULT StampItemTimeOnFile( IWiaItem *pWiaItem, LPCTSTR pszFilename )
|
|
{
|
|
if (!pWiaItem || !pszFilename || !lstrlen(pszFilename))
|
|
{
|
|
return E_INVALIDARG;
|
|
}
|
|
//
|
|
// All this, just to set the stinking file time...
|
|
// Allows for the possibility of using a VT_FILETIME
|
|
// just in case we ever make the intelligent decision
|
|
// to support VT_FILETIME
|
|
//
|
|
CComPtr<IWiaPropertyStorage> pWiaPropertyStorage;
|
|
HRESULT hr = pWiaItem->QueryInterface( IID_IWiaPropertyStorage, (void **)&pWiaPropertyStorage );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// Get the file time
|
|
//
|
|
PROPSPEC PropSpec[1] = {0};
|
|
PROPVARIANT PropVar[1] = {0};
|
|
|
|
PropSpec[0].ulKind = PRSPEC_PROPID;
|
|
PropSpec[0].propid = WIA_IPA_ITEM_TIME;
|
|
hr = pWiaPropertyStorage->ReadMultiple( ARRAYSIZE(PropSpec), PropSpec, PropVar );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// Check to see if we are using a SYSTEMTIME structure
|
|
//
|
|
if (PropVar[0].vt > VT_NULL && PropVar[0].caub.pElems && PropVar[0].caub.cElems >= (sizeof(SYSTEMTIME)>>1))
|
|
{
|
|
//
|
|
// Convert the systemtime to a local filetime
|
|
//
|
|
FILETIME FileTimeLocal;
|
|
if (SystemTimeToFileTime( reinterpret_cast<SYSTEMTIME*>(PropVar[0].caub.pElems), &FileTimeLocal ))
|
|
{
|
|
//
|
|
// Convert the local filetime to a UTC filetime
|
|
//
|
|
FILETIME FileTimeUTC;
|
|
if (LocalFileTimeToFileTime( &FileTimeLocal, &FileTimeUTC ))
|
|
{
|
|
//
|
|
// Open the file handle
|
|
//
|
|
HANDLE hFile = CreateFile( pszFilename, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
|
|
if (INVALID_HANDLE_VALUE != hFile)
|
|
{
|
|
//
|
|
// Set the file creation time
|
|
//
|
|
if (!SetFileTime( hFile, &FileTimeUTC, NULL, NULL ))
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
WIA_PRINTHRESULT((hr,TEXT("SetFileTime failed")));
|
|
}
|
|
CloseHandle( hFile );
|
|
}
|
|
else
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
WIA_PRINTHRESULT((hr,TEXT("CreateFile failed")));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
WIA_PRINTHRESULT((hr,TEXT("FileTimeToLocalFileTime failed")));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
WIA_PRINTHRESULT((hr,TEXT("SystemTimeToFileTime failed")));
|
|
}
|
|
}
|
|
else if (VT_FILETIME == PropVar[0].vt)
|
|
{
|
|
//
|
|
// Convert the local filetime to a UTC filetime
|
|
//
|
|
FILETIME FileTimeUTC;
|
|
if (LocalFileTimeToFileTime( &PropVar[0].filetime, &FileTimeUTC ))
|
|
{
|
|
//
|
|
// Open the file handle
|
|
//
|
|
HANDLE hFile = CreateFile( pszFilename, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
|
|
if (INVALID_HANDLE_VALUE != hFile)
|
|
{
|
|
//
|
|
// Set the file creation time
|
|
//
|
|
if (!SetFileTime( hFile, &FileTimeUTC, NULL, NULL ))
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
WIA_PRINTHRESULT((hr,TEXT("SetFileTime failed")));
|
|
}
|
|
CloseHandle( hFile );
|
|
}
|
|
else
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
WIA_PRINTHRESULT((hr,TEXT("CreateFile failed")));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
WIA_PRINTHRESULT((hr,TEXT("FileTimeToLocalFileTime failed")));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = E_FAIL;
|
|
WIA_PRINTHRESULT((hr,TEXT("The time property is invalid")));
|
|
}
|
|
|
|
//
|
|
// Free the propvariant
|
|
//
|
|
FreePropVariantArray( ARRAYSIZE(PropVar), PropVar );
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("ReadMultiple on WIA_IPA_ITEM_TIME failed")));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WIA_ERROR((TEXT("QueryInterface on IWiaPropertyStorage failed")));
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
|
|
HRESULT MoveOrCopyFile( LPCTSTR pszSrc, LPCTSTR pszTgt )
|
|
{
|
|
WIA_PUSH_FUNCTION((TEXT("CDownloadImagesThreadMessage::MoveOrCopyFile( %s, %s )"), pszSrc, pszTgt ));
|
|
//
|
|
// Verify the arguments
|
|
//
|
|
if (!pszSrc || !pszTgt || !lstrlen(pszSrc) || !lstrlen(pszTgt))
|
|
{
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
//
|
|
// Assume everything worked ok
|
|
//
|
|
HRESULT hr = S_OK;
|
|
|
|
//
|
|
// First try to move the file, since that will be lots faster
|
|
//
|
|
if (!MoveFile( pszSrc, pszTgt ))
|
|
{
|
|
//
|
|
// If moving the file failed, try to copy it and the delete it
|
|
//
|
|
if (CopyFile( pszSrc, pszTgt, FALSE ))
|
|
{
|
|
//
|
|
// We are going to ignore failures from DeleteFile. It is possible the file is legitimately in
|
|
// use, and there is probably no need to fail the entire operation because of this.
|
|
//
|
|
if (!DeleteFile( pszSrc ))
|
|
{
|
|
WIA_PRINTHRESULT((HRESULT_FROM_WIN32(GetLastError()),TEXT("DeleteFile failed. Ignoring failure.")));
|
|
}
|
|
//
|
|
// Everything worked OK
|
|
//
|
|
hr = S_OK;
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// This is where we catch the main errors
|
|
//
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
CSimpleString CreateTempFileName( UINT nId )
|
|
{
|
|
//
|
|
// Initialize the return value to an empty string
|
|
//
|
|
CSimpleString strResult(TEXT(""));
|
|
|
|
//
|
|
// Get the temp folder path
|
|
//
|
|
TCHAR szTempDirectory[MAX_PATH] = {0};
|
|
DWORD dwResult = GetTempPath( ARRAYSIZE(szTempDirectory), szTempDirectory );
|
|
if (dwResult)
|
|
{
|
|
//
|
|
// Make sure the path length didn't exceed the buffer we allocated on the stack
|
|
//
|
|
if (ARRAYSIZE(szTempDirectory) >= dwResult)
|
|
{
|
|
//
|
|
// Get the temp file name
|
|
//
|
|
TCHAR szFileName[MAX_PATH] = {0};
|
|
if (GetTempFileName( szTempDirectory, TEXT("scw"), nId, szFileName ))
|
|
{
|
|
//
|
|
// Save the filename
|
|
//
|
|
strResult = szFileName;
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Return the result. An e mpty string denotes an error.
|
|
//
|
|
return strResult;
|
|
}
|
|
|
|
bool CanWiaImageBeSafelyRotated( const GUID &guidFormat, LONG nImageWidth, LONG nImageHeight )
|
|
{
|
|
WIA_PUSH_FUNCTION((TEXT("WiaUiUtil::CanWiaImageBeSafelyRotated( guidFormat, %d, %d )"), nImageWidth, nImageHeight ));
|
|
WIA_PRINTGUID((guidFormat,TEXT("guidFormat")));
|
|
|
|
//
|
|
// These are the image types we can possibly rotate (there may be exceptions below)
|
|
//
|
|
static const GUID *guidSafeFormats[] = { &WiaImgFmt_BMP, &WiaImgFmt_JPEG, &WiaImgFmt_PNG, &WiaImgFmt_GIF };
|
|
|
|
//
|
|
// Search for this image type
|
|
//
|
|
for (int i=0;i<ARRAYSIZE(guidSafeFormats);i++)
|
|
{
|
|
//
|
|
// If we've found it
|
|
//
|
|
if (*guidSafeFormats[i] == guidFormat)
|
|
{
|
|
//
|
|
// Handle exceptions to the rule
|
|
//
|
|
if (guidFormat == WiaImgFmt_JPEG)
|
|
{
|
|
//
|
|
// We can't do lossless rotation on JPG images that are not even multiples of 16 in size
|
|
//
|
|
if ((nImageWidth % 16) || (nImageHeight % 16))
|
|
{
|
|
WIA_TRACE((TEXT("This image is not valid for rotation because it is not an even multiple of 16")));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//
|
|
// If none of the exceptions applied, return TRUE
|
|
//
|
|
WIA_TRACE((TEXT("Returning true")));
|
|
return true;
|
|
}
|
|
}
|
|
|
|
//
|
|
// If it is not known that we CAN rotate, we report false
|
|
//
|
|
WIA_TRACE((TEXT("Format type not found in safe list")));
|
|
return false;
|
|
}
|
|
|
|
HRESULT ExploreWiaDevice( LPCWSTR pszDeviceId )
|
|
{
|
|
HRESULT hr;
|
|
|
|
//
|
|
// Make sure we have a valid device id
|
|
//
|
|
if (!pszDeviceId || !lstrlenW(pszDeviceId))
|
|
{
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
//
|
|
// Load the shell extension's dll
|
|
//
|
|
HINSTANCE hInstWiaShellDll = LoadLibrary(TEXT("WIASHEXT.DLL"));
|
|
if (hInstWiaShellDll)
|
|
{
|
|
//
|
|
// Get the function that creates pidls
|
|
//
|
|
WIAMAKEFULLPIDLFORDEVICE pfnMakeFullPidlForDevice = reinterpret_cast<WIAMAKEFULLPIDLFORDEVICE>(GetProcAddress(hInstWiaShellDll, "MakeFullPidlForDevice"));
|
|
if (pfnMakeFullPidlForDevice)
|
|
{
|
|
//
|
|
// Get the device PIDL
|
|
//
|
|
LPITEMIDLIST pidlDevice = NULL;
|
|
hr = pfnMakeFullPidlForDevice( const_cast<LPWSTR>(pszDeviceId), &pidlDevice );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// First, ask the shell to refresh any active views
|
|
//
|
|
SHChangeNotify(SHCNE_UPDATEDIR, SHCNF_IDLIST, pidlDevice, 0);
|
|
|
|
//
|
|
// Now show the folder
|
|
//
|
|
SHELLEXECUTEINFO ShellExecuteInfo = {0};
|
|
ShellExecuteInfo.cbSize = sizeof(ShellExecuteInfo);
|
|
ShellExecuteInfo.fMask = SEE_MASK_IDLIST;
|
|
ShellExecuteInfo.nShow = SW_SHOW;
|
|
ShellExecuteInfo.lpIDList = pidlDevice;
|
|
if (ShellExecuteEx( &ShellExecuteInfo ))
|
|
{
|
|
hr = S_OK;
|
|
}
|
|
|
|
//
|
|
// Free the pidl
|
|
//
|
|
LPMALLOC pMalloc = NULL;
|
|
if (SUCCEEDED(SHGetMalloc(&pMalloc)) && pMalloc)
|
|
{
|
|
pMalloc->Free(pidlDevice);
|
|
pMalloc->Release();
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = E_FAIL;
|
|
}
|
|
|
|
//
|
|
// Unload the DLL
|
|
//
|
|
FreeLibrary( hInstWiaShellDll );
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Can't load the DLL
|
|
//
|
|
hr = E_FAIL;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
//
|
|
// Modify a combo box's drop down list so that it is
|
|
// long enough to store the longest string in the list
|
|
// Taken from TaoYuan's code in photowiz.dll and modified
|
|
// to handle ComboBoxEx32 controls
|
|
//
|
|
BOOL ModifyComboBoxDropWidth( HWND hWndCombobox )
|
|
{
|
|
//
|
|
// Make sure we have a valid window
|
|
//
|
|
if (!hWndCombobox)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
//
|
|
// Find out how many items are in the combobox. If there are none, don't bother resizing.
|
|
//
|
|
LRESULT lRes = SendMessage( hWndCombobox, CB_GETCOUNT, 0, 0 );
|
|
if (lRes <= 0)
|
|
{
|
|
return FALSE;
|
|
}
|
|
UINT nCount = static_cast<UINT>(lRes);
|
|
|
|
//
|
|
// We only work with fixed-height comboboxes
|
|
//
|
|
lRes = SendMessage( hWndCombobox, CB_GETITEMHEIGHT, 0, 0 );
|
|
if (lRes < 0)
|
|
{
|
|
return FALSE;
|
|
}
|
|
UINT nItemHeight = static_cast<UINT>(lRes);
|
|
|
|
//
|
|
// We will be going through to figure out the desired size of the drop down list
|
|
//
|
|
UINT nDesiredWidth = 0;
|
|
|
|
//
|
|
// Add the size of the scrollbar to the desired witdth, of there is one
|
|
//
|
|
RECT rcDropped = {0};
|
|
SendMessage( hWndCombobox, CB_GETDROPPEDCONTROLRECT, 0, reinterpret_cast<LPARAM>(&rcDropped) );
|
|
|
|
//
|
|
// Get the size of the control's window
|
|
//
|
|
RECT rcWnd = {0};
|
|
GetWindowRect( hWndCombobox, &rcWnd );
|
|
|
|
|
|
//
|
|
// If not all of the items will fit in the dropped list,
|
|
// we have to account for a vertical scrollbar
|
|
//
|
|
if (((WiaUiUtil::RectHeight(rcDropped) - GetSystemMetrics(SM_CYEDGE)*2) / nItemHeight) < nCount)
|
|
{
|
|
nDesiredWidth += GetSystemMetrics(SM_CXEDGE)*2 + GetSystemMetrics( SM_CXVSCROLL );
|
|
}
|
|
|
|
//
|
|
// Find the widest string
|
|
//
|
|
LONG nMaxStringLen = 0;
|
|
HDC hDC = GetDC( hWndCombobox );
|
|
if (hDC)
|
|
{
|
|
//
|
|
// Use the control's font
|
|
//
|
|
HFONT hOldFont = NULL, hFont = reinterpret_cast<HFONT>(SendMessage(hWndCombobox,WM_GETFONT,0,0));
|
|
if (hFont)
|
|
{
|
|
hOldFont = SelectFont( hDC, hFont );
|
|
}
|
|
|
|
for (UINT i = 0; i < nCount; i++ )
|
|
{
|
|
//
|
|
// Get the length of this item's text
|
|
//
|
|
LRESULT nLen = SendMessage( hWndCombobox, CB_GETLBTEXTLEN, i, 0 );
|
|
if (nLen > 0)
|
|
{
|
|
//
|
|
// Allocate a buffer for the string
|
|
//
|
|
LPTSTR pszItem = new TCHAR[nLen+1];
|
|
if (pszItem)
|
|
{
|
|
//
|
|
// Get the string
|
|
//
|
|
pszItem[0] = TEXT('\0');
|
|
if (SendMessage( hWndCombobox, CB_GETLBTEXT, i, reinterpret_cast<LPARAM>(pszItem) ) > 0)
|
|
{
|
|
//
|
|
// Measure it
|
|
//
|
|
SIZE sizeText = {0};
|
|
if (GetTextExtentPoint32( hDC, pszItem, lstrlen( pszItem ), &sizeText ))
|
|
{
|
|
//
|
|
// If this is the longest one, save its length
|
|
//
|
|
if (sizeText.cx > nMaxStringLen)
|
|
{
|
|
nMaxStringLen = sizeText.cx;
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Free the string
|
|
//
|
|
delete[] pszItem;
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Restore and release the DC
|
|
//
|
|
if (hOldFont)
|
|
{
|
|
SelectFont( hDC, hOldFont );
|
|
}
|
|
ReleaseDC( hWndCombobox, hDC );
|
|
}
|
|
//
|
|
// Add in the longest string's length
|
|
//
|
|
nDesiredWidth += nMaxStringLen;
|
|
|
|
|
|
//
|
|
// If this is a ComboBoxEx32, add in the width of the icon
|
|
//
|
|
TCHAR szClassName[MAX_PATH] = {0};
|
|
if (GetClassName( hWndCombobox, szClassName, ARRAYSIZE(szClassName)))
|
|
{
|
|
//
|
|
// Compare the classname with ComboBoxEx32
|
|
//
|
|
if (!lstrcmp(szClassName,WC_COMBOBOXEX))
|
|
{
|
|
//
|
|
// Get the image list from the control
|
|
//
|
|
HIMAGELIST hImageList = reinterpret_cast<HIMAGELIST>(SendMessage( hWndCombobox, CBEM_GETIMAGELIST, 0, 0 ));
|
|
if (hImageList)
|
|
{
|
|
//
|
|
// Get the width and add it to the desired size
|
|
//
|
|
INT nWidth=0, nHeight=0;
|
|
if (ImageList_GetIconSize( hImageList, &nWidth, &nHeight ))
|
|
{
|
|
//
|
|
// I don't know what the margin should be, but nWidth*2
|
|
// should account for the width of icon and its margin
|
|
//
|
|
nDesiredWidth += nWidth * 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Add in the border of the control
|
|
//
|
|
nDesiredWidth += GetSystemMetrics(SM_CXFIXEDFRAME)*2;
|
|
|
|
//
|
|
// Make sure our drop down is no wider than the current monitor
|
|
//
|
|
HMONITOR hMonitor = MonitorFromWindow( hWndCombobox, MONITOR_DEFAULTTONEAREST );
|
|
if (hMonitor)
|
|
{
|
|
MONITORINFO MonitorInfo = {0};
|
|
MonitorInfo.cbSize = sizeof(MonitorInfo);
|
|
//
|
|
// Get the screen coordinates of this monitor
|
|
//
|
|
if (GetMonitorInfo(hMonitor, &MonitorInfo))
|
|
{
|
|
//
|
|
// If the desired width is larger than the monitor, shorten it
|
|
//
|
|
if (nDesiredWidth > static_cast<UINT>(WiaUiUtil::RectWidth(MonitorInfo.rcMonitor)))
|
|
{
|
|
nDesiredWidth = RectWidth(MonitorInfo.rcMonitor);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// If our size is smaller than the control's current size, grow it
|
|
//
|
|
if (static_cast<UINT>(WiaUiUtil::RectWidth(rcDropped)) < nDesiredWidth)
|
|
{
|
|
//
|
|
// Disable redrawing
|
|
//
|
|
SendMessage( hWndCombobox, WM_SETREDRAW, FALSE, 0 );
|
|
|
|
|
|
SendMessage( hWndCombobox, CB_SETDROPPEDWIDTH, static_cast<WPARAM>(nDesiredWidth), 0 );
|
|
|
|
//
|
|
// Allow redrawing
|
|
//
|
|
SendMessage( hWndCombobox, WM_SETREDRAW, TRUE, 0 );
|
|
|
|
//
|
|
// Force a repaint
|
|
//
|
|
InvalidateRect( hWndCombobox, NULL, FALSE );
|
|
UpdateWindow( hWndCombobox );
|
|
|
|
//
|
|
// TRUE means we actually changed it
|
|
//
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static LPCTSTR s_pszComboBoxExWndProcPropName = TEXT("WiaComboBoxExWndProcPropName");
|
|
|
|
static LRESULT WINAPI ComboBoxExWndProc( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam )
|
|
{
|
|
static WNDPROC s_pfnDefProc = NULL;
|
|
|
|
WNDPROC pfnWndProc = reinterpret_cast<WNDPROC>(GetProp( hWnd, s_pszComboBoxExWndProcPropName ));
|
|
|
|
if (!s_pfnDefProc)
|
|
{
|
|
WNDCLASS wc = {0};
|
|
GetClassInfo( GetModuleHandle(TEXT("user32.dll")), TEXT("ComboBox"), &wc );
|
|
s_pfnDefProc = wc.lpfnWndProc;
|
|
}
|
|
if (nMsg == WM_LBUTTONDOWN || nMsg == WM_RBUTTONDOWN)
|
|
{
|
|
if (s_pfnDefProc)
|
|
{
|
|
return CallWindowProc( s_pfnDefProc, hWnd, nMsg, wParam, lParam );
|
|
}
|
|
}
|
|
if (nMsg == WM_DESTROY)
|
|
{
|
|
RemoveProp( hWnd, s_pszComboBoxExWndProcPropName );
|
|
}
|
|
if (pfnWndProc)
|
|
{
|
|
return CallWindowProc( pfnWndProc, hWnd, nMsg, wParam, lParam );
|
|
}
|
|
else
|
|
{
|
|
return CallWindowProc( DefWindowProc, hWnd, nMsg, wParam, lParam );
|
|
}
|
|
}
|
|
|
|
//
|
|
// This subclasses the ComboBoxEx32 to work around a bug
|
|
// that causes the list to drop down at bad times.
|
|
// Uses a window property to store the previous wndproc.
|
|
// Taken from DavidShi's code in wiashext.dll
|
|
//
|
|
void SubclassComboBoxEx( HWND hWnd )
|
|
{
|
|
HWND hComboBox = FindWindowEx( hWnd, NULL, TEXT("ComboBox"), NULL );
|
|
if (hComboBox)
|
|
{
|
|
LONG_PTR pfnOldWndProc = SetWindowLongPtr( hComboBox, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(ComboBoxExWndProc));
|
|
SetProp( hComboBox, s_pszComboBoxExWndProcPropName, reinterpret_cast<HANDLE>(pfnOldWndProc) );
|
|
}
|
|
}
|
|
|
|
HRESULT IssueWiaCancelIO( IUnknown *pUnknown )
|
|
{
|
|
if (!pUnknown)
|
|
{
|
|
return E_POINTER;
|
|
}
|
|
|
|
CComPtr<IWiaItemExtras> pWiaItemExtras;
|
|
HRESULT hr = pUnknown->QueryInterface( IID_IWiaItemExtras, (void**)&pWiaItemExtras );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = pWiaItemExtras->CancelPendingIO();
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
|
|
HRESULT VerifyScannerProperties( IUnknown *pUnknown )
|
|
{
|
|
HRESULT hr = E_FAIL;
|
|
|
|
//
|
|
// Table of required properties
|
|
//
|
|
static const PROPID s_RequiredProperties[] =
|
|
{
|
|
WIA_IPS_CUR_INTENT
|
|
};
|
|
|
|
//
|
|
// Make sure we have a valid item
|
|
//
|
|
if (pUnknown)
|
|
{
|
|
//
|
|
// Assume success at this point
|
|
//
|
|
hr = S_OK;
|
|
|
|
//
|
|
// Get the IWiaPropertyStorage interface
|
|
//
|
|
CComPtr<IWiaPropertyStorage> pWiaPropertyStorage;
|
|
hr = pUnknown->QueryInterface(IID_IWiaPropertyStorage, (void**)&pWiaPropertyStorage);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// Loop through each property and make sure it exists
|
|
// Break out if hr != S_OK
|
|
//
|
|
for (int i=0;i<ARRAYSIZE(s_RequiredProperties) && S_OK==hr;i++)
|
|
{
|
|
//
|
|
// Prepare the propspec
|
|
//
|
|
PROPSPEC PropSpec = {0};
|
|
PropSpec.ulKind = PRSPEC_PROPID;
|
|
PropSpec.propid = s_RequiredProperties[i];
|
|
|
|
//
|
|
// Attempt to get the property attributes
|
|
//
|
|
ULONG nAccessFlags = 0;
|
|
PROPVARIANT PropVariant = {0};
|
|
hr = pWiaPropertyStorage->GetPropertyAttributes( 1, &PropSpec, &nAccessFlags, &PropVariant );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// Prevent a leak
|
|
//
|
|
PropVariantClear(&PropVariant);
|
|
|
|
//
|
|
// If everything is OK so far
|
|
//
|
|
if (S_OK == hr)
|
|
{
|
|
//
|
|
// Zero out the structure
|
|
//
|
|
PropVariantInit(&PropVariant);
|
|
|
|
//
|
|
// Attempt to read the actual value
|
|
//
|
|
hr = pWiaPropertyStorage->ReadMultiple( 1, &PropSpec, &PropVariant );
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// Free the actual value
|
|
//
|
|
PropVariantClear(&PropVariant);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// S_FALSE means a property doesn't exist, so change this to an error
|
|
//
|
|
if (S_FALSE == hr)
|
|
{
|
|
hr = E_FAIL;
|
|
}
|
|
|
|
//
|
|
// All done
|
|
//
|
|
return hr;
|
|
}
|
|
|
|
CSimpleString GetErrorTextFromHResult( HRESULT hr )
|
|
{
|
|
CSimpleString strResult;
|
|
LPTSTR szErrMsg = NULL;
|
|
FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
|
|
NULL,
|
|
hr,
|
|
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
|
|
reinterpret_cast<LPTSTR>(&szErrMsg),
|
|
0,
|
|
NULL
|
|
);
|
|
if (szErrMsg)
|
|
{
|
|
strResult = szErrMsg;
|
|
LocalFree( szErrMsg );
|
|
}
|
|
return strResult;
|
|
}
|
|
|
|
} // End namespace WiaUiUtil
|
|
|
|
|