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196 lines
3.6 KiB
196 lines
3.6 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1993.
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//
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// File: output.cpp
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//
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// Contents: String output functions for displaying text on the main
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// edit window
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//
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// Classes:
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//
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// Functions: OutputString
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// SaveToFile
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//
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// History: dd-mmm-yy Author Comment
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// 22-Mar-94 alexgo author
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//
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//--------------------------------------------------------------------------
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#include "oletest.h"
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#include <commdlg.h>
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#ifndef WIN32
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#include <stdarg.h>
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#endif
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//
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// handle to memory where the text is stored
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//
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// Please note this is really burfy (having all these globals). But for
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// the purposes of a simple driver app, it is the easiest.
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//
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static HGLOBAL hText; // handle to the Text
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static ULONG cbText;
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static ULONG iText;
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//+-------------------------------------------------------------------------
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//
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// Function: OutputString
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//
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// Synopsis: Dumps the string in printf format to the screen
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//
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// Effects:
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//
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// Arguments: [szFormat] -- the format string
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// [...] -- variable arguments
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//
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// Requires:
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//
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// Returns: int, the number of characters written (returned by sprintf)
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//
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// Signals:
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//
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// Modifies:
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//
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// Algorithm:
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//
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// History: dd-mmm-yy Author Comment
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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int OutputString( char *szFormat, ... )
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{
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LPSTR psz;
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va_list ap;
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int cbWritten;
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va_start(ap, szFormat);
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if( !hText )
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{
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hText = GlobalAlloc( GMEM_MOVEABLE , 2048 );
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assert(hText);
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cbText = 2048;
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}
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// double the size of the array if we need to
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if( iText > cbText / 2 )
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{
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hText = GlobalReAlloc(hText, cbText * 2, GMEM_MOVEABLE );
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assert(hText);
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cbText *= 2;
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}
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psz = (LPSTR)GlobalLock(hText);
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assert(psz);
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cbWritten = wvsprintf( psz + iText, szFormat, ap);
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iText += cbWritten;
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va_end(ap);
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SetWindowText(vApp.m_hwndEdit, psz);
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GlobalUnlock(hText);
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return cbWritten;
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}
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//+-------------------------------------------------------------------------
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//
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// Function: SaveToFile
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//
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// Synopsis: Gets a filename from the user and save the text buffer into it
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//
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// Effects:
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//
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// Arguments: void
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//
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// Requires:
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//
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// Returns: void
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//
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// Signals:
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//
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// Modifies:
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//
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// Algorithm:
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//
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// History: dd-mmm-yy Author Comment
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// 24-Mar-94 alexgo author
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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void SaveToFile( void )
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{
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char szFileName[MAX_PATH];
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OPENFILENAME ofn;
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static char * szFilter[] = { "Log Files (*.log)", "*.log",
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"All Files (*.*)", "*.*", ""};
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FILE * fp;
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LPSTR psz;
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memset(&ofn, 0, sizeof(OPENFILENAME));
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ofn.lStructSize = sizeof(OPENFILENAME);
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ofn.hwndOwner = vApp.m_hwndMain;
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ofn.lpstrFilter = szFilter[0];
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ofn.nFilterIndex = 0;
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szFileName[0] = '\0';
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ofn.lpstrFile = szFileName;
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ofn.nMaxFile = MAX_PATH;
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ofn.Flags = OFN_PATHMUSTEXIST | OFN_OVERWRITEPROMPT;
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//
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// Get the file
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//
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if (GetSaveFileName(&ofn) == FALSE)
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{
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// user hit cancel
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return;
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}
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// the 'b' specifies binary mode, so \n --> \r\n translations are
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// not done.
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if( !(fp = fopen( szFileName, "wb")) )
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{
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MessageBox( NULL, "Can't open file!", "OleTest Driver",
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MB_ICONEXCLAMATION );
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return;
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}
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psz = (LPSTR)GlobalLock(hText);
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assert(psz);
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fwrite(psz, iText, sizeof(char), fp);
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fclose(fp);
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GlobalUnlock(hText);
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return;
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}
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