Leaked source code of windows server 2003
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/*****************************************************************************
*
* Component: sndvol32.exe
* File: dlg.c
* Purpose: dialog template aggregator
*
* Copyright (c) 1985-1998 Microsoft Corporation
*
*****************************************************************************/
#include <windows.h>
#include <windowsx.h>
#include <string.h>
#include "dlg.h"
#include <winuserp.h>
/*
* DlgLoadResource
*
* */
HGLOBAL Dlg_LoadResource(
HINSTANCE hModule,
LPCTSTR lpszName,
DWORD *pcbSize)
{
HRSRC hrsrc;
HGLOBAL hres;
HGLOBAL hlock;
hrsrc = FindResource(hModule, lpszName, RT_DIALOG);
if (!hrsrc)
return NULL;
hres = LoadResource(hModule, hrsrc);
if (!hres)
return NULL;
hlock = LockResource(hres);
if (pcbSize)
{
if (hlock)
*pcbSize = SizeofResource(hModule, hrsrc);
else
*pcbSize = 0L;
}
return hlock;
}
/*
* DlgHorizAttach
* - Attaches a dialog template horizontally to another dialog
* - if lpMain == NULL allocs a new dialog copy.
*
* */
LPBYTE Dlg_HorizAttach(
LPBYTE lpMain,
DWORD cbMain,
LPBYTE lpAdd,
DWORD cbAdd,
WORD wIdOffset,
DWORD *pcbNew)
{
LPBYTE lpDst;
LPBYTE lpDstOffset;
LPBYTE lpSrcOffset;
DWORD cbDst;
DWORD cbOffset = 0L, cbAddOffset;
int idit;
BOOL bDialogEx;
int iditCount;
DLGTEMPLATE * lpdtDst;
DLGTEMPLATE * lpdtAdd;
DLGTEMPLATE2 * lpdtDst2;
DLGTEMPLATE2 * lpdtAdd2;
if (lpMain)
{
cbDst = cbMain + cbAdd;
lpDst = GlobalReAllocPtr(lpMain, cbDst, GHND);
}
else
{
// no dialog to append to, so just make a copy
lpDst = Dlg_HorizDupe(lpAdd, cbAdd, 1, &cbDst);
if (!lpDst)
{
if (pcbNew)
*pcbNew = 0L;
return NULL;
}
*pcbNew = cbDst;
return lpDst;
}
if (!lpDst)
{
if (pcbNew)
*pcbNew = 0L;
return NULL;
}
// advance to end of dlgitemtemplates already there
if(((DLGTEMPLATE2 *)lpDst)->wSignature == 0xffff)
{
//
// We assume lpdtDst and lpdtAdd are both the same type of
// template, either DIALOG or DIALOGEX
//
lpdtDst2 = (DLGTEMPLATE2 *)lpDst;
iditCount = lpdtDst2->cDlgItems;
bDialogEx = TRUE;
}
else
{
lpdtDst = (DLGTEMPLATE *)lpDst;
iditCount = lpdtDst->cdit;
bDialogEx = FALSE;
}
cbOffset = Dlg_CopyDLGTEMPLATE(NULL, lpDst, bDialogEx);
for (idit = 0; idit < iditCount; idit++)
{
DWORD cbDIT;
lpDstOffset = lpDst + cbOffset;
cbDIT = Dlg_CopyDLGITEMTEMPLATE(NULL
, lpDstOffset
, (WORD)0
, (short)0
, (short)0
, bDialogEx);
cbOffset += cbDIT;
}
// advance to the start of the dlgitemtemplates to add
if (bDialogEx)
{
lpdtAdd2 = (DLGTEMPLATE2 *)lpAdd;
iditCount = lpdtAdd2->cDlgItems;
}
else
{
lpdtAdd = (DLGTEMPLATE *)lpAdd;
iditCount = lpdtAdd->cdit;
}
cbAddOffset = Dlg_CopyDLGTEMPLATE(NULL, lpAdd, bDialogEx);
// add the new dialog templates
for (idit = 0; idit < iditCount; idit++)
{
DWORD cbDIT;
short cx = bDialogEx ? lpdtDst2->cx : lpdtDst->cx;
lpDstOffset = lpDst + cbOffset;
lpSrcOffset = lpAdd + cbAddOffset;
cbDIT = Dlg_CopyDLGITEMTEMPLATE(lpDstOffset
, lpSrcOffset
, (WORD)wIdOffset
, cx
, (short)0
, bDialogEx);
cbOffset += cbDIT;
cbAddOffset += cbDIT;
}
if (bDialogEx)
{
lpdtDst2->cDlgItems += lpdtAdd2->cDlgItems;
lpdtDst2->cx += lpdtAdd2->cx;
lpdtDst2->cy = max(lpdtAdd2->cy, lpdtDst2->cy);
}
else
{
lpdtDst->cdit += lpdtAdd->cdit;
lpdtDst->cx += lpdtAdd->cx;
lpdtDst->cy = max(lpdtAdd->cy, lpdtDst->cy);
}
if (pcbNew)
*pcbNew = cbOffset;
return lpDst;
}
/*
* Dlg_HorizSize
*
* Returns width of dialog box in dlu's.
*
* */
DWORD Dlg_HorizSize(
LPBYTE lpDlg)
{
if(((DLGTEMPLATE2 *)lpDlg)->wSignature == 0xffff)
{
return (((DLGTEMPLATE2 *)lpDlg)->cx - 2); // Compensate for right side trimming
}
else
{
return (((DLGTEMPLATE *)lpDlg)->cx - 2); // Compensate for right side trimming
}
}
/*
* DlgHorizDupe
*
* */
LPBYTE Dlg_HorizDupe(
LPBYTE lpSrc,
DWORD cbSrc,
int cDups,
DWORD *pcbNew)
{
int idit;
int iDup;
DWORD cbOffset;
DWORD cbDTOffset;
DWORD cbDT0Offset;
LPBYTE lpDst;
DLGTEMPLATE * lpdt;
DLGTEMPLATE2 * lpdt2;
LPBYTE lpDstOffset;
LPBYTE lpSrcOffset;
DWORD cbSize;
int iCount;
BOOL bDialogEx;
cbSize = cDups * cbSrc;
//DWORD align
cbSize = (cbSize + 3)&~3;
lpDst = GlobalAllocPtr(GHND, cbSize);
if (!lpDst)
return NULL;
if(((DLGTEMPLATE2 *)lpSrc)->wSignature == 0xffff)
{
lpdt2 = (DLGTEMPLATE2 *)lpDst;
iCount = ((DLGTEMPLATE2 *)lpSrc)->cDlgItems;
bDialogEx = TRUE;
}
else
{
lpdt = (DLGTEMPLATE *)lpDst;
iCount = ((DLGTEMPLATE *)lpSrc)->cdit;
bDialogEx = FALSE;
}
cbDT0Offset = cbDTOffset = cbOffset = Dlg_CopyDLGTEMPLATE(lpDst,lpSrc, bDialogEx);
for (iDup = 0; iDup < cDups; iDup++)
{
// reset the DTOffset to the first DIT
cbDTOffset = cbDT0Offset;
for (idit = 0; idit < iCount; idit++)
{
DWORD cbDIT;
short cx = bDialogEx ? lpdt2->cx : lpdt->cx;
lpDstOffset = lpDst + cbOffset;
lpSrcOffset = lpSrc + cbDTOffset;
cbDIT = Dlg_CopyDLGITEMTEMPLATE(lpDstOffset
, lpSrcOffset
, (WORD)(iDup * IDOFFSET) // all id increments are by IDOFFSET
, (short)(iDup * cx)
, (short)0 // no y increments
, bDialogEx);
cbOffset += cbDIT;
cbDTOffset += cbDIT;
}
}
// adjust template width and number of items
if (bDialogEx)
{
lpdt2->cDlgItems *= (WORD)cDups;
lpdt2->cx *= (short)cDups;
}
else
{
lpdt->cdit *= (WORD)cDups;
lpdt->cx *= (short)cDups;
}
if (pcbNew)
*pcbNew = cbOffset;
return lpDst;
}
/*
* DlgCopyDLGITEMTEMPLATE
*
* if lpDst == NULL only returns offset into lpSrc of next dlgitemtemplate
* */
DWORD Dlg_CopyDLGITEMTEMPLATE(
LPBYTE lpDst,
LPBYTE lpSrc,
WORD wIdOffset,
short xOffset,
short yOffset,
BOOL bDialogEx)
{
LPBYTE lpOffset;
DWORD cbDlg=bDialogEx ? sizeof(DLGITEMTEMPLATE2):sizeof(DLGITEMTEMPLATE);
DLGITEMTEMPLATE * lpdit;
DLGITEMTEMPLATE2 * lpdit2;
if (bDialogEx)
{
lpdit2= (DLGITEMTEMPLATE2 *)lpDst;
}
else
{
lpdit = (DLGITEMTEMPLATE *)lpDst;
}
// Control class
lpOffset = lpSrc + cbDlg;
if (*(LPWORD)lpOffset == 0xFFFF)
{
cbDlg += 2*sizeof(WORD);
}
else
{
cbDlg += (wcslen((LPWSTR)lpOffset) + 1) * sizeof(WCHAR);
}
lpOffset = lpSrc + cbDlg;
if (*(LPWORD)lpOffset == 0xFFFF)
{
cbDlg += 2*sizeof(WORD);
}
else
{
cbDlg += (wcslen((LPWSTR)lpOffset) + 1) * sizeof(WCHAR);
}
cbDlg += sizeof(WORD);
// DWORD align.
cbDlg = (cbDlg + 3)&~3;
if (lpDst)
{
CopyMemory(lpDst, lpSrc, cbDlg);
if (bDialogEx)
{
lpdit2->x += xOffset;
lpdit2->y += yOffset;
// id offset only if the control isn't static
if (lpdit2->dwID != -1)
lpdit2->dwID += wIdOffset;
}
else
{
lpdit->x += xOffset;
lpdit->y += yOffset;
// id offset only if the control isn't static
if (lpdit->id != -1)
lpdit->id += wIdOffset;
}
}
return cbDlg;
}
/*
* DlgCopyDLGTEMPLATE
*
* if lpDst == NULL only returns offset into lpSrc to first dlgitemtemplate
*
* */
DWORD Dlg_CopyDLGTEMPLATE(
LPBYTE lpDst,
LPBYTE lpSrc,
BOOL bDialogEx)
{
LPBYTE lpOffset;
UINT uiStyle;
DWORD cbDlg = bDialogEx ? sizeof(DLGTEMPLATE2) : sizeof(DLGTEMPLATE);
// Menu description
lpOffset = lpSrc + cbDlg;
if (*(LPWORD)lpOffset == 0xFFFF)
{
cbDlg += 2*sizeof(WORD);
}
else if (*(LPWORD)lpOffset == 0x0000)
{
cbDlg += sizeof(WORD);
}
else
{
cbDlg += (wcslen((LPWSTR)lpOffset) + 1)*sizeof(WCHAR);
}
// Window class
lpOffset = lpSrc + cbDlg;
if (*(LPWORD)lpOffset == 0xFFFF)
{
cbDlg += 2*sizeof(WORD);
}
else if (*(LPWORD)lpOffset == 0x0000)
{
cbDlg += sizeof(WORD);
}
else
{
cbDlg += (wcslen((LPWSTR)lpOffset) + 1) * sizeof(WCHAR);
}
// Title
lpOffset = lpSrc + cbDlg;
cbDlg += (wcslen((LPWSTR)lpOffset) + 1) * sizeof(WCHAR);
// Font
if (bDialogEx)
{
uiStyle = ((DLGTEMPLATE2 * )lpSrc)->style;
}
else
{
uiStyle = ((DLGTEMPLATE * )lpSrc)->style;
}
if (uiStyle & DS_SETFONT)
{
cbDlg += sizeof(WORD);
if (bDialogEx)
{
cbDlg += sizeof(WORD);
cbDlg += sizeof(BYTE);
cbDlg += sizeof(BYTE);
}
lpOffset = lpSrc + cbDlg;
cbDlg += (wcslen((LPWSTR)lpOffset) + 1) *sizeof(WCHAR);
}
// DWORD align
cbDlg = (cbDlg + 3)&~3;
// copy the dlgtemplate into the destination.
if (lpDst)
CopyMemory(lpDst, lpSrc, cbDlg);
return cbDlg;
}