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1466 lines
43 KiB
1466 lines
43 KiB
/*************************************************************************/
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/* Copyright (C) 1999 Microsoft Corporation */
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/* File: CBitmap.cpp */
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/* Description: Bitmap control which supports drawing bitmaps for */
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/* buttons, images, etc. phillu 11/16/99 */
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/*************************************************************************/
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#include "stdafx.h"
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#include "CBitmap.h"
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// automatically generated list of bmp names and corresponding rect's.
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#include "bmplist.h"
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// initialization of static variables
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HBITMAP CBitmap::m_hMosaicBMP = NULL;
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HBITMAP CBitmap::m_hMosaicBMPOld = NULL;
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HPALETTE CBitmap::m_hMosaicPAL = NULL;
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HPALETTE CBitmap::m_hMosaicPALOld = NULL;
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HDC CBitmap::m_hMosaicDC = NULL;
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bool CBitmap::m_fLoadMosaic = true;
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long CBitmap::m_cBitsPerPixel = 0;
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long CBitmap::m_cxScreen = 0;
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long CBitmap::m_cyScreen = 0;
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// seems we need a DIB section for palettte handeling, but the Millenium one acts up
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#if 1
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#define DIB_FLAG LR_CREATEDIBSECTION
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#else
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#define DIB_FLAG 0
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#endif
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//#define USE_LOADIMAGE LoadImage does not seem to work on palette base devices
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#define DIB_HEADER_MARKER ((WORD) ('M' << 8) | 'B')
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/*************************************************************************/
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/* Function: Init */
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/*************************************************************************/
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void CBitmap::Init(){
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m_hBitmap = NULL;
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m_hBitmapOld = NULL;
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m_hSrcDC = NULL;
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m_hPal = NULL;
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m_hPalOld = NULL;
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m_hMemDC = NULL;
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m_hMemBMP = NULL;
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m_hMemBMPOld = NULL;
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m_hMemPALOld = NULL;
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m_iMemDCWidth = 0;
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m_iMemDCHeight = 0;
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m_blitType = DISABLE;
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m_stretchType = NORMAL;
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m_fLoadPalette = false;
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::SetRect(&m_rc, 0, 0, 0, 0);
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m_bUseMosaicBitmap = FALSE;
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m_hInstanceRes = NULL;
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}/* end of function Init */
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bool CBitmap::IsEmpty()
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{
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return (m_rc.top == m_rc.bottom && m_rc.left == m_rc.right);
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}
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/*************************************************************************/
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/* Function: CleanUp */
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/* Description: Destroys the objects. */
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/*************************************************************************/
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void CBitmap::CleanUp() {
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try {
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// cleanup the background image resources
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if (m_hBitmap){
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::DeleteObject(m_hBitmap);
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m_hBitmap = NULL;
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}/* end of if statement */
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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try {
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if (m_hSrcDC && !m_bUseMosaicBitmap){
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::DeleteDC(m_hSrcDC);
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m_hSrcDC = NULL;
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}/* end of if statement */
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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try {
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// cleanup the palette if applicable
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if (m_hPal){
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::DeleteObject(m_hPal);
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m_hPal = NULL;
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}/* end of if statement */
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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try {
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DeleteMemDC();
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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bool fLoadPalette = m_fLoadPalette;
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Init();
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m_fLoadPalette = fLoadPalette;
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}/* end of function Cleanup */
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// this function is to clean up the mosaic bitmap
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// after all objects are destroyed.
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void CBitmap::FinalRelease()
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{
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try {
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if (m_hMosaicBMP){
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::DeleteObject(m_hMosaicBMP);
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m_hMosaicBMP = NULL;
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}/* end of if statement */
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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try {
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if (m_hMosaicDC){
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::DeleteDC(m_hMosaicDC);
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m_hMosaicDC = NULL;
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}
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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try {
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if (m_hMosaicPAL){
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::DeleteObject(m_hMosaicPAL);
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m_hMosaicPAL = NULL;
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}
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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return;
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}
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/*************************************************************/
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/* Name: CreateMemDC
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/* Description: Create a Mem DC
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/*************************************************************/
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BOOL CBitmap::CreateMemDC(HDC hDC, LPRECT lpDCRect)
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{
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LONG lWidth = RECTWIDTH(lpDCRect);
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LONG lHeight = RECTHEIGHT(lpDCRect);
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// clean up the old DC before we make a new one
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DeleteMemDC();
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m_hMemDC = ::CreateCompatibleDC(hDC);
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if(m_hMemDC == NULL)
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{
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return(FALSE);
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}
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m_iMemDCWidth = lWidth;
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m_iMemDCHeight = lHeight;
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m_hMemBMP = ::CreateCompatibleBitmap(hDC, m_iMemDCWidth, m_iMemDCHeight);
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if(m_hMemBMP == NULL)
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{
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::DeleteDC(m_hMemDC);
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return(FALSE);
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}
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m_hMemBMPOld = (HBITMAP)::SelectObject(m_hMemDC, m_hMemBMP);
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HPALETTE hPal = GetPal();
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SelectRelizePalette(m_hMemDC, hPal, &m_hMemPALOld);
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// stretch and blit the src DC onto the Mem DC
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return TRUE;
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}
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/*************************************************************/
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/* Function: SelectRelizePalette */
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/* Description: Selects and relizes palette into a dc. */
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/*************************************************************/
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HRESULT CBitmap::SelectRelizePalette(HDC hdc, HPALETTE hPal, HPALETTE* hPalOld){
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if(NULL == hdc){
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return (E_INVALIDARG);
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}/* end of if statement */
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if(NULL == hPal){
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return (E_INVALIDARG);
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}/* end of if statement */
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if((::GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE) == RC_PALETTE){
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HPALETTE hPalTmp = ::SelectPalette(hdc, hPal, FALSE);
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if (hPalOld) {
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*hPalOld = hPalTmp;
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}
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::RealizePalette(hdc);
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}/* end of if statement */
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return S_OK;
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}/* end of function SelectRelizePalette */
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/*************************************************************/
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/* Name: DeleteMosaicDC
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/* Description:
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/*************************************************************/
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void CBitmap::DeleteMosaicDC(){
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try {
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if (m_hMosaicDC){
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if (m_hMosaicBMPOld)
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::SelectObject(m_hMosaicDC, m_hMosaicBMPOld);
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if (m_hMosaicPALOld)
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::SelectPalette(m_hMosaicDC, m_hMosaicPALOld, FALSE);
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}/* end of if statement */
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if (m_hMosaicBMP){
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::DeleteObject(m_hMosaicBMP);
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m_hMosaicBMP = NULL;
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}/* end of if statement */
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if (m_hMosaicDC){
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::DeleteDC(m_hMosaicDC);
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m_hMosaicDC = NULL;
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}/* end of if statement */
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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}
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/*************************************************************/
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/* Name: OnDispChange
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/* Description:
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/*************************************************************/
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void CBitmap::OnDispChange(long cBitsPerPixel, long cxScreen, long cyScreen){
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try {
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if (cBitsPerPixel != m_cBitsPerPixel ||
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cxScreen != m_cxScreen ||
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cyScreen != m_cyScreen ) {
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m_cBitsPerPixel = cBitsPerPixel;
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m_cxScreen = cxScreen;
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m_cyScreen = cyScreen;
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DeleteMosaicDC();
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}
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if (m_bUseMosaicBitmap){
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m_hSrcDC = NULL;
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}
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else {
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if (m_hSrcDC) {
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if (NULL != m_hBitmapOld)
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::SelectObject(m_hSrcDC, m_hBitmapOld);
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if (NULL != m_hPalOld)
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::SelectPalette(m_hSrcDC, m_hPalOld, FALSE);
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}/* end of if statement */
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if (m_hBitmap) {
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::DeleteObject(m_hBitmap);
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m_hBitmap = NULL;
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}/* end of if statement */
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if (m_hSrcDC) {
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::DeleteDC(m_hSrcDC);
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m_hSrcDC = NULL;
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}/* end of if statement */
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} /* end of if statement */
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DeleteMemDC();
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}
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catch(...){
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ATLASSERT(FALSE);
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}
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}
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/*************************************************************/
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/* Name: DeleteMemDC
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/* Description:
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/*************************************************************/
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BOOL CBitmap::DeleteMemDC(){
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if (m_hMemDC) {
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if (m_hMemBMPOld)
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::SelectObject(m_hMemDC, m_hMemBMPOld);
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if (m_hMemPALOld)
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::SelectPalette(m_hMemDC, m_hMemPALOld, FALSE);
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} /* end of if statement */
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if (m_hMemBMP) {
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::DeleteObject(m_hMemBMP);
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m_hMemBMP = NULL;
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} /* end of if statement */
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if (m_hMemDC) {
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::DeleteDC(m_hMemDC);
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m_hMemDC = NULL;
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} /* end of if statement */
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m_iMemDCWidth = 0;
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m_iMemDCHeight = 0;
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return TRUE;
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}/* end of function DeleteMemDC */
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/*************************************************************************
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This is a special stretching method for stretching the backgound bitmap
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of container. The goal is to enlarge the bitmap without stretching, so as
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to maintain the border width of the container. This is accomplished
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by replicating portions of the bitmap on the 4 sides.
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************************************************************************/
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BOOL CBitmap::CustomContainerStretch(HDC hDC, RECT* lpRect)
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{
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LONG lSectionWidth = (min(RECTWIDTH(lpRect), RECTWIDTH(&m_rc)) + 1)/2;
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LONG lSectionHeight = (min(RECTHEIGHT(lpRect), RECTHEIGHT(&m_rc)) + 1)/2;
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// copy upper left quadrant
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::BitBlt(hDC,
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lpRect->left,
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lpRect->top,
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lSectionWidth,
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lSectionHeight,
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m_hSrcDC,
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m_rc.left,
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m_rc.top,
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SRCCOPY);
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// copy upper right quadrant
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::BitBlt(hDC,
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lpRect->right - lSectionWidth,
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lpRect->top,
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lSectionWidth,
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lSectionHeight,
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m_hSrcDC,
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m_rc.right - lSectionWidth,
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m_rc.top,
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SRCCOPY);
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// copy lower left quadrant
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::BitBlt(hDC,
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lpRect->left,
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lpRect->bottom - lSectionHeight,
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lSectionWidth,
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lSectionHeight,
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m_hSrcDC,
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m_rc.left,
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m_rc.bottom - lSectionHeight,
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SRCCOPY);
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// copy lower right quadrant
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::BitBlt(hDC,
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lpRect->right - lSectionWidth,
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lpRect->bottom - lSectionHeight,
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lSectionWidth,
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lSectionHeight,
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m_hSrcDC,
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m_rc.right - lSectionWidth,
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m_rc.bottom - lSectionHeight,
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SRCCOPY);
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// fill in the middle section
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LONG lGapWidth = RECTWIDTH(lpRect) - 2*lSectionWidth;
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LONG lGapHeight = RECTHEIGHT(lpRect) - 2*lSectionHeight;
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LONG lHorizFillStart = lpRect->left + lSectionWidth;
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LONG lVertFillStart = lpRect->top + lSectionHeight;
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// define a chunk of bitmap that can be used to fill the gap
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const LONG lSrcXOffset = 60;
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const LONG lSrcYOffset = 60;
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const LONG lMaxHorizontalFill = RECTWIDTH(&m_rc) - 2*lSrcXOffset;
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const LONG lMaxVerticalFill = RECTHEIGHT(&m_rc) - 3*lSrcYOffset; // twice room at bottom
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while (lGapWidth > 0)
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{
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// upper middle section
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LONG lFillWidth = min(lGapWidth, lMaxHorizontalFill);
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::BitBlt(hDC,
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lHorizFillStart,
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lpRect->top,
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lFillWidth,
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lSectionHeight,
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m_hSrcDC,
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m_rc.left + lSrcXOffset,
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m_rc.top,
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SRCCOPY);
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// bottom middle section
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::BitBlt(hDC,
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lHorizFillStart,
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lpRect->bottom - lSectionHeight,
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lFillWidth,
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lSectionHeight,
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m_hSrcDC,
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m_rc.left + lSrcXOffset,
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m_rc.bottom - lSectionHeight,
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SRCCOPY);
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lGapWidth -= lFillWidth;
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lHorizFillStart += lFillWidth;
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}
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while (lGapHeight > 0)
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{
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// left middle section
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LONG lFillHeight = min(lGapHeight, lMaxVerticalFill);
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::BitBlt(hDC,
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lpRect->left,
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lVertFillStart,
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lSectionWidth,
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lFillHeight,
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m_hSrcDC,
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m_rc.left,
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m_rc.top + lSrcYOffset,
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SRCCOPY);
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// right middle section
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::BitBlt(hDC,
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lpRect->right - lSectionWidth,
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lVertFillStart,
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lSectionWidth,
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lFillHeight,
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m_hSrcDC,
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m_rc.right - lSectionWidth,
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m_rc.top + lSrcYOffset,
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SRCCOPY);
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lGapHeight -= lFillHeight;
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lVertFillStart += lFillHeight;
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}
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return TRUE;
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}/* end of function SpecialStretch */
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|
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/*************************************************************************
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This stretching methods maintains the aspect ratio of the original bitmap.
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The unoccupied portion of the dest DC will be filled with BackColor.
|
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|
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**************************************************************************/
|
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BOOL CBitmap::StretchKeepAspectRatio(HDC hDC, LPRECT lpRect)
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{
|
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BOOL bSuccess = TRUE;
|
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LONG lWidth = RECTWIDTH(lpRect);
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LONG lHeight = RECTHEIGHT(lpRect);
|
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LONG lWidthSrc = RECTWIDTH(&m_rc);
|
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LONG lHeightSrc = RECTHEIGHT(&m_rc);
|
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|
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HBRUSH hbrBack = (HBRUSH)::GetStockObject(BLACK_BRUSH);
|
|
|
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if(NULL == hbrBack){
|
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|
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return(FALSE);
|
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}/* end of if statement */
|
|
|
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::FillRect(hDC, lpRect, hbrBack);
|
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::DeleteObject(hbrBack);
|
|
|
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if (lWidth*lHeightSrc < lHeight*lWidthSrc)
|
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{
|
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LONG lStretchHeight = (LONG)((float)lHeightSrc*lWidth/lWidthSrc + 0.5f);
|
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LONG lGapHeight = (lHeight - lStretchHeight)/2;
|
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|
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bSuccess = ::StretchBlt(hDC,
|
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lpRect->left, // DestX
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lpRect->top + lGapHeight, // DestY
|
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lWidth, // nDestWidth
|
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lStretchHeight, // nDestHeight
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m_hSrcDC,
|
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m_rc.left, // SrcX
|
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m_rc.top, // SrcY
|
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lWidthSrc, // nSrcWidth
|
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lHeightSrc, // nSrcHeight
|
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SRCCOPY
|
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);
|
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}
|
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else
|
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{
|
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LONG lStretchWidth = (LONG)((float)lWidthSrc*lHeight/lHeightSrc + 0.5f);
|
|
LONG lGapWidth = (lWidth - lStretchWidth)/2;
|
|
|
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bSuccess = ::StretchBlt(hDC,
|
|
lpRect->left + lGapWidth, // DestX
|
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lpRect->top, // DestY
|
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lStretchWidth, // nDestWidth
|
|
lHeight, // nDestHeight
|
|
m_hSrcDC,
|
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m_rc.left, // SrcX
|
|
m_rc.top, // SrcY
|
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lWidthSrc, // nSrcWidth
|
|
lHeightSrc, // nSrcHeight
|
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SRCCOPY
|
|
);
|
|
}
|
|
|
|
return bSuccess;
|
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}
|
|
|
|
/*************************************************************************
|
|
This is the entry point to stretch paint the bitmap
|
|
|
|
m_stretchType indicates the type of stretching method to use:
|
|
|
|
NORMAL = 0 : normal stretching
|
|
CUSTOM_CONTAINER = 1 : special stretching method for container
|
|
MAINTAIN_ASPECT_RATIO =2 : stretching while maintaing aspect ratio
|
|
|
|
**************************************************************************/
|
|
|
|
BOOL CBitmap::StretchPaint(HDC hDC, LPRECT lpRect, COLORREF clrTrans)
|
|
{
|
|
BOOL bSuccess = TRUE;
|
|
|
|
LONG lWidth = RECTWIDTH(lpRect);
|
|
LONG lHeight = RECTHEIGHT(lpRect);
|
|
LONG lWidthSrc = RECTWIDTH(&m_rc);
|
|
LONG lHeightSrc = RECTHEIGHT(&m_rc);
|
|
|
|
// special case, src and dest rects are the same, just copy it
|
|
if (lWidth == lWidthSrc && lHeight == lHeightSrc)
|
|
{
|
|
bSuccess = ::BitBlt(hDC,
|
|
lpRect->left, // DestX
|
|
lpRect->top, // DestY
|
|
lWidth, // nDestWidth
|
|
lHeight, // nDestHeight
|
|
m_hSrcDC,
|
|
m_rc.left, // SrcX
|
|
m_rc.top, // SrcY
|
|
SRCCOPY
|
|
);
|
|
}
|
|
else if (m_stretchType == CUSTOM_CONTAINER)
|
|
{
|
|
bSuccess = CustomContainerStretch(hDC, lpRect);
|
|
}
|
|
else if (m_stretchType == MAINTAIN_ASPECT_RATIO)
|
|
{
|
|
bSuccess = StretchKeepAspectRatio(hDC, lpRect);
|
|
}
|
|
else // normal stretch
|
|
{
|
|
#if 1
|
|
// to ensure the transparent color is maintained, we first
|
|
// fill the DC with the transparent color, and then do a
|
|
// TransparentBlit. The resulting bitmap can be used for
|
|
// transparent blting again.
|
|
|
|
HBRUSH hbrTrans = ::CreateSolidBrush(clrTrans);
|
|
|
|
if(NULL == hbrTrans){
|
|
|
|
bSuccess = FALSE;
|
|
return(bSuccess);
|
|
}/* end of if statement */
|
|
|
|
::FillRect(hDC, lpRect, hbrTrans);
|
|
::DeleteObject(hbrTrans);
|
|
#endif
|
|
bSuccess = ::TransparentBlt(hDC,
|
|
lpRect->left, // DestX
|
|
lpRect->top, // DestY
|
|
lWidth, // nDestWidth
|
|
lHeight, // nDestHeight
|
|
m_hSrcDC,
|
|
m_rc.left, // SrcX
|
|
m_rc.top, // SrcY
|
|
lWidthSrc, // nSrcWidth
|
|
lHeightSrc, // nSrcHeight
|
|
clrTrans
|
|
);
|
|
}
|
|
|
|
return bSuccess;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Create the Src DC if it has not been done so before.
|
|
|
|
If the current object uses the mosaic, the src DC is just a copy
|
|
of the mosaic DC.
|
|
********************************************************************/
|
|
BOOL CBitmap::CreateSrcDC(HDC hDC)
|
|
{
|
|
// Src DC is already created from a previous call
|
|
|
|
if (m_hSrcDC != NULL)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
if (m_bUseMosaicBitmap)
|
|
{
|
|
if (m_hMosaicDC == NULL)
|
|
{
|
|
if (m_hMosaicBMP == NULL)
|
|
{
|
|
|
|
HRESULT hr = InitilizeMosaic(m_hInstanceRes);
|
|
if (FAILED(hr) || m_hMosaicBMP == NULL)
|
|
return FALSE;
|
|
}
|
|
|
|
m_hMosaicDC = ::CreateCompatibleDC(hDC);
|
|
|
|
if(NULL == m_hMosaicDC){
|
|
|
|
return(FALSE);
|
|
}/* end of if statement */
|
|
|
|
m_hMosaicBMPOld = (HBITMAP)::SelectObject(m_hMosaicDC, m_hMosaicBMP);
|
|
|
|
HPALETTE hPal = GetPal();
|
|
|
|
SelectRelizePalette(m_hMosaicDC, hPal, &m_hMosaicPALOld);
|
|
}
|
|
|
|
m_hSrcDC = m_hMosaicDC;
|
|
}
|
|
else
|
|
{
|
|
if (m_hBitmap == NULL){
|
|
HRESULT hr = LoadImageFromRes(m_strFileName, m_hInstanceRes);
|
|
if (FAILED(hr) || m_hBitmap == NULL)
|
|
return FALSE;
|
|
}/* end of if statement */
|
|
|
|
m_hSrcDC = ::CreateCompatibleDC(hDC);
|
|
|
|
if(NULL == m_hSrcDC){
|
|
|
|
return FALSE;
|
|
}/* end of if statement */
|
|
|
|
m_hBitmapOld = (HBITMAP)::SelectObject(m_hSrcDC, m_hBitmap);
|
|
|
|
HPALETTE hPal = GetPal();
|
|
SelectRelizePalette(m_hSrcDC, hPal, &m_hPalOld);
|
|
}
|
|
|
|
if (m_hSrcDC == NULL)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*************************************************************************
|
|
GetTransparentColor()
|
|
**************************************************************************/
|
|
COLORREF CBitmap::GetTransparentColor()
|
|
{
|
|
// retrieve transparent color according to type, default is magenta
|
|
COLORREF clrTrans = RGB(255, 0, 255);
|
|
|
|
if(TRANSPARENT_TOP_LEFT == m_blitType ||
|
|
TOP_LEFT_WITH_BACKCOLOR == m_blitType ||
|
|
TOP_LEFT_WINDOW_REGION == m_blitType )
|
|
{
|
|
clrTrans = ::GetPixel(m_hSrcDC, m_rc.left, m_rc.top);
|
|
}
|
|
else if(TRANSPARENT_BOTTOM_RIGHT == m_blitType ||
|
|
BOTTOM_RIGHT_WITH_BACKCOLOR == m_blitType ||
|
|
BOTTOM_RIGHT_WINDOW_REGION == m_blitType )
|
|
{
|
|
clrTrans = ::GetPixel(m_hSrcDC, m_rc.right-1, m_rc.bottom-1);
|
|
}
|
|
#if 0
|
|
// in case we are pallete capable device find the color in our palette
|
|
HPALETTE hPal = GetPal();
|
|
|
|
if(hPal){
|
|
HWND hwnd = ::GetDesktopWindow();
|
|
HDC hdc = ::GetWindowDC(hwnd);
|
|
|
|
if((::GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE) == RC_PALETTE){
|
|
|
|
UINT clrTmp = GetNearestPaletteIndex(hPal, clrTrans);
|
|
|
|
if(CLR_INVALID != clrTmp){
|
|
|
|
clrTrans = PALETTEINDEX(clrTmp);
|
|
}/* end of if statement */
|
|
}/* end of if statement */
|
|
|
|
::ReleaseDC(hwnd, hdc);
|
|
}/* end of if statement */
|
|
#endif
|
|
return clrTrans;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
PaintTransparentDIB is the main function call to draw the bitmap control.
|
|
|
|
Before PaintTransparentDIB is called, the bitmap should have been loaded by
|
|
PutImage(). Also the blitType and stretchType should have been set during
|
|
the PutImage call.
|
|
|
|
Input parameters:
|
|
|
|
hDC is the DC to paint the bitmap to
|
|
|
|
lpDCWRect is the rect of the entire control window. We should privide that
|
|
for buttons as well as container.
|
|
|
|
lpDCRect is the current rect to paint to. For container, it could be a sub
|
|
region of the lpDCWRect. For buttons, it is probably the same as
|
|
the lpDCWRect. (However this function does not rely on this assumption.)
|
|
|
|
Important data structures:
|
|
|
|
m_hSrcDC is the DC that contains the original bitmap (unstretched).
|
|
If the current object uses the mosaic bitmap, m_hSrcDC is just a copy
|
|
of the m_hMosaicDC while m_rc keeps the location of the bitmap within
|
|
the mosaic.
|
|
|
|
m_hMemDC caches a copy of the bitmap that is stretched to the window size.
|
|
This is used for quickly refreshing display if only portion of the screen
|
|
needs to be painted.
|
|
|
|
************************************************************************/
|
|
|
|
BOOL CBitmap::PaintTransparentDIB(HDC hDC,
|
|
LPRECT lpDCWRect,
|
|
LPRECT lpDCRect)
|
|
{
|
|
BOOL bSuccess = TRUE;
|
|
|
|
// create the src DC if we are first time here.
|
|
// But we should already have the bitmap in memory
|
|
|
|
if (!CreateSrcDC(hDC))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// Color in the bitmap that indicates transparent pixel
|
|
COLORREF clrTrans = GetTransparentColor();
|
|
|
|
// check if we already have the stretched bitmap cached in mem DC
|
|
// if not, create the MemDC and paint the stretched bitmap in it
|
|
|
|
LONG lWidth = RECTWIDTH(lpDCWRect);
|
|
LONG lHeight = RECTHEIGHT(lpDCWRect);
|
|
RECT rc = {0, 0, lWidth, lHeight};
|
|
|
|
if (!m_hMemDC || lWidth != m_iMemDCWidth || lHeight != m_iMemDCHeight)
|
|
{
|
|
if (!CreateMemDC(hDC, &rc))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
if (!StretchPaint(m_hMemDC, &rc, clrTrans))
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// blit MemDC to screen DC with transparency.
|
|
// Only the required DC Rect is painted (it could be a subregion of DCWRect)
|
|
|
|
LONG lPaintWidth = RECTWIDTH(lpDCRect);
|
|
LONG lPaintHeight = RECTHEIGHT(lpDCRect);
|
|
|
|
if (m_blitType != DISABLE)
|
|
{
|
|
bSuccess = ::TransparentBlt(hDC,
|
|
lpDCRect->left, // DestX
|
|
lpDCRect->top, // DestY
|
|
lPaintWidth, // nDestWidth
|
|
lPaintHeight, // nDestHeight
|
|
m_hMemDC,
|
|
lpDCRect->left - lpDCWRect->left, // SrcX
|
|
lpDCRect->top - lpDCWRect->top, // SrcY
|
|
lPaintWidth, // nSrcWidth
|
|
lPaintHeight, // nSrcHeight
|
|
clrTrans // transparent color
|
|
);
|
|
}
|
|
else // disabled, no transparency
|
|
{
|
|
bSuccess = ::BitBlt(hDC,
|
|
lpDCRect->left, // DestX
|
|
lpDCRect->top, // DestY
|
|
lPaintWidth, // nDestWidth
|
|
lPaintHeight, // nDestHeight
|
|
m_hMemDC,
|
|
lpDCRect->left - lpDCWRect->left, // SrcX
|
|
lpDCRect->top - lpDCWRect->top, // SrcY
|
|
SRCCOPY
|
|
);
|
|
}
|
|
|
|
return bSuccess;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
PutImage()
|
|
|
|
If bFromMosaic is FALSE, it loads a bitmap from either a disk BMP file
|
|
or from a BITMAP resource (depending on if hRes is NULL or not).
|
|
|
|
If bFromMosaic is TRUE, it records a rect region of a mosaic bitmap as
|
|
the bitmap for the current object. The mosaic bitmap itself can be loaded
|
|
from a disk BMP file or from a BITMAP resource (depending on if hRes is
|
|
NULL or not). But this mosaic bitmap is loaded only once for all the
|
|
objects that are sharing the mosaic. Loading from file or resource must
|
|
be consistent among all those objects.
|
|
|
|
The resource tag name or file name of the mosaic bitmap is currently
|
|
hard coded (as IDR_MOSAIC_BMP or mosaicbm.bmp).
|
|
|
|
This call also record the blit type and stretch type which indicate how
|
|
the bitmap is to be painted.
|
|
|
|
blitType:
|
|
DISABLE = 0 : Disabled, no transparency
|
|
TRANSPARENT_TOP_LEFT = 1: use clr of top left pix as transparent color
|
|
TRANSPARENT_BOTTOM_RIGHT = 2: use clr of bottom right as transparent color
|
|
TOP_LEFT_WINDOW_REGION = 3: currently treated as the same as 1
|
|
BOTTOM_RIGHT_WINDOW_REGION = 4: currently treated as the same as 2
|
|
TOP_LEFT_WITH_BACKCOLOR = 5: currently treated as the same as 1
|
|
BOTTOM_RIGHT_WITH_BACKCOLOR = 6: currently treated as the same as 2
|
|
|
|
stretchType:
|
|
NORMAL = 0 : normal stretching
|
|
CUSTOM_CONTAINER = 1 : special stretching method for container
|
|
MAINTAIN_ASPECT_RATIO : stretching while maintaing aspect ratio
|
|
|
|
|
|
*************************************************************************/
|
|
HRESULT CBitmap::PutImage(BSTR strFilename, HINSTANCE hRes,
|
|
BOOL bFromMosaic, // the bitmap is in Mosaic bitmap
|
|
TransparentBlitType blitType,
|
|
StretchType stretchType
|
|
)
|
|
{
|
|
USES_CONVERSION;
|
|
HRESULT hr = S_OK;
|
|
|
|
CleanUp();
|
|
|
|
// save the blit and stretch types
|
|
|
|
m_blitType = blitType;
|
|
m_stretchType = stretchType;
|
|
m_bUseMosaicBitmap = bFromMosaic;
|
|
m_strFileName = strFilename;
|
|
m_hInstanceRes = hRes;
|
|
|
|
// initialize the mosaic file
|
|
HRESULT hrTmp = InitilizeMosaic(hRes);
|
|
|
|
if(FAILED(hrTmp)){
|
|
|
|
// try to load up the file as a normal file or resource since mosaic load failed
|
|
m_bUseMosaicBitmap = FALSE;
|
|
}/* end of if statement */
|
|
|
|
if (!LookupBitmapRect(OLE2T(strFilename), &m_rc))
|
|
{
|
|
// load individual bitmap from resource or file
|
|
|
|
m_bUseMosaicBitmap = FALSE;
|
|
}
|
|
|
|
if (!m_bUseMosaicBitmap) {
|
|
hr = LoadImageFromRes(m_strFileName, m_hInstanceRes);
|
|
}
|
|
|
|
return hr;
|
|
}/* end of function PutImage */
|
|
|
|
/*************************************************************/
|
|
/* Name: LoadImageFromRes
|
|
/* Description:
|
|
/*************************************************************/
|
|
HRESULT CBitmap::LoadImageFromRes(BSTR strFileName, HINSTANCE hRes) {
|
|
|
|
USES_CONVERSION;
|
|
HRESULT hr = S_OK;
|
|
BITMAP bm;
|
|
|
|
TCHAR* strTmpFileName = TEXT("");
|
|
strTmpFileName = OLE2T(strFileName);
|
|
|
|
m_hBitmap = (HBITMAP)LoadImage(hRes, strTmpFileName, IMAGE_BITMAP, 0, 0,
|
|
DIB_FLAG | LR_DEFAULTSIZE | (hRes?0:LR_LOADFROMFILE));
|
|
|
|
if(NULL == m_hBitmap)
|
|
{
|
|
hr = HRESULT_FROM_WIN32(::GetLastError());
|
|
return hr;
|
|
}
|
|
|
|
::GetObject(m_hBitmap, sizeof(BITMAP), (LPVOID) &bm);
|
|
::SetRect(&m_rc, 0, 0, bm.bmWidth, bm.bmHeight);
|
|
|
|
return hr;
|
|
}/* end of function LoadImageFromRes */
|
|
|
|
/************************************************************************/
|
|
/* Function: InitilizeMosaic */
|
|
/* Description: Trys to load up the mosaic bitmap, which contains a */
|
|
/* collection of bitmaps. */
|
|
/************************************************************************/
|
|
HRESULT CBitmap::InitilizeMosaic(HINSTANCE hRes){
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
TCHAR* strTmpFileName = TEXT("");
|
|
|
|
// use a rectangular region of Mosaic bitmap
|
|
// make sure the mosaic only loads once for all the objects
|
|
|
|
if (m_hMosaicBMP == NULL){
|
|
|
|
if(!m_fLoadMosaic){
|
|
|
|
hr = E_FAIL; // we already failed before to load the mosaic file do not
|
|
//try it again
|
|
return(hr);
|
|
}/* end of if statement */
|
|
|
|
if (hRes)
|
|
{
|
|
// load mosaic bitmap
|
|
strTmpFileName = TEXT("IDR_MOSAIC_BMP");
|
|
|
|
hr = LoadPalette(strTmpFileName, hRes, &m_hMosaicPAL);
|
|
|
|
if(FAILED(hr)){
|
|
|
|
m_fLoadMosaic = false;
|
|
return(hr);
|
|
}/* end of if statement */
|
|
|
|
m_hMosaicBMP = (HBITMAP)LoadImage(hRes, strTmpFileName, IMAGE_BITMAP, 0, 0,
|
|
DIB_FLAG| LR_DEFAULTSIZE);
|
|
}
|
|
else
|
|
{
|
|
strTmpFileName = TEXT("mosaicbm.bmp");
|
|
|
|
hr = LoadPalette(strTmpFileName, hRes, &m_hMosaicPAL);
|
|
|
|
if(FAILED(hr)){
|
|
|
|
m_fLoadMosaic = false;
|
|
return(hr);
|
|
}/* end of if statement */
|
|
|
|
m_hMosaicBMP = (HBITMAP)LoadImage(hRes, strTmpFileName, IMAGE_BITMAP, 0, 0,
|
|
DIB_FLAG| LR_LOADFROMFILE);
|
|
}
|
|
|
|
if(NULL == m_hMosaicBMP)
|
|
{
|
|
hr = HRESULT_FROM_WIN32(::GetLastError());
|
|
m_fLoadMosaic = false; // do not attempt to reload the mosaic file
|
|
return hr;
|
|
}
|
|
}/* end of if statement */
|
|
|
|
return(hr);
|
|
}/* function InitilizeMosaic */
|
|
|
|
|
|
|
|
/************************************************************************/
|
|
/* Function: LoadPalette */
|
|
/* Description: Loads a palette from a bitmap. */
|
|
/************************************************************************/
|
|
HRESULT CBitmap::LoadPalette(TCHAR* strFilename, HINSTANCE hRes){
|
|
|
|
return(LoadPalette(strFilename, hRes, &m_hPal));
|
|
}/* end of function LoadPalette */
|
|
|
|
/************************************************************************/
|
|
/* Function: LoadPalette */
|
|
/* Description: Loads a palette from a bitmap. */
|
|
/************************************************************************/
|
|
HRESULT CBitmap::LoadPalette(TCHAR* strFilename, HINSTANCE hInst, HPALETTE *phPal){
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
if(NULL == phPal){
|
|
|
|
hr = E_POINTER;
|
|
return(hr);
|
|
}/* end of if statement */
|
|
|
|
if (*phPal){
|
|
|
|
::DeleteObject(*phPal);
|
|
*phPal = NULL;
|
|
}/* end of if statement */
|
|
|
|
#ifdef USE_LOADIMAGE
|
|
|
|
BITMAP bm;
|
|
|
|
// Use LoadImage() to get the image loaded into a DIBSection
|
|
HBITMAP hBitmap = (HBITMAP) ::LoadImage( hInst, strFilename, IMAGE_BITMAP, 0, 0,
|
|
LR_CREATEDIBSECTION| LR_DEFAULTSIZE | (hInst?LR_DEFAULTCOLOR:LR_LOADFROMFILE) );
|
|
|
|
if( hBitmap == NULL ){
|
|
|
|
hr = HRESULT_FROM_WIN32(::GetLastError());
|
|
return hr;
|
|
}/* end of if statement */
|
|
|
|
// Get the color depth of the DIBSection
|
|
::GetObject(hBitmap, sizeof(BITMAP), &bm );
|
|
// If the DIBSection is 256 color or less, it has a color table
|
|
if( ( bm.bmBitsPixel * bm.bmPlanes ) <= 8 ){
|
|
|
|
HDC hMemDC;
|
|
HBITMAP hOldBitmap;
|
|
RGBQUAD rgb[256];
|
|
LPLOGPALETTE pLogPal;
|
|
WORD i;
|
|
|
|
// Create a memory DC and select the DIBSection into it
|
|
hMemDC = ::CreateCompatibleDC( NULL );
|
|
hOldBitmap = (HBITMAP)::SelectObject( hMemDC, hBitmap );
|
|
// Get the DIBSection's color table
|
|
UINT ulNumEntries =::GetDIBColorTable( hMemDC, 0, 256, rgb );
|
|
// Create a palette from the color table
|
|
LPLOGPALETTE pLogPal = (LPLOGPALETTE) new BYTE[( sizeof(LOGPALETTE) + (ncolors*sizeof(PALETTEENTRY)))];
|
|
//pLogPal = (LPLOGPALETTE) malloc( sizeof(LOGPALETTE) + (ulNumEntries*sizeof(PALETTEENTRY)) );
|
|
|
|
if(NULL == pLogPal){
|
|
|
|
return(E_OUTOFMEMORY);
|
|
}/* end of if statement */
|
|
|
|
pLogPal->palVersion = 0x300;
|
|
pLogPal->palNumEntries = (WORD) ulNumEntries;
|
|
for(i=0;i<ulNumEntries;i++){
|
|
|
|
pLogPal->palPalEntry[i].peRed = rgb[i].rgbRed;
|
|
pLogPal->palPalEntry[i].peGreen = rgb[i].rgbGreen;
|
|
pLogPal->palPalEntry[i].peBlue = rgb[i].rgbBlue;
|
|
pLogPal->palPalEntry[i].peFlags = 0; /* PC_RESERVED */ /* 0 */
|
|
}/* end of for loop */
|
|
|
|
*phPal = ::CreatePalette( pLogPal );
|
|
|
|
if( *phPal == NULL ){
|
|
|
|
hr = HRESULT_FROM_WIN32(::GetLastError());
|
|
}/* end of if statement */
|
|
|
|
// Clean up
|
|
delete[] pLogPal;
|
|
::SelectObject( hMemDC, hOldBitmap );
|
|
::DeleteObject(hBitmap);
|
|
::DeleteDC( hMemDC );
|
|
}
|
|
else // It has no color table, so use a halftone palette
|
|
{
|
|
hr = S_FALSE;
|
|
}/* end of if statement */
|
|
#else
|
|
// use our internal load image so we do not duplicate the code
|
|
LoadImage(hInst, strFilename, IMAGE_BITMAP, 0, 0, (hInst?LR_DEFAULTCOLOR:LR_LOADFROMFILE), phPal);
|
|
|
|
if(NULL == *phPal){
|
|
|
|
hr = E_FAIL;
|
|
}/* end of if statement */
|
|
|
|
#endif
|
|
return(hr);
|
|
}/* end of function LoadPalette */
|
|
|
|
/************************************************************************
|
|
|
|
Lookup the rectangle coordinates of a bitmap which is subregion of
|
|
the mosaic. The list of coordinates and associated names are compiled
|
|
at the same time as the mosaic bitmap.
|
|
|
|
*************************************************************************/
|
|
|
|
BOOL CBitmap::LookupBitmapRect(LPTSTR szName, LPRECT rect)
|
|
{
|
|
USES_CONVERSION;
|
|
char *strIDR = T2A(szName);
|
|
|
|
BmpRectRef *p = gBmpRectList;
|
|
while (p->strIDR)
|
|
{
|
|
if (strcmp(p->strIDR, strIDR) == 0)
|
|
{
|
|
*rect = p->rect;
|
|
return TRUE;
|
|
}
|
|
|
|
p++;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
/* Function: LoadImage */
|
|
/* Description: Either uses our load image or the OS LoadImage */
|
|
/*************************************************************************/
|
|
HANDLE CBitmap::LoadImage(HINSTANCE hInst, LPCTSTR lpszName, UINT uType,
|
|
int cxDesired, int cyDesired, UINT fuLoad,
|
|
HPALETTE *phPal){
|
|
|
|
HANDLE hBitmap = NULL;
|
|
HGLOBAL hBmpFile = NULL;
|
|
HANDLE hFile = NULL;
|
|
BYTE* lpCurrent = NULL;
|
|
BYTE* lpDelete = NULL;
|
|
|
|
try {
|
|
#ifdef USE_LOADIMAGE
|
|
hBitmap = ::LoadImage(hInst, lpszName, uType, cxDesired, cyDesired,
|
|
fuLoad);
|
|
#else
|
|
bool fPaletteOnly = false;
|
|
|
|
if(NULL != phPal){
|
|
|
|
fPaletteOnly = true;
|
|
*phPal = NULL;
|
|
}/* end of if statement */
|
|
|
|
UINT ncolors = 0;
|
|
DWORD dwBitsSize = 0;
|
|
DWORD dwOffset = 0;
|
|
|
|
if(fuLoad & LR_LOADFROMFILE){
|
|
|
|
hFile = ::CreateFile(
|
|
lpszName, // pointer to name of the file
|
|
GENERIC_READ, // access (read-write) mode
|
|
FILE_SHARE_READ, // share mode
|
|
NULL, // pointer to security descriptor
|
|
OPEN_EXISTING, // how to create
|
|
FILE_ATTRIBUTE_NORMAL, // file attributes
|
|
NULL // handle to file with attributes to copy
|
|
);
|
|
|
|
if(hFile == INVALID_HANDLE_VALUE){
|
|
#if _DEBUG
|
|
if(!fPaletteOnly){
|
|
|
|
TCHAR strBuffer[MAX_PATH + 25];
|
|
wsprintf(strBuffer, TEXT("Failed to download %s"), lpszName);
|
|
::MessageBox(::GetFocus(), strBuffer, TEXT("Error"), MB_OK);
|
|
}/* end of if statement */
|
|
#endif
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
dwBitsSize = GetFileSize(hFile,NULL);
|
|
|
|
if(0 >= dwBitsSize){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
BITMAPFILEHEADER bmfHeader;
|
|
DWORD nBytesRead;
|
|
|
|
if(! ReadFile(hFile, (LPSTR)&bmfHeader, sizeof(bmfHeader), &nBytesRead, NULL)){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
if(sizeof(bmfHeader) != nBytesRead){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
if (bmfHeader.bfType != DIB_HEADER_MARKER){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
dwBitsSize -= sizeof(BITMAPFILEHEADER);
|
|
|
|
lpCurrent = lpDelete = new BYTE[dwBitsSize];
|
|
|
|
if(NULL == lpDelete){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw(NULL);
|
|
}/* end of if stament */
|
|
|
|
if(!ReadFile(hFile, (LPSTR)lpCurrent, dwBitsSize, &nBytesRead, NULL)){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
if(nBytesRead != dwBitsSize){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
::CloseHandle(hFile);
|
|
hFile = NULL;
|
|
}
|
|
else {
|
|
// loading from resources
|
|
|
|
// Find the Bitmap
|
|
HRSRC hRes = ::FindResource(hInst, lpszName, RT_BITMAP);
|
|
if (!hRes){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
// Load the BMP from the resource file.
|
|
hBmpFile = ::LoadResource(hInst, hRes);
|
|
if ((!hBmpFile)){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
dwBitsSize = ::SizeofResource(hInst, hRes);
|
|
|
|
// copy out the appropriate info from the bitmap
|
|
lpCurrent = (BYTE *)::LockResource(hBmpFile);
|
|
}/* end of if statement */
|
|
|
|
|
|
// The BITMAPFILEHEADER is striped for us, so we just start with a BITMAPINFOHEADER
|
|
BITMAPINFOHEADER* lpbmih = (BITMAPINFOHEADER *)lpCurrent;
|
|
lpCurrent += sizeof(BITMAPINFOHEADER);
|
|
dwOffset = sizeof(BITMAPINFOHEADER);
|
|
|
|
// Compute some usefull information from the bitmap
|
|
if (lpbmih->biPlanes != 1){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
if ( lpbmih->biBitCount != 1
|
|
&& lpbmih->biBitCount != 4
|
|
&& lpbmih->biBitCount != 8
|
|
&& lpbmih->biBitCount != 16
|
|
&& lpbmih->biBitCount != 24
|
|
&& lpbmih->biBitCount != 32){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
if (lpbmih->biBitCount <= 8){
|
|
|
|
ncolors = 1 << lpbmih->biBitCount;
|
|
|
|
if (lpbmih->biClrUsed > 0 && lpbmih->biClrUsed < ncolors){
|
|
|
|
ncolors = lpbmih->biClrUsed;
|
|
}/* end of if statement */
|
|
}/* end of if statemet */
|
|
|
|
RGBQUAD* lprgb = NULL;
|
|
//HPALETTE m_hPal = NULL;
|
|
|
|
if (ncolors){
|
|
|
|
bool fLoadPalette = m_fLoadPalette || fPaletteOnly;
|
|
|
|
if(fLoadPalette){
|
|
|
|
WORD i;
|
|
LPLOGPALETTE pLogPal = (LPLOGPALETTE) new BYTE[( sizeof(LOGPALETTE) + (ncolors*sizeof(PALETTEENTRY)))];
|
|
|
|
if(NULL == pLogPal){
|
|
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
pLogPal->palVersion = 0x300;
|
|
pLogPal->palNumEntries = (WORD) ncolors;
|
|
|
|
lprgb = (RGBQUAD *)lpCurrent;
|
|
|
|
for(i=0;i<ncolors;i++){
|
|
|
|
pLogPal->palPalEntry[i].peRed = lprgb[i].rgbRed;
|
|
pLogPal->palPalEntry[i].peGreen = lprgb[i].rgbGreen;
|
|
pLogPal->palPalEntry[i].peBlue = lprgb[i].rgbBlue;
|
|
pLogPal->palPalEntry[i].peFlags = 0; /* PC_RESERVED */ /* 0 */
|
|
}/* end of for loop */
|
|
|
|
if(!fPaletteOnly){
|
|
|
|
m_hPal = ::CreatePalette( pLogPal );
|
|
}
|
|
else {
|
|
|
|
*phPal = ::CreatePalette( pLogPal );
|
|
}/* end of if statement */
|
|
|
|
// Clean up
|
|
delete[] pLogPal;
|
|
}/* end of if statement */
|
|
|
|
// here is the place to load up palette more eficiently
|
|
lpCurrent += ncolors * sizeof(RGBQUAD);
|
|
dwOffset += ncolors * sizeof(RGBQUAD);
|
|
}/* end of if statement */
|
|
|
|
if(!fPaletteOnly){
|
|
|
|
BYTE* pBits = NULL;
|
|
|
|
typedef struct tagBITMAPINFOMAX {
|
|
BITMAPINFOHEADER bmiHeader;
|
|
RGBQUAD bmiColors[256];
|
|
} BITMAPINFOMAX;
|
|
|
|
|
|
BITMAPINFOMAX bmi; // temporary bitmap info header so we can modify it a bit
|
|
::CopyMemory(&bmi, lpbmih, sizeof(BITMAPINFOHEADER) + ncolors * sizeof(RGBQUAD));
|
|
|
|
DWORD dwCompression = lpbmih->biCompression;
|
|
|
|
bmi.bmiHeader.biCompression = BI_RGB; // DIB Section does not like RLE
|
|
//bmi.bmiHeader.biBitCount = 32;
|
|
|
|
// update to DIB_RGB_COLORS or DIB_PAL_COLORS Colors
|
|
HDC hdcScreen = ::GetDC(NULL);
|
|
|
|
hBitmap = ::CreateDIBSection(hdcScreen, (BITMAPINFO*)&bmi, DIB_RGB_COLORS, (LPVOID*) &pBits, NULL, 0);
|
|
//hBitmap = ::CreateDIBSection(hdc, (BITMAPINFO*)lpbmih, DIB_RGB_COLORS, (LPVOID*) &pBits, NULL, 0);
|
|
|
|
if(hBitmap){
|
|
|
|
// now use the orginal bmih
|
|
::SetDIBits(hdcScreen, (HBITMAP) hBitmap, 0, lpbmih->biHeight, lpCurrent, (BITMAPINFO*)lpbmih, DIB_RGB_COLORS);
|
|
}
|
|
else {
|
|
|
|
DWORD dwError =::GetLastError();
|
|
::ReleaseDC(NULL, hdcScreen);
|
|
ATLASSERT(FALSE);
|
|
throw (NULL);
|
|
}/* end of if statement */
|
|
|
|
::ReleaseDC(NULL, hdcScreen);
|
|
|
|
}/* end of if statement */
|
|
|
|
|
|
|
|
if(lpDelete){
|
|
|
|
delete[] lpDelete; // cleanup the bits if we had to allocate them
|
|
lpDelete = NULL;
|
|
}/* end of if statement */
|
|
|
|
if(hBmpFile){
|
|
|
|
UnlockResource(hBmpFile);
|
|
::FreeResource(hBmpFile);
|
|
hBmpFile = NULL;
|
|
}/* end of if statement */
|
|
}/* end of try statement */
|
|
|
|
#endif
|
|
catch(...){
|
|
|
|
if(hBmpFile){
|
|
|
|
UnlockResource(hBmpFile);
|
|
::FreeResource(hBmpFile);
|
|
}/* end of if statement */
|
|
|
|
if(hFile){
|
|
|
|
::CloseHandle(hFile);
|
|
hFile = NULL;
|
|
}/* end of if statement */
|
|
|
|
if(lpDelete){
|
|
|
|
delete[] lpDelete; // cleanup the bits if we had to allocate them
|
|
lpDelete = NULL;
|
|
}/* end of if statement */
|
|
|
|
hBitmap = NULL;
|
|
}/* end of catch statement */
|
|
|
|
return(hBitmap);
|
|
}/* end of function LoadImage */
|