static BOOL PasteBitmap(
/************************************************************************/
HWND hWindow,
LPSTR lpImageFile,
LPSTR lpMaskFile)
{
BOOL bRet;
HBITMAP hBitmap;
HPALETTE hPal;
LPBITMAPINFOHEADER lpDIB;
if ( !OpenClipboard( hWindow ) )
return( FALSE );
if ( !(hPal = (HPALETTE)GetClipboardData(CF_PALETTE)) )
hPal = lpBltScreen->hPal;
if ( !(hBitmap = (HBITMAP)GetClipboardData(CF_BITMAP)) )
{
CloseClipboard();
return( NO );
}
if ( !(lpDIB = BitmapToDIB( NULL/*hDC*/, hBitmap, hPal )) )
{
CloseClipboard();
return( NO );
}
bRet = WriteDIBClip( lpDIB, lpImageFile, lpMaskFile );
FreeUp( (LPTR)lpDIB );
CloseClipboard();
return( bRet );
}
HDIB FAR CopyScreenToDIB(LPRECT lpRect)
{
HBITMAP hBitmap; // handle to device-dependent bitmap
HPALETTE hPalette; // handle to palette
HDIB hDIB = NULL; // handle to DIB
/* get the device-dependent bitmap in lpRect by calling
* CopyScreenToBitmap and passing it the rectangle to grab
*/
hBitmap = CopyScreenToBitmap(lpRect);
/* check for a valid bitmap handle */
if (!hBitmap)
return NULL;
/* get the current palette */
hPalette = GetSystemPalette();
/* convert the bitmap to a DIB */
hDIB = BitmapToDIB(hBitmap, hPalette);
/* clean up */
DeleteObject(hPalette);
DeleteObject(hBitmap);
/* return handle to the packed-DIB */
return hDIB;
}
LRESULT CDesktopDlg::OnLButtonDblClick(UINT /*uMsg*/, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if (m_rcSelect.left != m_rcSelect.right && m_rcSelect.top != m_rcSelect.bottom)
{
CDC dcMem;
dcMem.CreateCompatibleDC(NULL);
CBitmap bitmap;
BITMAP bm;
GetObject(m_hBmpDesktop, sizeof(bm), &bm);
bm.bmWidth = m_rcSelect.Width();
bm.bmHeight = m_rcSelect.Height();
bitmap.CreateBitmapIndirect(&bm);
HBITMAP hBmpOld = dcMem.SelectBitmap(bitmap.m_hBitmap);
dcMem.StretchBlt(0,0, m_rcSelect.Width(), m_rcSelect.Height(),
m_hDcMemory, m_rcSelect.left, m_rcSelect.top,
m_rcSelect.Width(), m_rcSelect.Height(), SRCCOPY);
HBITMAP hBmp = (HBITMAP)bitmap.Detach();
dcMem.SelectBitmap(hBmpOld);
// save to the clipboard
if(::OpenClipboard(m_hWnd))
{
::EmptyClipboard();
::GdiFlush();
HANDLE hDib = NULL;
HPALETTE ghPal = NULL;
if (hBmp)
{
hDib = BitmapToDIB(hBmp, ghPal);
if (hDib)
{
HANDLE hResult = ::SetClipboardData(CF_DIB, hDib);
if (hResult == NULL)
{
// _ShowLastError();
}
}
else
{
MessageBeep(0);
}
}
::CloseClipboard();
//::EmptyClipboard();
//hDib = BitmapToDIB(m_hBitmap, ghPal);
//::SetClipboardData(CF_BITMAP, hBmp);
//::CloseClipboard();
}
EndDialog(IDOK);
}
bHandled = FALSE;
return 0;
}
BOOL CaptureWindow(HWND hwndOwner, HWND hwnd)
{
RECT rect;
HDC hdc, hdcMem, hdcOld;
HBITMAP hBmp;
HANDLE hDIB;
HPALETTE hPal;
int width, height;
int RasterCapsScrn;
int PaletteSizeScrn;
GetWindowRect(hwnd, &rect);
width = rect.right-rect.left;
height = rect.bottom-rect.top;
hdc = GetDC(0);
hdcMem = CreateCompatibleDC(hdc);
hBmp = CreateCompatibleBitmap(hdc, width, height);
hdcOld = SelectObject(hdcMem, hBmp);
//copy the screen contents
BitBlt(hdcMem, 0, 0, width, height, hdc, rect.left, rect.top, SRCCOPY);
SelectObject(hdcMem, hdcOld);
OpenClipboard(hwndOwner);
EmptyClipboard();
#ifdef SUPPORT_DIBS
//palette detection
RasterCapsScrn = GetDeviceCaps(hdc, RASTERCAPS);
PaletteSizeScrn = GetDeviceCaps(hdc, SIZEPALETTE);
if((RasterCapsScrn & RC_PALETTE) && (PaletteSizeScrn == 256))
hPal = GetSystemPalette(hdc);
else
hPal = 0;
hDIB = BitmapToDIB(hBmp, hPal);
SetClipboardData(CF_DIB, hDIB);
#endif
SetClipboardData(CF_BITMAP, hBmp);
CloseClipboard();
ReleaseDC(0, hdc);
return TRUE;
}
void SaveWindowToDIB(HWND hWnd, int nBitCount, int nCompression)
{
HBITMAP hBmp = CaptureWindow(hWnd);
if ( hBmp )
{
BITMAPINFO * pDIB = BitmapToDIB(NULL, hBmp, nBitCount, nCompression);
if ( pDIB )
{
SaveDIBToFile(NULL, pDIB, NULL);
delete [] (BYTE *) pDIB;
}
DeleteObject(hBmp);
}
}
