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;
}
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;
}
