static Bitmap Win32CaptureDesktop()
{
SIZE size;
IntPtr hBitmap;
IntPtr hDC = Win32API.GetDC(Win32API.GetDesktopWindow());
IntPtr hMemDC = GDIAPI.CreateCompatibleDC(hDC);
size.cx = Win32API.GetSystemMetrics
(Win32API.SM_CXSCREEN);
size.cy = Win32API.GetSystemMetrics
(Win32API.SM_CYSCREEN);
hBitmap = GDIAPI.CreateCompatibleBitmap(hDC, size.cx, size.cy);
if (hBitmap != IntPtr.Zero)
{
IntPtr hOld = (IntPtr)GDIAPI.SelectObject
(hMemDC, hBitmap);
GDIAPI.BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC,
0, 0, GDIAPI.SRCCOPY);
GDIAPI.SelectObject(hMemDC, hOld);
GDIAPI.DeleteDC(hMemDC);
Win32API.ReleaseDC(Win32API.GetDesktopWindow(), hDC);
Bitmap bmp = System.Drawing.Image.FromHbitmap(hBitmap);
GDIAPI.DeleteObject(hBitmap);
GC.Collect();
return(bmp);
}
return(null);
}
public static long DeleteObject(System.IntPtr value)
{
return(GDIAPI.DeleteObject(value));
}