public static Bitmap CaptureScreen()
{
int hdcSrc = User32.GetWindowDC(User32.GetDesktopWindow()), // Get a handle to the desktop window
hdcDest = GDI32.CreateCompatibleDC(hdcSrc), // Create a memory device context
hBitmap = GDI32.CreateCompatibleBitmap(hdcSrc, // Create a bitmap and place it in the memory DC
GDI32.GetDeviceCaps(hdcSrc, 8), GDI32.GetDeviceCaps(hdcSrc, 10));
// GDI32.GetDeviceCaps(hdcSrc,8) returns the width of the desktop window
// GDI32.GetDeviceCaps(hdcSrc,10) returns the height of the desktop window
GDI32.SelectObject(hdcDest, hBitmap); // Required to create a color bitmap
GDI32.BitBlt(hdcDest, 0, 0, GDI32.GetDeviceCaps(hdcSrc, 8), // Copy the on-screen image into the memory DC
GDI32.GetDeviceCaps(hdcSrc, 10), hdcSrc, 0, 0, 0x00CC0020);
Bitmap bitmapa = new Bitmap(Image.FromHbitmap(new IntPtr(hBitmap)),
Image.FromHbitmap(new IntPtr(hBitmap)).Width,
Image.FromHbitmap(new IntPtr(hBitmap)).Height);
Cleanup(hBitmap, hdcSrc, hdcDest); // Free system resources
return(bitmapa);
}
