private static void getDisplayStatus()
{
bool fOn;
IntPtr hDC = PlatformInvokeUSER32.GetDC(PlatformInvokeUSER32.GetDesktopWindow());
if (GetDevicePowerState(hDC, out fOn))
{
Console.WriteLine("Monitor is Off.");
}
else
{
Console.WriteLine("Monitor is on.");
}
}
public static Bitmap GetDesktopImage()
{
SIZE size;
IntPtr hBitmap;
IntPtr hDC = PlatformInvokeUSER32.GetDC(PlatformInvokeUSER32.GetDesktopWindow());
IntPtr hMemDC = PlatformInvokeGDI32.CreateCompatibleDC(hDC);
size.cx = PlatformInvokeUSER32.GetSystemMetrics(PlatformInvokeUSER32.SM_CXSCREEN);
size.cy = PlatformInvokeUSER32.GetSystemMetrics(PlatformInvokeUSER32.SM_CYSCREEN);
hBitmap = PlatformInvokeGDI32.CreateCompatibleBitmap(hDC, size.cx, size.cy);
if (hBitmap != IntPtr.Zero)
{
IntPtr hOld = (IntPtr)PlatformInvokeGDI32.SelectObject(hMemDC, hBitmap);
PlatformInvokeGDI32.BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC, 0, 0, PlatformInvokeGDI32.SRCCOPY);
PlatformInvokeGDI32.SelectObject(hMemDC, hOld);
PlatformInvokeGDI32.DeleteDC(hMemDC);
PlatformInvokeUSER32.ReleaseDC(PlatformInvokeUSER32.GetDesktopWindow(), hDC);
Bitmap bmp = System.Drawing.Image.FromHbitmap(hBitmap);
PlatformInvokeGDI32.DeleteObject(hBitmap);
return(bmp);
}
return(null);
}
