public ImageSource GetWindowImage(IntPtr hWnd, FormsDraw.Rectangle bounds)
{
using (FormsDraw.Bitmap result = new FormsDraw.Bitmap(bounds.Width, bounds.Height))
{ //creates a new Bitmap which will contain the window's image
using (FormsDraw.Graphics MemG = FormsDraw.Graphics.FromImage(result))
{ //makes a Graphics from the Bitmap whose HDC will hold the window's RAW image
IntPtr dc = MemG.GetHdc(); //gets the Bitmap's HDC
try
{
WinUtils.PrintWindow(hWnd, dc, 0);//Writes the window's image to the HDC created above
}
finally
{
MemG.ReleaseHdc(dc);
}
return(System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(result.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions()));
}
}
}
public void MakeWindow(IntPtr hWnd)
{
Image window = new Image();
window.Width = 240;
window.Height = 240;
window.Stretch = Stretch.Fill;
WinUtils.Rect rect = new WinUtils.Rect(); //makes a new Rect which will hold the target window size
WinUtils.GetWindowRect(hWnd, ref rect); //gets the target window size
FormsDraw.Rectangle bounds = new FormsDraw.Rectangle(rect.Left, rect.Top, rect.Right - rect.Left, rect.Bottom - rect.Top); //converts the rect into something usable
FormsDraw.Bitmap result = new FormsDraw.Bitmap(bounds.Width, bounds.Height); //creates a new Bitmap which will contain the window's image
FormsDraw.Graphics MemG = FormsDraw.Graphics.FromImage(result); //makes a Graphics from the Bitmap whose HDC will hold the window's RAW image
IntPtr dc = MemG.GetHdc(); //gets the Bitmap's HDC
WinUtils.PrintWindow(hWnd, dc, 0); //Writes the window's image to the HDC created above
MemG.ReleaseHdc(dc);
window.Source = WinUtils.ImageSourceFromBitmap(result);
WinMgr.Children.Add(window);//adds the PB to the FlowLayoutPanel
}