/// <summary>
/// Captures a screenshot of a window using Windows GDI
/// </summary>
/// <param name="handle">handle of the window to capture</param>
/// <returns>the captured window image</returns>
public static Image CaptureWithGDI(IntPtr handle)
{
FileSystem.AppendDebug("Capturing with GDI");
Rectangle windowRect;
if (Engine.conf.ActiveWindowTryCaptureChildren)
{
windowRect = new WindowRectangle(handle).CalculateWindowRectangle();
}
else
{
windowRect = NativeMethods.GetWindowRectangle(handle);
}
windowRect = NativeMethods.MaximizedWindowFix(handle, windowRect);
FileSystem.AppendDebug("Window rectangle: " + windowRect.ToString());
Image windowImage = null;
if (Engine.conf.ActiveWindowClearBackground)
{
windowImage = CaptureWindowWithTransparencyGDI(handle, windowRect);
}
if (windowImage == null)
{
using (new Freeze(handle))
{
windowImage = CaptureRectangle(windowRect);
}
if (Engine.conf.ActiveWindowCleanTransparentCorners)
{
Image result = RemoveCorners(handle, windowImage, null, windowRect);
if (result != null)
{
windowImage = result;
}
}
if (Engine.conf.ActiveWindowIncludeShadows)
{
// Draw shadow manually to be able to have shadows in every case
windowImage = GraphicsMgr.AddBorderShadow((Bitmap)windowImage, true);
}
if (Engine.conf.ShowCursor)
{
DrawCursor(windowImage, windowRect.Location);
}
}
return(windowImage);
}
/// <summary>
/// Captures a screenshot of a window using the Windows DWM
/// </summary>
/// <param name="handle">handle of the window to capture</param>
/// <returns>the captured window image</returns>
public static Image CaptureWithDWM(IntPtr handle)
{
FileSystem.AppendDebug("Capturing with DWM");
Image windowImage = null;
Bitmap redBGImage = null;
Rectangle windowRect = NativeMethods.GetWindowRectangle(handle);
windowRect = NativeMethods.MaximizedWindowFix(handle, windowRect);
if (Engine.HasAero && Engine.conf.ActiveWindowClearBackground)
{
windowImage = CaptureWindowWithTransparencyDWM(handle, windowRect, out redBGImage, Engine.conf.ActiveWindowCleanTransparentCorners);
}
if (windowImage == null)
{
FileSystem.AppendDebug("Standard capture (no transparency)");
windowImage = CaptureRectangle(windowRect);
}
if (Engine.conf.ActiveWindowCleanTransparentCorners)
{
Image result = RemoveCorners(handle, windowImage, redBGImage, windowRect);
if (result != null)
{
windowImage = result;
}
}
if (windowImage != null)
{
if (Engine.conf.ActiveWindowIncludeShadows)
{
// Draw shadow manually to be able to have shadows in every case
windowImage = GraphicsMgr.AddBorderShadow((Bitmap)windowImage, true);
Point shadowOffset = GraphicsMgr.ShadowOffset;
windowRect.X -= shadowOffset.X;
windowRect.Y -= shadowOffset.Y;
}
if (Engine.conf.ActiveWindowShowCheckers)
{
windowImage = ImageEffects.DrawCheckers(windowImage);
}
if (Engine.conf.ShowCursor)
{
DrawCursor(windowImage, windowRect.Location);
}
}
return(windowImage);
}
