internal static SD.Bitmap GetBitmapForTransparentWindowsFormsHost(WindowsFormsHost host)
{
WinFormsAdapter adapter = WindowsFormsHostPropertyMap.GetAdapter(host);
if (adapter == null)
{
return(null);
}
//We need to find our highest-level ancestor that's a FrameworkElement:
//if it's not a FrameworkElement, we don't know how big it is, and can't
//properly deal with it.
FrameworkElement frameworkElementAncestor = GetFrameworkElementAncestor(host);
if (frameworkElementAncestor != null)
{
RenderTargetBitmap bmp = GetBitmapForFrameworkElement(frameworkElementAncestor);
Point hostPoint = new Point(0, 0);
Point parentPoint = new Point(0, 0);
if (HostUtils.IsRotated(host))
{
//Image is upside down. Need the lower right corner of host and the
//lower right corner of the parent.
hostPoint = HostUtils.TransformToParentPoint(host, frameworkElementAncestor,
new Point(host.ActualWidth, host.ActualHeight));
parentPoint = HostUtils.TransformToParentPoint(frameworkElementAncestor, frameworkElementAncestor,
new Point(frameworkElementAncestor.ActualWidth, frameworkElementAncestor.ActualHeight));
}
else
{
//Need upper left corner of host and the upper left corner of the parent.
hostPoint = HostUtils.TransformToParentPoint(host, frameworkElementAncestor,
new Point(0, 0));
parentPoint = HostUtils.TransformToParentPoint(frameworkElementAncestor, frameworkElementAncestor,
new Point(0, 0));
}
hostPoint.Offset(-parentPoint.X, -parentPoint.Y);
return(GetBitmapFromRenderTargetBitmap(adapter, bmp, hostPoint));
}
return(null);
}
internal static SD.Bitmap GetBitmapForOpaqueWindowsFormsHost(WindowsFormsHost host, Brush brush)
{
WinFormsAdapter adapter = WindowsFormsHostPropertyMap.GetAdapter(host);
if (adapter == null)
{
return(null);
}
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawRectangle(brush, null, new Rect(0, 0, adapter.Width, adapter.Height));
drawingContext.Close();
RenderTargetBitmap bmp = GetRenderTargetBitmapForVisual(adapter.Width, adapter.Height, drawingVisual);
return(GetBitmapFromRenderTargetBitmap(adapter, bmp, new Point(0, 0)));
}