Vista - Render WPF Pages to Images

Is there any way to render WPF pages to images, just like mem dc in GDI
or Graphics(&Bitmap(...)) in GDI+ ?

Thanks very much.

You want to use a RenderTargetBitmap which takes any FrameworkElement...here
is a code snippet:

private Brush CreateBrushFromUIElementWithBitmap(UIElement element,
BrushMappingMode viewboxUnits, Rect viewbox, BrushMappingMode viewportUnits,
Rect viewport)
{
FrameworkElement fe = element as FrameworkElement;
if (fe == null)
return null;

//Snap the current visual of "this" to a bitmap to be used in 3d
animation
RenderTargetBitmap bitmapImage = new
RenderTargetBitmap((int)fe.ActualWidth, (int)fe.ActualHeight, 96, 96,
PixelFormats.Pbgra32);
bitmapImage.Render(element);

ImageBrush imageBrush = new ImageBrush();
imageBrush.ImageSource = bitmapImage;

imageBrush.ViewboxUnits = viewboxUnits;
imageBrush.Viewbox = viewbox;
imageBrush.ViewportUnits = viewportUnits;
imageBrush.Viewport = viewport;

return imageBrush as Brush;
}


If you want to save the image as a file, you can do something like this:

_Encoder = new BmpBitmapEncoder();
RenderTargetBitmap bitmapImage = new
RenderTargetBitmap((int)this.ActualWidth, (int)this.ActualHeight, 96, 96,
PixelFormats.Pbgra32);
bitmapImage.Render(element);

_Encoder.Frames.Add(BitmapFrame.Create(bitmapImage));
FileStream stream = new FileStream(_Path, FileMode.Create);
_Encoder.Save(stream);
stream.Flush();
stream.Close();


"liubin.net@gmail.com" wrote:

> Is there any way to render WPF pages to images, just like mem dc in GDI
> or Graphics(&Bitmap(...)) in GDI+ ?
>
> Thanks very much.
>
>