Ha! Worked it out myself. Adding the MediaElement to the Canvas makes it
visible... :-)
Sorry for the noise...
Michael Foord
http://www.ironpythoninaction.com/
Michael Foord wrote:
Hello all,
I've been experimenting with using the VideoBrush from IronPython and
Silverlight. It works fine from XAML, but the following code shows
nothing:
from System.Windows import Application
from System.Windows.Controls import Canvas
#canv = Canvas()
#Application.Current.LoadRootVisual(canv, "app.xaml")
from System.Windows.Controls import TextBlock, MediaElement
from System import Uri, UriKind
from System.Windows.Media import VideoBrush, Stretch
root = Canvas()
video = MediaElement() source = Uri('../SomeVideo.wmv', UriKind.Relative)
video.Source = source
video.Opacity = 0.0
brush = VideoBrush()
brush.Stretch = Stretch.UniformToFill
brush.SetSource(video)
t = TextBlock()
t.Text = 'Video'
t.FontSize = 120
t.Foreground = brush
root.Children.Add(t)
Application.Current.RootVisual = root
The XAML that works is:
<Canvas x:Class="System.Windows.Controls.Canvas"
xmlns="http://schemas.microsoft.com/client/2007";
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml";>
<MediaElement
x:Name="videoMediaElement"
Source="../SomeVideo.wmv" IsMuted="True"
Opacity="0.0" IsHitTestVisible="False" />
<TextBlock Canvas.Left="5" Canvas.Top="30"
FontFamily="Verdana" FontSize="120"
FontWeight="Bold" TextWrapping="Wrap"
Text="Video">
<!-- Paint the text with video. -->
<TextBlock.Foreground>
<VideoBrush SourceName="videoMediaElement"
Stretch="UniformToFill" />
</TextBlock.Foreground>
</TextBlock>
</Canvas>
Can anyone see what I'm doing wrong? (Or is this another beta bug.)
Thanks
Michael Foord
http://www.ironpythoninaction.com/
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