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40 lines
3.8 KiB
Markdown
40 lines
3.8 KiB
Markdown
---
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title: "How to: Paint an Area with a Video"
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ms.date: "03/30/2017"
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dev_langs:
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- "csharp"
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- "vb"
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helpviewer_keywords:
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- "painting with a video [WPF]"
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- "video [WPF], painting with"
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- "brushes [WPF], painting with a video"
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ms.assetid: 04dd6600-4a6e-4b43-a93e-21cce7dfbcb8
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---
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# How to: Paint an Area with a Video
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This example shows how to paint an area with media. One way to paint an area with media is to use a <xref:System.Windows.Controls.MediaElement> together with a <xref:System.Windows.Media.VisualBrush>. Use the <xref:System.Windows.Controls.MediaElement> to load and play the media, and then use it to set the <xref:System.Windows.Media.VisualBrush.Visual%2A> property of the <xref:System.Windows.Media.VisualBrush>. You can then use the <xref:System.Windows.Media.VisualBrush> to paint an area with the loaded media.
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## Example
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The following example uses a <xref:System.Windows.Controls.MediaElement> and a <xref:System.Windows.Media.VisualBrush> to paint the <xref:System.Windows.Controls.TextBlock.Foreground%2A> of a <xref:System.Windows.Controls.TextBlock> control with video. This example sets the <xref:System.Windows.Controls.MediaElement.IsMuted%2A> property of the <xref:System.Windows.Controls.MediaElement> to `true` so that it produces no sound.
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[!code-csharp[Visualbrush_markup_snip#GraphicsMMVideoAsTextBackgroundInline](~/samples/snippets/csharp/VS_Snippets_Wpf/visualbrush_markup_snip/CSharp/PaintWithVideoExample.cs#graphicsmmvideoastextbackgroundinline)]
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[!code-vb[Visualbrush_markup_snip#GraphicsMMVideoAsTextBackgroundInline](~/samples/snippets/visualbasic/VS_Snippets_Wpf/visualbrush_markup_snip/visualbasic/paintwithvideoexample.vb#graphicsmmvideoastextbackgroundinline)]
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[!code-xaml[Visualbrush_markup_snip#GraphicsMMVideoAsTextBackgroundInline](~/samples/snippets/xaml/VS_Snippets_Wpf/visualbrush_markup_snip/XAML/PaintWithVideoExample.xaml#graphicsmmvideoastextbackgroundinline)]
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## Example
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Because <xref:System.Windows.Media.VisualBrush> inherits from the <xref:System.Windows.Media.TileBrush> class, it provides several tiling modes. By setting the <xref:System.Windows.Media.TileBrush.TileMode%2A> property of a <xref:System.Windows.Media.VisualBrush> to <xref:System.Windows.Media.TileMode.Tile> and by setting its <xref:System.Windows.Media.TileBrush.Viewport%2A> property to a value smaller than the area that you are painting, you can create a tiled pattern.
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The following example is identical to the previous example, except that the <xref:System.Windows.Media.VisualBrush> generates a pattern from the video.
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[!code-csharp[Visualbrush_markup_snip#GraphicsMMVideoAsTextBackgroundTiledInline](~/samples/snippets/csharp/VS_Snippets_Wpf/visualbrush_markup_snip/CSharp/PaintWithVideoExample.cs#graphicsmmvideoastextbackgroundtiledinline)]
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[!code-vb[Visualbrush_markup_snip#GraphicsMMVideoAsTextBackgroundTiledInline](~/samples/snippets/visualbasic/VS_Snippets_Wpf/visualbrush_markup_snip/visualbasic/paintwithvideoexample.vb#graphicsmmvideoastextbackgroundtiledinline)]
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[!code-xaml[Visualbrush_markup_snip#GraphicsMMVideoAsTextBackgroundTiledInline](~/samples/snippets/xaml/VS_Snippets_Wpf/visualbrush_markup_snip/XAML/PaintWithVideoExample.xaml#graphicsmmvideoastextbackgroundtiledinline)]
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For information about how to add a content file, such as a media file, to your application, see [WPF Application Resource, Content, and Data Files](../app-development/wpf-application-resource-content-and-data-files.md). When you add a media file, you must add it as a content file, not as a resource file.
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## See also
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- <xref:System.Windows.Media.VisualBrush>
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- [Painting with Images, Drawings, and Visuals](painting-with-images-drawings-and-visuals.md)
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- [TileBrush Overview](tilebrush-overview.md)
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- [Multimedia Overview](multimedia-overview.md)
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