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D3DImage.PixelWidth Property

Updated: July 2008

Gets the width of the D3DImage, in pixels.

Namespace:  System.Windows.Interop
Assembly:  PresentationCore (in PresentationCore.dll)

public int PixelWidth { get; }
You cannot set this property in XAML.

Property Value

Type: System.Int32
The width of the D3DImage, in pixels.

The value of PixelWidth can change when a new back buffer is assigned by a call to the SetBackBuffer method.

The following code example shows how to use the PixelWidth property to specify the changed region in the back buffer. For more information, see Walkthrough: Hosting Direct3D9 Content in WPF.

d3dimg.Lock();
// Repeatedly calling SetBackBuffer with the same IntPtr is  
// a no-op. There is no performance penalty.
d3dimg.SetBackBuffer(D3DResourceType.IDirect3DSurface9, pSurface);
HRESULT.Check(Render());
d3dimg.AddDirtyRect(new Int32Rect(0, 0, d3dimg.PixelWidth, d3dimg.PixelHeight));
d3dimg.Unlock();

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5 SP1, 3.0 SP2

Date

History

Reason

July 2008

Added topic for new class.

SP1 feature change.

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