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D3DImage.PixelWidth Property

Gets the width of the D3DImage, in pixels.

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

public int PixelWidth { get; }

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();

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5 SP1, 3.0 SP2

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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