D3DImage.SetBackBuffer Method (D3DResourceType, IntPtr)
Assigns a Direct3D surface as the source of the back buffer.
Assembly: PresentationCore (in PresentationCore.dll)
backBufferType is not a valid D3DResourceType.
The creation parameters for backBuffer do not meet the requirements for the backBufferType-or-The backBuffer device is not valid.
Call themethod to assign a Direct3D surface to the back buffer.
Performance depends greatly on the settings of the Direct3D surface. For more information, see Performance Considerations for Direct3D9 and WPF Interoperability.
Calling the SetBackBuffer(D3DResourceType, IntPtr, Boolean) overload with the enableSoftwareFallback parameter set to false. When you call or call SetBackBuffer(D3DResourceType, IntPtr, Boolean) with the enableSoftwareFallback parameter set to false, the rendering system releases its reference to the back buffer when front buffer becomes unavailable and nothing is displayed. When the front buffer is available again, the rendering system raises the IsFrontBufferAvailableChanged event to notify your WPF application. You can create an event handler for the IsFrontBufferAvailableChanged event to restart rendering again with a valid Direct3D surface. To restart rendering, you must call .overload is identical to calling the
The following list shows the required back buffer settings for the IDirect3DSurface9 type.
D3DFMT_A8R8G8B8 or D3DFMT_X8R8G8B8
Multisampling is allowed on IDirect3DSurface9Ex surfaces only.
The following code example shows how to call the Walkthrough: Hosting Direct3D9 Content in WPF.method to assign a Direct3D surface. For more information, see
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();
Available since 3.0