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IDirect3DDevice9::EndScene method

Ends a scene that was begun by calling IDirect3DDevice9::BeginScene.


HRESULT EndScene();


This method has no parameters.

Return value


If the method succeeds, the return value is D3D_OK. The method will fail with D3DERR_INVALIDCALL if IDirect3DDevice9::BeginScene is called while already in a IDirect3DDevice9::BeginScene/IDirect3DDevice9::EndScene pair. This happens only when IDirect3DDevice9::BeginScene is called twice without first calling IDirect3DDevice9::EndScene.


When this method succeeds, the scene has been queued up for rendering by the driver. This is not a synchronous method, so the scene is not guaranteed to have completed rendering when this method returns.

Applications must call IDirect3DDevice9::BeginScene before performing any rendering and must call IDirect3DDevice9::EndScene when rendering is complete and before calling IDirect3DDevice9::BeginScene again.

If IDirect3DDevice9::BeginScene fails, the device was unable to begin the scene, and there is no need to call IDirect3DDevice9::EndScene. In fact, calls to IDirect3DDevice9::EndScene will fail if the previous IDirect3DDevice9::BeginScene failed. This applies to any application that creates multiple swap chains.

There should be at most one IDirect3DDevice9::BeginScene/IDirect3DDevice9::EndScene pair between any successive calls to present (either IDirect3DDevice9::Present or IDirect3DSwapChain9::Present). IDirect3DDevice9::BeginScene should be called once before any rendering is performed, and IDirect3DDevice9::EndScene should be called once after all rendering for a frame has been submitted to the runtime. To enable maximal parallelism between the CPU and the graphics accelerator, it is advantageous to call IDirect3DDevice9::EndScene as far ahead of calling present as possible.








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