|Microsoft DirectX 9.0|
Retrieves the currently set vertex shader.
IDirect3DVertexShader9** ppShader );
- [out, retval] Pointer to a vertex shader interface.
If the method succeeds, the return value is D3D_OK.
If ppShader is invalid, D3DERR_INVALIDCALL is returned.
This method will not return device state for a device that is created using D3DCREATE_PUREDEVICE. If you want to use this method, you must create your device with any of the other flag values in D3DCREATE.