HRESULT Tick(D3DVALUE d3dvalTick);
Performs the Direct3DRM system heartbeat. When this method is called, the positions of all moving frames are updated according to their current motion attributes, the scene is rendered to the current device, and relevant callback functions are called at their appropriate times. Control is returned when the rendering cycle is complete.
·Returns D3DRM_OK if successful, or an error otherwise. For a list of possible return codes, see Direct3D Retained-Mode Return Values.
d3dvalTick
Velocity and rotation step for the IDirect3DRMFrame::SetRotation and IDirect3DRMFrame::SetVelocity methods.
You can implement this method by using other Retained-Mode methods to allow more flexibility in rendering a scene.