This method of the IUserVisualCallback Interface alerts an application that supplies user-visual objects that it should execute the execute buffer. This function is application-defined.
public void callbackUserVisual(Direct3dRMUserVisual uv, IUnknown arg, int[] r, Direct3dRMDevice d, Direct3dRMViewport v);
uv | The Direct3dRMUserVisual object. |
Arg | Application-defined data passed to this callback function. |
r | An array variable that contains a value of user visual reason type:
D3DRMUSERVISUAL_CANSEE The application should set this parameter to TRUE if the user-visual object is visible in the viewport. In this case, the application uses the device specified in the v parameter. D3DRMUSERVISUAL_RENDER The application should render the user-visual element. In this case, the application uses the device specified in the d parameter. |
d | A Direct3dRMDevice object used to render the Direct3dRMUserVisual object. |
v | A Direct3dRMViewport object used to determine whether the Direct3dRMUserVisual object is visible. |
When determining the order in which to call callback functions, the system searches the objects that are highest in the hierarchy first, and then calls their callback functions in the order in which they were created.