Get the window through which the user controls the transition to and from full screen.
- pWindowHandle [in]
A pointer to a window handle.
Returns a code that indicates success or failure. S_OK indicates success, DXGI_ERROR_INVALID_CALL indicates pWindowHandle was passed in as NULL.
Note If you call this API in a Session 0 process, it returns DXGI_ERROR_NOT_CURRENTLY_AVAILABLE.