Determines whether the gamma control are enabled or not in fullscreen mode.
PRL_RESULT PrlVmCfg_IsFullscreenGammaControl( PRL_HANDLE hVmCfg, PRL_BOOL_PTR pbEnabled );
PrlApiVm.h
PRL_RESULT. Possible values:
PRL_ERR_INVALID_ARG - invalid handle or null pointer to buffer was passed.
PRL_ERR_SUCCESS - function completed successfully.