Type Alias DRMCALLBACK
pub type DRMCALLBACK = Option<unsafe extern "system" fn(param0: DRM_STATUS_MSG, param1: HRESULT, param2: *mut c_void, param3: *mut c_void) -> HRESULT>;Aliased Type§
enum DRMCALLBACK {
None,
Some(unsafe extern "system" fn(_: DRM_STATUS_MSG, _: HRESULT, _: *mut c_void, _: *mut c_void) -> HRESULT),
}