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

pub enum DRMCALLBACK {
    None,
    Some(unsafe extern "system" fn(i32, i32, *mut c_void, *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "system" fn(i32, i32, *mut c_void, *mut c_void) -> i32)

Some value of type T.