Type Alias CMBitmapCallBackProcPtr 

pub type CMBitmapCallBackProcPtr = Option<unsafe extern "C" fn(progress: SInt32, refCon: *mut c_void) -> Boolean>;

Apple SDK type alias CMBitmapCallBackProcPtr.

Aliased Type

pub enum CMBitmapCallBackProcPtr {
    None,
    Some(unsafe extern "C" fn(i32, *mut c_void) -> u8),
}

Variants

None

No value.

Some(unsafe extern "C" fn(i32, *mut c_void) -> u8)

Some value of type T.