Type Alias VipsImageMapFn

pub type VipsImageMapFn = Option<unsafe extern "C" fn(image: *mut VipsImage, name: *const c_char, value: *mut GValue, a: *mut c_void) -> *mut c_void>;

Aliased Type

pub enum VipsImageMapFn {
    None,
    Some(unsafe extern "C" fn(*mut _VipsImage, *const i8, *mut _GValue, *mut c_void) -> *mut c_void),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut _VipsImage, *const i8, *mut _GValue, *mut c_void) -> *mut c_void)

Some value of type T.