Type Alias MagImageScalingCallback 

pub type MagImageScalingCallback = Option<unsafe extern "system" fn(hwnd: HWND, srcdata: *mut c_void, srcheader: MAGIMAGEHEADER, destdata: *mut c_void, destheader: MAGIMAGEHEADER, unclipped: RECT, clipped: RECT, dirty: HRGN) -> BOOL>;

Aliased Type

pub enum MagImageScalingCallback {
    None,
    Some(unsafe extern "system" fn(HWND, *mut c_void, MAGIMAGEHEADER, *mut c_void, MAGIMAGEHEADER, RECT, RECT, HRGN) -> BOOL),
}

Variants

None

No value.

Some(unsafe extern "system" fn(HWND, *mut c_void, MAGIMAGEHEADER, *mut c_void, MAGIMAGEHEADER, RECT, RECT, HRGN) -> BOOL)

Some value of type T.