windows_sys::Win32::UI::Magnification

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§

enum MagImageScalingCallback {
    None,
    Some(unsafe extern "system" fn(*mut c_void, *mut c_void, MAGIMAGEHEADER, *mut c_void, MAGIMAGEHEADER, RECT, RECT, *mut c_void) -> i32),
}

Variants§

§1.0.0

None

No value.

§1.0.0

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

Some value of type T.