Type Definition windows_sys::Win32::UI::Magnification::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>;

Required features: "Win32_UI_Magnification", "Win32_Foundation", "Win32_Graphics_Gdi"