Type Alias windows_sys::Win32::UI::Controls::PFTASKDIALOGCALLBACK

pub type PFTASKDIALOGCALLBACK = Option<unsafe extern "system" fn(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM, lprefdata: isize) -> HRESULT>;

Required features: "Win32_Foundation"

Aliased Type

enum PFTASKDIALOGCALLBACK {
    None,
    Some(unsafe extern "system" fn(_: isize, _: u32, _: usize, _: isize, _: isize) -> i32),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: isize, _: u32, _: usize, _: isize, _: isize) -> i32)

Some value of type T.