Type Alias PFTASKDIALOGCALLBACK 

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

Aliased Type

pub enum PFTASKDIALOGCALLBACK {
    None,
    Some(unsafe extern "system" fn(HWND, TASKDIALOG_NOTIFICATIONS, WPARAM, LPARAM, isize) -> HRESULT),
}

Variants

None

No value.

Some(unsafe extern "system" fn(HWND, TASKDIALOG_NOTIFICATIONS, WPARAM, LPARAM, isize) -> HRESULT)

Some value of type T.