Type Alias TaskDialogWndProcCallback

pub type TaskDialogWndProcCallback = Option<unsafe extern "system" fn(hwnd: HWND, msg: TASKDIALOG_NOTIFICATIONS, w_param: WPARAM, l_param: LPARAM, ref_data: *mut TaskDialogConfig) -> HRESULT>;

Aliased Type

pub enum TaskDialogWndProcCallback {
    None,
    Some(unsafe extern "system" fn(HWND, TASKDIALOG_NOTIFICATIONS, WPARAM, LPARAM, *mut TaskDialogConfig) -> HRESULT),
}

Variants

None

No value.

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

Some value of type T.