Type Alias windows_sys::Win32::UI::WindowsAndMessaging::MSGBOXCALLBACK

pub type MSGBOXCALLBACK = Option<unsafe extern "system" fn(lphelpinfo: *mut HELPINFO)>;

Required features: "Win32_Foundation", "Win32_UI_Shell"

Aliased Type

enum MSGBOXCALLBACK {
    None,
    Some(unsafe extern "system" fn(_: *mut HELPINFO)),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: *mut HELPINFO))

Some value of type T.