msfs::sys

Function SimConnect_MenuAddSubItem

Source 
pub unsafe extern "C" fn SimConnect_MenuAddSubItem(
    hSimConnect: HANDLE,
    MenuEventID: SIMCONNECT_CLIENT_EVENT_ID,
    szMenuItem: *const c_char,
    SubMenuEventID: SIMCONNECT_CLIENT_EVENT_ID,
    dwData: DWORD,
) -> HRESULT