Type Definition windows_sys::Win32::System::Mapi::LPMAPIREADMAIL

pub type LPMAPIREADMAIL = Option<unsafe extern "system" fn(lhsession: usize, uluiparam: usize, lpszmessageid: PCSTR, flflags: u32, ulreserved: u32, lppmessage: *mut *mut MapiMessage) -> u32>;

Required features: "Win32_System_Mapi"