Type Alias windows_sys::Win32::Storage::Imapi::MSGCALLRELEASE

pub type MSGCALLRELEASE = Option<unsafe extern "system" fn(ulcallerdata: u32, lpmessage: IMessage)>;

Required features: "Win32_System_AddressBook"

Aliased Type

enum MSGCALLRELEASE {
    None,
    Some(unsafe extern "system" fn(_: u32, _: *mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: u32, _: *mut c_void))

Some value of type T.