Type Alias windows::Win32::Media::Multimedia::LPMMIOPROC

pub type LPMMIOPROC = Option<unsafe extern "system" fn(lpmmioinfo: PCSTR, umsg: u32, lparam1: LPARAM, lparam2: LPARAM) -> LRESULT>;

Aliased Type

enum LPMMIOPROC {
    None,
    Some(unsafe extern "system" fn(_: PCSTR, _: u32, _: LPARAM, _: LPARAM) -> LRESULT),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: PCSTR, _: u32, _: LPARAM, _: LPARAM) -> LRESULT)

Some value of type T.