Type Alias windows_sys::Win32::Media::Audio::ACMFORMATCHOOSEHOOKPROCA

pub type ACMFORMATCHOOSEHOOKPROCA = Option<unsafe extern "system" fn(hwnd: HWND, umsg: u32, wparam: WPARAM, lparam: LPARAM) -> u32>;

Required features: "Win32_Foundation"

Aliased Type

enum ACMFORMATCHOOSEHOOKPROCA {
    None,
    Some(unsafe extern "system" fn(_: isize, _: u32, _: usize, _: isize) -> u32),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: isize, _: u32, _: usize, _: isize) -> u32)

Some value of type T.