Type Alias windows::Win32::Graphics::DirectDraw::LPDDENUMCALLBACKW

pub type LPDDENUMCALLBACKW = Option<unsafe extern "system" fn(param0: *mut GUID, param1: PCWSTR, param2: PCWSTR, param3: *mut c_void) -> BOOL>;

Aliased Type

enum LPDDENUMCALLBACKW {
    None,
    Some(unsafe extern "system" fn(_: *mut GUID, _: PCWSTR, _: PCWSTR, _: *mut c_void) -> BOOL),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: *mut GUID, _: PCWSTR, _: PCWSTR, _: *mut c_void) -> BOOL)

Some value of type T.