windows::Win32::Graphics::DirectDraw

Type Alias LPDDHALVPORTCB_UPDATE

pub type LPDDHALVPORTCB_UPDATE = Option<unsafe extern "system" fn(param0: *mut DDHAL_UPDATEVPORTDATA) -> u32>;

Aliased Type§

enum LPDDHALVPORTCB_UPDATE {
    None,
    Some(unsafe extern "system" fn(_: *mut DDHAL_UPDATEVPORTDATA) -> u32),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(_: *mut DDHAL_UPDATEVPORTDATA) -> u32)

Some value of type T.