Type Alias windows::Win32::UI::Shell::LPFNVIEWCALLBACK

pub type LPFNVIEWCALLBACK = Option<unsafe extern "system" fn(psvouter: Option<IShellView>, psf: Option<IShellFolder>, hwndmain: HWND, umsg: u32, wparam: WPARAM, lparam: LPARAM) -> HRESULT>;

Aliased Type

enum LPFNVIEWCALLBACK {
    None,
    Some(unsafe extern "system" fn(_: Option<IShellView>, _: Option<IShellFolder>, _: HWND, _: u32, _: WPARAM, _: LPARAM) -> HRESULT),
}

Variants

None

No value.

Some(unsafe extern "system" fn(_: Option<IShellView>, _: Option<IShellFolder>, _: HWND, _: u32, _: WPARAM, _: LPARAM) -> HRESULT)

Some value of type T.