pub type LPFNPSPCALLBACKW = Option<unsafe extern "C" fn(hwnd: HWND, uMsg: UINT, ppsp: *mut _PROPSHEETPAGEW) -> UINT>;Aliased Type§
pub enum LPFNPSPCALLBACKW {
None,
Some(unsafe extern "C" fn(*mut HWND__, u32, *mut _PROPSHEETPAGEW) -> u32),
}