Function ILCombine
pub unsafe fn ILCombine(
    pidl1: Option<*const ITEMIDLIST>,
    pidl2: Option<*const ITEMIDLIST>,
) -> *mut ITEMIDLISTpub unsafe fn ILCombine(
    pidl1: Option<*const ITEMIDLIST>,
    pidl2: Option<*const ITEMIDLIST>,
) -> *mut ITEMIDLIST