pub fn multi_selection_len(&self) -> usize {
        use winapi::um::winuser::{LB_GETSELCOUNT, LB_ERR};

        let handle = check_hwnd(&self.handle, NOT_BOUND, BAD_HANDLE);
        match wh::send_message(handle, LB_GETSELCOUNT, 0, 0) {
            LB_ERR => 0,
            value => value as usize
        }
    }
/// Return the number of selected item in the list box
/// Returns 0 for single select list box
Return the number of selected item in the list box
Returns 0 for single select list box
Return the number of selected item in the list box Returns 0 for single select list box
pub fn multi_selection_len(&self) -> usize {
        use winapi::um::winuser::{LB_GETSELCOUNT, LB_ERR};
        let handle = check_hwnd(&self.handle, NOT_BOUND, BAD_HANDLE);
        match wh::send_message(handle, LB_GETSELCOUNT, 0, 0) {
            LB_ERR => 0,
            value => value as usize
        }
    }
pub fn multi_selection_len ( & self ) -> usize { use winapi :: um :: winuser :: { LB_GETSELCOUNT , LB_ERR } ; let handle = check_hwnd ( & self . handle , NOT_BOUND , BAD_HANDLE ) ; match wh :: send_message ( handle , LB_GETSELCOUNT , 0 , 0 ) { LB_ERR => 0 , value => value as usize } }
Return the number of selected item in the list box
Returns 0 for single select list box
Return the number of selected item in the list box Returns 0 for single select list box
&self