case WM_COMMAND:
	if ( HIWORD(wParam) == LBN_DBLCLK ) {
		nIdx = (int)ListBox_GetCaretIndex( (HWND)lParam );
		ListBox_GetText( (HWND)lParam, nIdx, Buffer);
		SetWindowText( GetDlgItem( hDlg, IDC_EDIT ), Buffer );
	}

if( LOWORD(wParam) == IDC_KENSU ) {
	nCount = (int)ListBox_GetCount( GetDlgItem( hDlg, IDC_LIST ) );
	wsprintf( Buffer, "%d", nCount );
	SetWindowText( GetDlgItem( hDlg, IDC_COUNT ), Buffer );
	return TRUE;
}

if( LOWORD(wParam) == IDC_TOP ) {
	nCount = (int)ListBox_GetTopIndex( GetDlgItem( hDlg, IDC_LIST ) );
	wsprintf( Buffer, "%d", nCount );
	SetWindowText( GetDlgItem( hDlg, IDC_COUNT ), Buffer );
	return TRUE;
}