123
SendMessage(hWndComboBox, CB_ADDSTRING, 0, reinterpret_cast<LPARAM> (_T("Item1"))); SendMessage(hWndComboBox, CB_ADDSTRING, 0, reinterpret_cast<LPARAM> (_T("Item2"))); SendMessage(hWndComboBox, CB_ADDSTRING, 0, reinterpret_cast<LPARAM>( _T("Item3")));
ComboBox_AddString
GetLastError