对话框中按下回车后，焦点自动移动到下一个控件

捕获回车键按下消息并进行如下处理：

BOOL CxxxDlg::PreTranslateMessage(MSG* pMsg)
{
// TODO: Add your specialized code here and/or call the base class
if (pMsg->message == WM_KEYDOWN && pMsg->wParam == VK_RETURN)
{
GetNextDlgTabItem(GetFocus())->SetFocus();
return TRUE;
}

return CDialog::PreTranslateMessage(pMsg);
}