[C++知识库]MFC 回车关闭窗口改为下个控件获得焦点

当前是button就点击?return，否则??下个控件是button就点击 return，否则?下个控件获得焦点 return。

BOOL PrintAllDlg::PreTranslateMessage(MSG* pMsg)
{
	if (pMsg->message == WM_KEYDOWN && pMsg->wParam == VK_RETURN) //按下回车，当前是button，则点button reuturn。下个控件是button(2)，则点button2,否则下个控件获得焦点
	{
		CWnd *wnd = GetFocus(); //当前控件
		if (wnd != NULL)
		{
			char className[256];
			GetClassName(wnd->m_hWnd, className, sizeof(className));
			if (CString("Button") == className)
			{
				SendMessage(WM_COMMAND, wnd->GetDlgCtrlID(), (LPARAM)wnd->m_hWnd); //点击按钮
				return TRUE;
			}
		}

		CWnd *mwnd = GetNextDlgTabItem(wnd); //下个控件
		if (mwnd)
		{
			char className[256];
			GetClassName(mwnd->m_hWnd, className, sizeof(className));
			if (CString("Button") == className)
			{
				SendMessage(WM_COMMAND, mwnd->GetDlgCtrlID(), (LPARAM)mwnd->m_hWnd);
				return TRUE;
			}
			mwnd->SetFocus();
			return TRUE;
		}
	}
	return CDialogEx::PreTranslateMessage(pMsg);
}