subject_29734.htm

一些关于vc的问答

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序号：29734 发表者：张佗辉 发表日期：2003-02-12 20:28:17
<br>主题：怎么在点击一个按钮时弹出一个下拉菜单？
<br>内容：有知道的吗？
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<font color=red>答案被接受</font><br>回复者：浪迹天涯 回复日期：2003-02-13 10:19:47
<br>内容：在那个按钮加一个消息响应函数：OnCancelrun<BR>void CPupBoxDlg::OnCancelrun() {<BR>&nbsp;&nbsp;&nbsp;&nbsp;CButton *button;<BR>&nbsp;&nbsp;&nbsp;&nbsp;button = (CButton *)GetDlgItem(IDCANCELRUN);<BR>&nbsp;&nbsp;&nbsp;&nbsp;CRect butrect;<BR>&nbsp;&nbsp;&nbsp;&nbsp;button-&gt;GetWindowRect(&amp;butrect);<BR>&nbsp;&nbsp;&nbsp;&nbsp;CMenu&nbsp;&nbsp;m_Menu;<BR>&nbsp;&nbsp;&nbsp;&nbsp;CMenu&nbsp;&nbsp;*m_pSubMenu;<BR>&nbsp;&nbsp;&nbsp;&nbsp;m_Menu.LoadMenu(IDR_MENU_RH);<BR>&nbsp;&nbsp;&nbsp;&nbsp;m_pSubMenu = m_Menu.GetSubMenu(0);<BR>&nbsp;&nbsp;&nbsp;&nbsp;CPoint pos;<BR>&nbsp;&nbsp;&nbsp;&nbsp;GetCursorPos(&amp;pos);<BR>&nbsp;&nbsp;&nbsp;&nbsp;m_pSubMenu-&gt;TrackPopupMenu(TPM_LEFTALIGN,butrect.left,butrect.bottom,this,NULL);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;m_Menu.DestroyMenu();<BR>}<BR><BR>2003-2-13 10:49:15