subject_55156.htm

vc

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序号：55156 发表者：莹莹菜 发表日期：2003-10-07 11:14:45
<br>主题：学习VC整整3星期了，苦闷啊！！！
<br>内容：书上说是相当容易的问题，可是我还不知道怎么回事呀！！！苦闷啊！！！<BR>void CMainFrame::OnSelChangeWidth()<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;// Get the new combo selection<BR>&nbsp;&nbsp;&nbsp;&nbsp;int nIndex = m_ctlWidth.GetCurSel();<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (nIndex == CB_ERR)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;// Get the active document<BR>&nbsp;&nbsp;&nbsp;&nbsp;&lt;big&gt;CToolbarDoc* pDoc = (CToolbarDoc*)GetActiveDocument();&lt;/big&gt;<BR>&nbsp;&nbsp;&nbsp;&nbsp;// Do we have a valid document?<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (pDoc)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Set the new drawing width<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pDoc-&gt;SetWidth(nIndex);<BR>}<BR><BR>E:\VC\Toolbar\MainFrm.cpp(344) : error C2065: 'CToolbarDoc' : undeclared identifier<BR>E:\VC\Toolbar\MainFrm.cpp(344) : error C2065: 'pDoc' : undeclared identifier<BR>E:\VC\Toolbar\MainFrm.cpp(344) : error C2059: syntax error : ')'<BR>E:\VC\Toolbar\MainFrm.cpp(348) : error C2227: left of '-&gt;SetWidth' must point to class/struct/union<BR><BR><BR><BR>2003-10-7 11:16:36