subject_33535.htm

一些关于vc的问答

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序号：33535 发表者：苦闷 发表日期：2003-03-21 17:42:36
<br>主题：好久没有搞vc了，
<br>内容：我想在长方形1中画出一个波形图，但是现在我想通过这种方法获得这个长方形的范围。<BR>void CItemView::OnDraw(CDC* pDC)<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;CItemDoc* pDoc = GetDocument();<BR>&nbsp;&nbsp;&nbsp;&nbsp;ASSERT_VALID(pDoc);<BR>&nbsp;&nbsp;&nbsp;&nbsp;// TODO: add draw code for native data here<BR>&nbsp;&nbsp;&nbsp;&nbsp;RECT Rect(100,100,100,100);<BR>&nbsp;&nbsp;&nbsp;&nbsp;CPen Pen(PS_SOLID,5,RGB(255,255,0));<BR>&nbsp;&nbsp;&nbsp;&nbsp;CPen* OldPen=pDC-&gt;SelectObject(&amp;Pen);<BR>&nbsp;&nbsp;&nbsp;&nbsp;pDC-&gt;Rectangle(Rect.left,Rect.top,Rect.right,Rect.bottom);<BR>&nbsp;&nbsp;&nbsp;&nbsp;pDC-&gt;SelectObject(OldPen); <BR>}但是有错误。怎么搞。<BR>error C2078: too many initializers<BR>error C2440: 'initializing' : cannot convert from 'const int' to 'struct tagRECT'<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; No constructor could take the source type, or constructor overload resolution was ambiguous<BR><BR>2003-3-21 17:43:34