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<tr><td><p align="center"><font color="#FF0000">如何实现对话框的拖放?</font></td></tr>
<tr><td><p>
</Br>
我有一个对话框程序，想让它实现拖放。但无论用OnDrag或OnDrop等等，所有的的消息都发送给CView类而不是CDialog类，为什么？<Br>
</Br>
你应该使用COleDropTarget类，试一下这些：<Br>
</Br>
class CMyOleDropTarget: public COleDropTarget<Br>
{<Br>
protected:<Br>
virtual DROPEFFECT OnDragEnter( CWnd* pWnd, COleDataObject*<Br>
pDataObject, DWORD dwKeyState, CPoint point )<Br>
{<Br>
TRACE( "DRAG Enter\n" );<Br>
return DROPEFFECT_MOVE;<Br>
};<Br>
</Br>
virtual DROPEFFECT OnDragOver( CWnd* pWnd, COleDataObject*<Br>
pDataObject, DWORD dwKeyState, CPoint point )<Br>
{<Br>
TRACE( "DRAG Over\n" );<Br>
return DROPEFFECT_MOVE;<Br>
};<Br>
};<Br>
</Br>
CMyOleDropTarget DropTarget;<Br>
</Br>
BOOL CDlgDlg::OnInitDialog()<Br>
{<Br>
CDialog::OnInitDialog();<Br>
</Br>
DropTarget.Register( this );<Br>
</Br>
不要忘记调用AfxOleInit()<Br>
BOOL CDlgApp::InitInstance()<Br>
{<Br>
AfxEnableControlContainer();<Br>
AfxOleInit();<Br>
</Br>
}<Br>
</Br>
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