39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
// UserDropTarget.h: interface for the CUserDropTarget class.
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//
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//////////////////////////////////////////////////////////////////////
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#if !defined(AFX_USERDROPTARGET_H__EEF32CBE_6C22_4920_B9DB_08DA9CD933CB__INCLUDED_)
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#define AFX_USERDROPTARGET_H__EEF32CBE_6C22_4920_B9DB_08DA9CD933CB__INCLUDED_
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#if _MSC_VER > 1000
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#pragma once
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#endif // _MSC_VER > 1000
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#define DROPM_DROP WM_USER + 1978
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class CUserDropTarget : public COleDropTarget
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{
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public:
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CUserDropTarget();
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virtual ~CUserDropTarget();
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protected:
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//处理OnDropEx消息是必须的，否则OnDrop函数不会被执行
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//当然也可以在OnDropEx函数中处理数据
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virtual DROPEFFECT OnDragEnter(CWnd* pWnd, COleDataObject* pDataObject,
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DWORD dwKeyState, CPoint point);
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virtual DROPEFFECT OnDragOver(CWnd* pWnd, COleDataObject* pDataObject,
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DWORD dwKeyState, CPoint point);
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virtual BOOL OnDrop(CWnd* pWnd, COleDataObject* pDataObject,
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DROPEFFECT dropEffect, CPoint point);
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virtual void OnDragLeave(CWnd* pWnd);
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// virtual DROPEFFECT OnDropEx(CWnd* pWnd, COleDataObject* pDataObject,
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// DROPEFFECT dropEffect, DROPEFFECT dropEffectList, CPoint point);
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public:
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//Static variable to store the window handle of source tree control
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static HWND m_shWndTreeCtrl;
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static long m_lAddressType;
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};
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#endif // !defined(AFX_USERDROPTARGET_H__EEF32CBE_6C22_4920_B9DB_08DA9CD933CB__INCLUDED_)
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