53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
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#ifndef __IDLDROP_H__
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#define __IDLDROP_H__
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typedef struct {
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DWORD dwDefEffect;
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IDataObject *pdtobj;
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POINTL pt;
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DWORD * pdwEffect;
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HKEY hkeyProgID;
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HKEY hkeyBase;
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UINT idMenu;
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UINT idCmd;
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DWORD grfKeyState;
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} DRAGDROPMENUPARAM;
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class CIDLDropTarget: public IDropTarget
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{
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public:
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CIDLDropTarget(HWND hwnd);
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HRESULT _Init(LPCITEMIDLIST pidl);
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HWND _GetWindow();
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// IUnknown
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STDMETHODIMP QueryInterface(REFIID riid, void **ppvObj);
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STDMETHODIMP_(ULONG) AddRef();
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STDMETHODIMP_(ULONG) Release();
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// IDropTarget methods.
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STDMETHODIMP DragEnter(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect);
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STDMETHODIMP DragOver(DWORD grfKeyState, POINTL pt, DWORD *pdwEffect);
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STDMETHODIMP DragLeave();
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STDMETHODIMP Drop(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect);
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protected:
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virtual ~CIDLDropTarget();
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HRESULT DragDropMenu(DWORD dwDefaultEffect, IDataObject *pdtobj, POINTL pt, DWORD *pdwEffect, HKEY hkeyProgID, HKEY hkeyBase, UINT idMenu, DWORD grfKeyState);
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HRESULT DragDropMenuEx(DRAGDROPMENUPARAM *pddm);
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private:
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LONG m_cRef;
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protected:
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HWND m_hwnd;
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LPITEMIDLIST m_pidl; // IDList to the target folder
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DWORD m_grfKeyStateLast; // for previous DragOver/Enter
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IDataObject *m_pdtobj;
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DWORD m_dwEffectLastReturned; // stashed effect that's returned by base class's dragover
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DWORD m_dwData; // DTID_*
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DWORD m_dwEffectPreferred; // if dwData & DTID_PREFERREDEFFECT
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};
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#endif
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