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39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
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#pragma once
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#ifndef idC4123BF1_C7A2_4DF3_AEA77895CE6309D9
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#define idC4123BF1_C7A2_4DF3_AEA77895CE6309D9
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#include <windows.h>
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#include <ole2.h>
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#include <oleidl.h>
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class DropTarget : public IDropTarget {
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public:
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IFACEMETHODIMP QueryInterface(REFIID iid, void **ppv);
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IFACEMETHODIMP_(ULONG) STDMETHODCALLTYPE AddRef(void);
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IFACEMETHODIMP_(ULONG) STDMETHODCALLTYPE Release(void);
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IFACEMETHODIMP DragOver(DWORD dwState, POINTL pt,
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DWORD *pdwEffect);
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IFACEMETHODIMP DragEnter(IDataObject *pDataObject, DWORD dwState, POINTL pt,
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DWORD *pdwEffect);
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IFACEMETHODIMP DragLeave(void);
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IFACEMETHODIMP Drop(IDataObject *pDataObject, DWORD dwState, POINTL pt,
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DWORD *pdwEffect);
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STDMETHODIMP_(BOOL) DragDropRegister(HWND hwnd, DWORD dwState=MK_LBUTTON);
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virtual DWORD OnDragEnter(POINTL point, DWORD effect, DWORD state,
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IDataObject *data);
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virtual DWORD OnDragOver(POINTL point, DWORD effect, DWORD state);
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virtual void OnDragLeave(void) {}
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virtual DWORD OnDrop(POINTL point, DWORD effect, DWORD state,
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IDataObject *data) = 0;
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protected:
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HWND m_hwnd;
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DWORD m_state;
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private:
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volatile ULONG m_ref;
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};
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#endif
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