src/lib/ecore_win32/ecore_win32_dnd_drop_target.h

   1 #ifndef __ECORE_WIN32_DND_DROP_TARGET_H__
   2 #define __ECORE_WIN32_DND_DROP_TARGET_H__
   3
   4
   5 #define WIN32_LEAN_AND_MEAN
   6 #include <windows.h>
   7 #undef WIN32_LEAN_AND_MEAN
   8 #include <ole2.h>
   9
  10 #include "Ecore_Win32.h"
  11
  12
  13 class DropTarget : public IDropTarget
  14 {
  15  private:
  16
  17    LONG                                ref_count_;
  18    HWND                                window_;
  19    bool                                allow_drop_;
  20    Ecore_Win32_Dnd_DropTarget_Callback drop_callback_;
  21    void                               *drop_callback_ptr_;
  22
  23  private: // internal helper function
  24
  25    DWORD DropEffect(DWORD grfKeyState, POINTL pt, DWORD dwAllowed);
  26    bool  QueryDataObject(IDataObject *pDataObject);
  27
  28  public: // structors
  29
  30    DropTarget(HWND hwnd, Ecore_Win32_Dnd_DropTarget_Callback callback, void *window_obj_ptr);
  31
  32 public: // IUnknown
  33
  34    HRESULT __stdcall QueryInterface(REFIID iid, void ** ppvObject);
  35    ULONG   __stdcall AddRef();
  36    ULONG   __stdcall Release();
  37
  38  public: // IDropTarget
  39
  40    HRESULT __stdcall DragEnter(IDataObject * pDataObject, DWORD grfKeyState, POINTL pt, DWORD * pdwEffect);
  41    HRESULT __stdcall DragOver(DWORD grfKeyState, POINTL pt, DWORD * pdwEffect);
  42    HRESULT __stdcall DragLeave();
  43    HRESULT __stdcall Drop(IDataObject * pDataObject, DWORD grfKeyState, POINTL pt, DWORD * pdwEffect);
  44 };
  45
  46
  47 #endif /* __ECORE_WIN32_DND_DROP_TARGET_H__ */