///////////////////////////////////////////////////////////////////////////////// Name:        ole/dropsrc.h// Purpose:     declaration of the wxDropSource class// Author:      Vadim Zeitlin// Modified by:// Created:     06.03.98// RCS-ID:      $Id: dropsrc.h,v 1.22 2005/09/23 12:50:23 MR Exp $// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>// Licence:     wxWindows licence///////////////////////////////////////////////////////////////////////////////#ifndef   _WX_OLEDROPSRC_H#define   _WX_OLEDROPSRC_H#if wxUSE_DRAG_AND_DROP// ----------------------------------------------------------------------------// forward declarations// ----------------------------------------------------------------------------class wxIDropSource;class WXDLLEXPORT wxDataObject;class WXDLLEXPORT wxWindow;// ----------------------------------------------------------------------------// macros// ----------------------------------------------------------------------------// this macro may be used instead for wxDropSource ctor arguments: it will use// the cursor 'name' from the resources under MSW, but will expand to// something else under GTK. If you don't use it, you will have to use #ifdef// in the application code.#define wxDROP_ICON(name)   wxCursor(_T(#name))// ----------------------------------------------------------------------------// wxDropSource is used to start the drag-&-drop operation on associated// wxDataObject object. It's responsible for giving UI feedback while dragging.// ----------------------------------------------------------------------------class WXDLLEXPORT wxDropSource : public wxDropSourceBase{public:    // ctors: if you use default ctor you must call SetData() later!    //    // NB: the "wxWindow *win" parameter is unused and is here only for wxGTK    //     compatibility, as well as both icon parameters    wxDropSource(wxWindow *win = NULL,                 const wxCursor &cursorCopy = wxNullCursor,                 const wxCursor &cursorMove = wxNullCursor,                 const wxCursor &cursorStop = wxNullCursor);    wxDropSource(wxDataObject& data,                 wxWindow *win = NULL,                 const wxCursor &cursorCopy = wxNullCursor,                 const wxCursor &cursorMove = wxNullCursor,                 const wxCursor &cursorStop = wxNullCursor);    virtual ~wxDropSource();    // do it (call this in response to a mouse button press, for example)    // params: if bAllowMove is false, data can be only copied    virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);    // overridable: you may give some custom UI feedback during d&d operation    // in this function (it's called on each mouse move, so it shouldn't be    // too slow). Just return false if you want default feedback.    virtual bool GiveFeedback(wxDragResult effect);protected:    void Init();private:    wxIDropSource *m_pIDropSource;  // the pointer to COM interface    DECLARE_NO_COPY_CLASS(wxDropSource)};#endif  //wxUSE_DRAG_AND_DROP#endif  //_WX_OLEDROPSRC_H