8ee9d6182c
2. fixed assert failure in wxMSW::wxListBox 3. wxFileHistory automatically deletes non existinf files from menu 4. wxDropTarget coordinates are client (and not screen) under MSW too 5. wxConvertBitmapToDib and vice versa seem to work! 6. client data field if filled by wxListBox and wxChoice and it's also deleted (this just wasn't done before!) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4153 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: ole/droptgt.h
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// Purpose: declaration of the wxDropTarget class
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 06.03.98
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_OLEDROPTGT_H
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#define _WX_OLEDROPTGT_H
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#ifdef __GNUG__
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#pragma interface "droptgt.h"
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#endif
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#if !wxUSE_DRAG_AND_DROP
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#error "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!"
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#endif //WX_DRAG_DROP
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// ----------------------------------------------------------------------------
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// forward declarations
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// ----------------------------------------------------------------------------
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class wxIDropTarget;
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struct IDataObject;
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// ----------------------------------------------------------------------------
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// An instance of the class wxDropTarget may be associated with any wxWindow
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// derived object via SetDropTarget() function. If this is done, the virtual
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// methods of wxDropTarget are called when something is dropped on the window.
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//
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// Note that wxDropTarget is an abstract base class (ABC) and you should derive
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// your own class from it implementing pure virtual function in order to use it
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// (all of them, including protected ones which are called by the class itself)
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxDropTarget : public wxDropTargetBase
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{
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public:
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// ctor & dtor
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wxDropTarget(wxDataObject *dataObject = NULL);
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virtual ~wxDropTarget();
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// normally called by wxWindow on window creation/destruction, but might be
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// called `manually' as well. Register() returns true on success.
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bool Register(WXHWND hwnd);
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void Revoke(WXHWND hwnd);
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// provide default implementation for base class pure virtuals
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virtual bool OnDrop(wxCoord x, wxCoord y);
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virtual bool GetData();
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// implementation only from now on
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// -------------------------------
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// do we accept this kind of data?
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bool IsAcceptedData(IDataObject *pIDataSource) const;
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// give us the data source from IDropTarget::Drop() - this is later used by
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// GetData() when it's called from inside OnData()
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void SetDataSource(IDataObject *pIDataSource);
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private:
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// helper used by IsAcceptedData() and GetData()
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wxDataFormat GetSupportedFormat(IDataObject *pIDataSource) const;
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wxIDropTarget *m_pIDropTarget; // the pointer to our COM interface
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IDataObject *m_pIDataSource; // the pointer to the source data object
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};
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#endif //_WX_OLEDROPTGT_H
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