1 ///////////////////////////////////////////////////////////////////////////// 2 // Name: wx/gdiobj.h 3 // Purpose: wxGDIObject base header 4 // Author: Julian Smart 5 // Modified by: 6 // Created: 7 // Copyright: (c) Julian Smart 8 // RCS-ID: $Id: gdiobj.h 42211 2006-10-21 17:19:11Z SN $ 9 // Licence: wxWindows Licence 10 ///////////////////////////////////////////////////////////////////////////// 11 12 #ifndef _WX_GDIOBJ_H_BASE_ 13 #define _WX_GDIOBJ_H_BASE_ 14 15 #include "wx/object.h" 16 17 // ---------------------------------------------------------------------------- 18 // wxGDIRefData is the base class for wxXXXData structures which contain the 19 // real data for the GDI object and are shared among all wxWin objects sharing 20 // the same native GDI object 21 // ---------------------------------------------------------------------------- 22 23 class WXDLLIMPEXP_CORE wxGDIRefData: public wxObjectRefData { }; 24 25 // ---------------------------------------------------------------------------- 26 // wxGDIObject 27 // ---------------------------------------------------------------------------- 28 29 class WXDLLIMPEXP_CORE wxGDIObject: public wxObject 30 { 31 public: IsNull()32 bool IsNull() const { return m_refData == NULL; } 33 34 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__WXPALMOS__) 35 // Creates the resource RealizeResource()36 virtual bool RealizeResource() { return false; } 37 38 // Frees the resource WXUNUSED(force)39 virtual bool FreeResource(bool WXUNUSED(force) = false) { return false; } 40 IsFree()41 virtual bool IsFree() const { return false; } 42 43 // Returns handle. GetResourceHandle()44 virtual WXHANDLE GetResourceHandle() const { return 0; } 45 #endif // defined(__WXMSW__) || defined(__WXPM__) 46 47 DECLARE_DYNAMIC_CLASS(wxGDIObject) 48 }; 49 50 #endif 51 // _WX_GDIOBJ_H_BASE_ 52