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1. wxStaticBox doesn't draw over the underlying controls any more
[wxWidgets.git] / include / wx / msw / gdiobj.h
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1/////////////////////////////////////////////////////////////////////////////
2// Name: gdiobj.h
3// Purpose: wxGDIObject class: base class for other GDI classes
4// Author: Julian Smart
5// Modified by:
6// Created: 01/02/97
7// RCS-ID: $Id$
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8// Copyright: (c) Julian Smart
9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
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12#ifndef _WX_GDIOBJ_H_
13#define _WX_GDIOBJ_H_
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14
15#include "wx/object.h"
16
17#ifdef __GNUG__
18#pragma interface "gdiobj.h"
19#endif
20
21// wxGDIRefData is the reference-counted data part of a GDI object.
22// It contains another counter, m_usageCount, which counts the number
23// of times this object has been used; e.g. in SetFont, the count
24// is incremented. This is different from reference counting,
25// where only the constructors, destructors and (un)clone operations
26// affect the reference count.
27// THIS IS NOW BEING REMOVED AS REDUNDANT AND ERROR-PRONE
28
29class WXDLLEXPORT wxGDIRefData: public wxObjectRefData {
30public:
31 inline wxGDIRefData(void)
32 {
33 }
34};
35
36#define M_GDIDATA ((wxGDIRefData *)m_refData)
37
38class WXDLLEXPORT wxGDIObject: public wxObject
39{
40DECLARE_DYNAMIC_CLASS(wxGDIObject)
41 public:
42 inline wxGDIObject(void) { m_visible = FALSE; };
43 inline ~wxGDIObject(void) {};
44
45 // Creates the resource
46 virtual bool RealizeResource(void) { return FALSE; };
47
48 // Frees the resource
49 virtual bool FreeResource(bool WXUNUSED(force) = FALSE) { return FALSE; };
50
e90babdf 51 virtual bool IsFree(void) const { return FALSE; };
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52
53 inline bool IsNull(void) const { return (m_refData == 0); }
54
55 // Returns handle.
56 virtual WXHANDLE GetResourceHandle(void) { return 0; }
57
58 virtual bool GetVisible(void) { return m_visible; }
59 virtual void SetVisible(bool v) { m_visible = v; }
60
61protected:
62 bool m_visible; // Can a pointer to this object be safely taken?
63 // - only if created within FindOrCreate...
64};
65
66#endif
bbcdf8bc 67 // _WX_GDIOBJ_H_