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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: dcclient.h | |
3a7fb603 | 3 | // Purpose: interface of wxClientDC and wxPaintDC |
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4 | // Author: wxWidgets team |
5 | // RCS-ID: $Id$ | |
6 | // Licence: wxWindows license | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | /** | |
10 | @class wxPaintDC | |
11 | @wxheader{dcclient.h} | |
7c913512 | 12 | |
23324ae1 | 13 | A wxPaintDC must be constructed if an application wishes to paint on the |
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14 | client area of a window from within an EVT_PAINT() event handler. This |
15 | should normally be constructed as a temporary stack object; don't store a | |
16 | wxPaintDC object. If you have an EVT_PAINT() handler, you @e must create a | |
17 | wxPaintDC object within it even if you don't actually use it. | |
7c913512 | 18 | |
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19 | Using wxPaintDC within your EVT_PAINT() handler is important because it |
20 | automatically sets the clipping area to the damaged area of the window. | |
21 | Attempts to draw outside this area do not appear. | |
7c913512 | 22 | |
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23 | To draw on a window from outside your EVT_PAINT() handler, construct a |
24 | wxClientDC object. | |
7c913512 | 25 | |
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26 | To draw on the whole window including decorations, construct a wxWindowDC |
27 | object (Windows only). | |
7c913512 | 28 | |
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29 | @library{wxcore} |
30 | @category{dc} | |
7c913512 | 31 | |
3a7fb603 | 32 | @see wxDC, wxClientDC, wxMemoryDC, wxWindowDC, wxScreenDC |
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33 | */ |
34 | class wxPaintDC : public wxWindowDC | |
35 | { | |
36 | public: | |
37 | /** | |
38 | Constructor. Pass a pointer to the window on which you wish to paint. | |
39 | */ | |
40 | wxPaintDC(wxWindow* window); | |
41 | }; | |
42 | ||
43 | ||
e54c96f1 | 44 | |
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45 | /** |
46 | @class wxClientDC | |
47 | @wxheader{dcclient.h} | |
7c913512 | 48 | |
23324ae1 | 49 | A wxClientDC must be constructed if an application wishes to paint on the |
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50 | client area of a window from outside an EVT_PAINT() handler. This should |
51 | normally be constructed as a temporary stack object; don't store a | |
52 | wxClientDC object. | |
7c913512 | 53 | |
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54 | To draw on a window from within an EVT_PAINT() handler, construct a |
55 | wxPaintDC object instead. | |
7c913512 | 56 | |
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57 | To draw on the whole window including decorations, construct a wxWindowDC |
58 | object (Windows only). | |
7c913512 | 59 | |
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60 | @library{wxcore} |
61 | @category{dc} | |
7c913512 | 62 | |
e54c96f1 | 63 | @see wxDC, wxMemoryDC, wxPaintDC, wxWindowDC, wxScreenDC |
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64 | */ |
65 | class wxClientDC : public wxWindowDC | |
66 | { | |
67 | public: | |
68 | /** | |
69 | Constructor. Pass a pointer to the window on which you wish to paint. | |
70 | */ | |
71 | wxClientDC(wxWindow* window); | |
72 | }; | |
73 | ||
74 | ||
e54c96f1 | 75 | |
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76 | /** |
77 | @class wxWindowDC | |
78 | @wxheader{dcclient.h} | |
7c913512 | 79 | |
23324ae1 | 80 | A wxWindowDC must be constructed if an application wishes to paint on the |
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81 | whole area of a window (client and decorations). This should normally be |
82 | constructed as a temporary stack object; don't store a wxWindowDC object. | |
7c913512 | 83 | |
3a7fb603 BP |
84 | To draw on a window from inside an EVT_PAINT() handler, construct a |
85 | wxPaintDC object instead. | |
7c913512 | 86 | |
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87 | To draw on the client area of a window from outside an EVT_PAINT() handler, |
88 | construct a wxClientDC object. | |
7c913512 | 89 | |
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90 | @library{wxcore} |
91 | @category{dc} | |
7c913512 | 92 | |
e54c96f1 | 93 | @see wxDC, wxMemoryDC, wxPaintDC, wxClientDC, wxScreenDC |
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94 | */ |
95 | class wxWindowDC : public wxDC | |
96 | { | |
97 | public: | |
98 | /** | |
99 | Constructor. Pass a pointer to the window on which you wish to paint. | |
100 | */ | |
101 | wxWindowDC(wxWindow* window); | |
102 | }; | |
e54c96f1 | 103 |