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1 | \section{\class{wxBitmapDataObject}}\label{wxbitmapdataobject} | |
2 | ||
3 | wxBitmapDataObject is a specialization of wxDataObject for bitmap data. It can | |
4 | be used without change to paste data into the | |
5 | \helpref{wxClipboard}{wxclipboard} or a \helpref{wxDropSource}{wxdropsource}. A | |
6 | user may wish to derive a new class from this class for providing a bitmap | |
7 | on-demand in order to minimize memory consumption when offering data in several | |
8 | formats, such as a bitmap and GIF. | |
9 | ||
10 | \pythonnote{If you wish to create a derived wxBitmapDataObject class in | |
11 | wxPython you should derive the class from wxPyBitmapDataObject | |
12 | in order to get Python-aware capabilities for the various virtual | |
13 | methods.} | |
14 | ||
15 | \wxheading{Virtual functions to override} | |
16 | ||
17 | This class may be used as is, but | |
18 | \helpref{GetBitmap}{wxbitmapdataobjectgetbitmap} may be overridden to increase | |
19 | efficiency. | |
20 | ||
21 | \wxheading{Derived from} | |
22 | ||
23 | \helpref{wxDataObjectSimple}{wxdataobjectsimple}\\ | |
24 | \helpref{wxDataObject}{wxdataobject} | |
25 | ||
26 | \wxheading{Include files} | |
27 | ||
28 | <wx/dataobj.h> | |
29 | ||
30 | \wxheading{See also} | |
31 | ||
32 | \helpref{Clipboard and drag and drop overview}{wxdndoverview}, | |
33 | \helpref{wxDataObject}{wxdataobject}, | |
34 | \helpref{wxDataObjectSimple}{wxdataobjectsimple}, | |
35 | \helpref{wxFileDataObject}{wxfiledataobject}, | |
36 | \helpref{wxTextDataObject}{wxtextdataobject}, | |
37 | \helpref{wxDataObject}{wxdataobject} | |
38 | ||
39 | \func{}{wxBitmapDataObject}{\param{const wxBitmap\& }{bitmap = wxNullBitmap}} | |
40 | ||
41 | Constructor, optionally passing a bitmap (otherwise use | |
42 | \helpref{SetBitmap}{wxbitmapdataobjectsetbitmap} later). | |
43 | ||
44 | \membersection{wxBitmapDataObject::GetBitmap}\label{wxbitmapdataobjectgetbitmap} | |
45 | ||
46 | \constfunc{virtual wxBitmap}{GetBitmap}{\void} | |
47 | ||
48 | Returns the bitmap associated with the data object. You may wish to override | |
49 | this method when offering data on-demand, but this is not required by | |
50 | wxWidgets' internals. Use this method to get data in bitmap form from | |
51 | the \helpref{wxClipboard}{wxclipboard}. | |
52 | ||
53 | \membersection{wxBitmapDataObject::SetBitmap}\label{wxbitmapdataobjectsetbitmap} | |
54 | ||
55 | \func{virtual void}{SetBitmap}{\param{const wxBitmap\& }{bitmap}} | |
56 | ||
57 | Sets the bitmap associated with the data object. This method is called when the | |
58 | data object receives data. Usually there will be no reason to override this | |
59 | function. | |
60 |