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1\section{\class{wxTreeItemData}}\label{wxtreeitemdata}
2
3wxTreeItemData is some (arbitrary) user class associated with some item. The
4main advantage of having this class is that wxTreeItemData objects are
5destroyed automatically by the tree and, as this class has virtual destructor,
6it means that the memory and any other resources associated with a tree item
7will be automatically freed when it is deleted. Note that we don't use wxObject
8as the base class for wxTreeItemData because the size of this class is
9critical: in many applications, each tree leaf will have wxTreeItemData
10associated with it and the number of leaves may be quite big.
11
12Also please note that because the objects of this class are deleted by the tree
13using the operator {\tt delete}, they must always be allocated on the heap
14using {\tt new}.
15
16\wxheading{Derived from}
17
18\helpref{wxClientData}{wxclientdata}
19
20\wxheading{Include files}
21
22<wx/treectrl.h>
23
24\wxheading{Library}
25
26\helpref{wxCore}{librarieslist}
27
28\wxheading{See also}
29
30\helpref{wxTreeCtrl}{wxtreectrl}
31
32\latexignore{\rtfignore{\wxheading{Members}}}
33
34\membersection{wxTreeItemData::wxTreeItemData}\label{wxtreeitemdatactor}
35
36\func{}{wxTreeItemData}{\void}
37
38Default constructor.
39
40\pythonnote{The wxPython version of this constructor optionally
41accepts any Python object as a parameter. This object is then
42associated with the tree item using the wxTreeItemData as a
43container.
44
45In addition, the following methods are added in wxPython for accessing
46the object:
47
48\indented{2cm}{\begin{twocollist}\itemsep=0pt
49\twocolitem{{\bf GetData()}}{Returns a reference to the Python Object}
50\twocolitem{{\bf SetData(obj)}}{Associates a new Python Object with the
51wxTreeItemData}
52\end{twocollist}}
53}
54
55\perlnote{In wxPerl the constructor accepts as parameter an optional scalar,
56 and stores it as client data. You may retrieve this data by calling
57 {\bf GetData()}, and set it by calling {\bf SetData( data ).}
58}
59
60\membersection{wxTreeItemData::\destruct{wxTreeItemData}}\label{wxtreeitemdatadtor}
61
62\func{void}{\destruct{wxTreeItemData}}{\void}
63
64Virtual destructor.
65
66\membersection{wxTreeItemData::GetId}\label{wxtreeitemdatagetid}
67
68\func{const wxTreeItemId\&}{GetId}{\void}
69
70Returns the item associated with this node.
71
72\membersection{wxTreeItemData::SetId}\label{wxtreeitemdatasetid}
73
74\func{void}{SetId}{\param{const wxTreeItemId\&}{ id}}
75
76Sets the item associated with this node.
77
78