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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{See also}
25
26\helpref{wxTreeCtrl}{wxtreectrl}
27
28\latexignore{\rtfignore{\wxheading{Members}}}
29
30\membersection{wxTreeItemData::wxTreeItemData}\label{wxtreeitemdatactor}
31
32\func{}{wxTreeItemData}{\void}
33
34Default constructor.
35
36\pythonnote{The wxPython version of this constructor optionally
37accepts any Python object as a parameter. This object is then
38associated with the tree item using the wxTreeItemData as a
39container.
40
41In addition, the following methods are added in wxPython for accessing
42the object:
43
44\indented{2cm}{\begin{twocollist}\itemsep=0pt
45\twocolitem{{\bf GetData()}}{Returns a reference to the Python Object}
46\twocolitem{{\bf SetData(obj)}}{Associates a new Python Object with the
47wxTreeItemData}
48\end{twocollist}}
49}
50
51\perlnote{In wxPerl the constructor accepts as parameter an optional scalar,
52 and stores it as client data. You may retrieve this data by calling
53 {\bf GetData()}, and set it by calling {\bf SetData( data ).}
54}
55
56\membersection{wxTreeItemData::\destruct{wxTreeItemData}}\label{wxtreeitemdatadtor}
57
58\func{void}{\destruct{wxTreeItemData}}{\void}
59
60Virtual destructor.
61
62\membersection{wxTreeItemData::GetId}\label{wxtreeitemdatagetid}
63
64\func{const wxTreeItemId\&}{GetId}{\void}
65
66Returns the item associated with this node.
67
68\membersection{wxTreeItemData::SetId}\label{wxtreeitemdatasetid}
69
70\func{void}{SetId}{\param{const wxTreeItemId\&}{ id}}
71
72Sets the item associated with this node.
73
74