wxWidgets/docs/latex/wx/treeevt.tex

\section{\class{wxTreeEvent}}\label{wxtreeevent}

A tree event holds information about events associated with wxTreeCtrl objects.

\wxheading{Derived from}

\helpref{wxNotifyEvent}{wxnotifyevent}\\
\helpref{wxCommandEvent}{wxcommandevent}\\
\helpref{wxEvent}{wxevent}\\
\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/treectrl.h>

\wxheading{Event table macros}

To process input from a tree control, use these event handler macros to direct input to member
functions that take a wxTreeEvent argument.

\twocolwidtha{7cm}
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf EVT\_TREE\_BEGIN\_DRAG(id, func)}}{Begin dragging with the left mouse button.}
\twocolitem{{\bf EVT\_TREE\_BEGIN\_RDRAG(id, func)}}{Begin dragging with the right mouse button.}
\twocolitem{{\bf EVT\_TREE\_BEGIN\_LABEL\_EDIT(id, func)}}{Begin editing a label.}
\twocolitem{{\bf EVT\_TREE\_END\_LABEL\_EDIT(id, func)}}{Finish editing a label.}
\twocolitem{{\bf EVT\_TREE\_DELETE\_ITEM(id, func)}}{Delete an item.}
\twocolitem{{\bf EVT\_TREE\_GET\_INFO(id, func)}}{Request information from the application.}
\twocolitem{{\bf EVT\_TREE\_SET\_INFO(id, func)}}{Information is being supplied.}
\twocolitem{{\bf EVT\_TREE\_ITEM\_EXPANDED(id, func)}}{Parent has been expanded.}
\twocolitem{{\bf EVT\_TREE\_ITEM\_EXPANDING(id, func)}}{Parent is being expanded.}
\twocolitem{{\bf EVT\_TREE\_SEL\_CHANGED(id, func)}}{Selection has changed.}
\twocolitem{{\bf EVT\_TREE\_SEL\_CHANGING(id, func)}}{Selection is changing.}
\twocolitem{{\bf EVT\_TREE\_KEY\_DOWN(id, func)}}{A key has been pressed.}
\end{twocollist}%

For the EVT\_TREE\_BEGIN\_EDIT, EVT\_TREE\_END\_LABEL\_EDIT,
EVT\_TREE\_ITEM\_EXPANDING and EVT\_TREE\_SEL\_CHANGING events you may call
\helpref{Veto()}{wxnotifyeventveto} to prevent the given operation from
happening except for EVT\_TREE\_END\_LABEL\_EDIT means that the items label
will not be changed.

\wxheading{See also}

\helpref{wxTreeCtrl}{wxtreectrl}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxTreeEvent::wxTreeEvent}

\func{}{wxTreeEvent}{\param{WXTYPE }{commandType = 0}, \param{int }{id = 0}}

Constructor.

\membersection{wxTreeEvent::m\_code}

\member{int}{m\_code}

Key code if the event is a keypress event.

\membersection{wxTreeEvent::m\_itemIndex}

\member{wxTreeItem}{m\_item}

The item (valid for all events).

\membersection{wxTreeEvent::m\_oldItem}

\member{long}{m\_oldItem}

The old item index (valid for EVT\_TREE\_ITEM\_CHANGING and CHANGED events)

\membersection{wxTreeEvent::m\_pointDrag}

\member{wxPoint}{m\_pointDrag}

The position of the mouse pointer if the event is a drag event.