wxWidgets/docs/latex/wx/choice.tex

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\section{\class{wxChoice}}\label{wxchoice}
A choice item is used to select one of a list of strings. Unlike a
listbox, only the selection is visible until the user pulls down the
menu of choices.
\wxheading{Derived from}
\helpref{wxControlWithItems}{wxcontrolwithitems}\\
\helpref{wxControl}{wxcontrol}\\
\helpref{wxWindow}{wxwindow}\\
\helpref{wxEvtHandler}{wxevthandler}\\
\helpref{wxObject}{wxobject}
\wxheading{Include files}
<wx/choice.h>
\wxheading{Window styles}
There are no special styles for wxChoice.
See also \helpref{window styles overview}{windowstyles}.
\wxheading{Event handling}
\twocolwidtha{7cm}
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf EVT\_CHOICE(id, func)}}{Process a wxEVT\_COMMAND\_CHOICE\_SELECTED event,
when an item on the list is selected.}
\end{twocollist}
\wxheading{See also}
\helpref{wxListBox}{wxlistbox}, \helpref{wxComboBox}{wxcombobox},
\rtfsp\helpref{wxCommandEvent}{wxcommandevent}
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxChoice::wxChoice}\label{wxchoicector}
\func{}{wxChoice}{\void}
Default constructor.
\func{}{wxChoice}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
\param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
\param{int}{ n}, \param{const wxString }{choices[]},\rtfsp
\param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``choice"}}
\func{}{wxChoice}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
\param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
\param{const wxArrayString\& }{choices},\rtfsp
\param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``choice"}}
Constructor, creating and showing a choice.
\wxheading{Parameters}
\docparam{parent}{Parent window. Must not be NULL.}
\docparam{id}{Window identifier. A value of -1 indicates a default value.}
\docparam{pos}{Window position.}
\docparam{size}{Window size. If the default size (-1, -1) is specified then the choice is sized
appropriately.}
\docparam{n}{Number of strings with which to initialise the choice control.}
\docparam{choices}{An array of strings with which to initialise the choice control.}
\docparam{style}{Window style. See \helpref{wxChoice}{wxchoice}.}
\docparam{validator}{Window validator.}
\docparam{name}{Window name.}
\wxheading{See also}
\helpref{wxChoice::Create}{wxchoicecreate}, \helpref{wxValidator}{wxvalidator}
\pythonnote{The wxChoice constructor in wxPython reduces the {\tt n}
and {\tt choices} arguments are to a single argument, which is
a list of strings.}
\perlnote{In wxPerl there is just an array reference in place of {\tt n}
and {\tt choices}.}
\membersection{wxChoice::\destruct{wxChoice}}\label{wxchoicedtor}
\func{}{\destruct{wxChoice}}{\void}
Destructor, destroying the choice item.
\membersection{wxChoice::Create}\label{wxchoicecreate}
\func{bool}{Create}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
\param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
\param{int}{ n}, \param{const wxString }{choices[]},\rtfsp
\param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator},\rtfsp
\param{const wxString\& }{name = ``choice"}}
\func{bool}{Create}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
\param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
\param{const wxArrayString\& }{choices},\rtfsp
\param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator},\rtfsp
\param{const wxString\& }{name = ``choice"}}
Creates the choice for two-step construction. See \helpref{wxChoice::wxChoice}{wxchoicector}.
\membersection{wxChoice::Delete}\label{wxchoicedelete}
\func{void}{Delete}{\param{int }{n}}
Deletes the item with the given index from the control.
\wxheading{Parameters}
\docparam{n}{The item to delete.}
\membersection{wxChoice::GetColumns}\label{wxchoicegetcolumns}
\constfunc{int}{GetColumns}{\void}
Gets the number of columns in this choice item.
\wxheading{Remarks}
This is implemented for Motif only and always returns $1$ for the other
platforms.
\membersection{wxChoice::SetColumns}\label{wxchoicesetcolumns}
\func{void}{SetColumns}{\param{int}{ n = 1}}
Sets the number of columns in this choice item.
\wxheading{Parameters}
\docparam{n}{Number of columns.}
\wxheading{Remarks}
This is implemented for Motif only and doesn't do anything under other
platforms.