docs/latex/wx/choice.tex

   1 \section{\class{wxChoice}}\label{wxchoice}
   2
   3 A choice item is used to select one of a list of strings. Unlike a
   4 listbox, only the selection is visible until the user pulls down the
   5 menu of choices.
   6
   7 \wxheading{Derived from}
   8
   9 \helpref{wxControlWithItems}{wxcontrolwithitems}\\
  10 \helpref{wxControl}{wxcontrol}\\
  11 \helpref{wxWindow}{wxwindow}\\
  12 \helpref{wxEvtHandler}{wxevthandler}\\
  13 \helpref{wxObject}{wxobject}
  14
  15 \wxheading{Include files}
  16
  17 <wx/choice.h>
  18
  19 \wxheading{Window styles}
  20
  21 There are no special styles for wxChoice.
  22
  23 See also \helpref{window styles overview}{windowstyles}.
  24
  25 \wxheading{Event handling}
  26
  27 \twocolwidtha{7cm}
  28 \begin{twocollist}\itemsep=0pt
  29 \twocolitem{{\bf EVT\_CHOICE(id, func)}}{Process a wxEVT\_COMMAND\_CHOICE\_SELECTED event,
  30 when an item on the list is selected.}
  31 \end{twocollist}
  32
  33 \wxheading{See also}
  34
  35 \helpref{wxListBox}{wxlistbox}, \helpref{wxComboBox}{wxcombobox},
  36 \rtfsp\helpref{wxCommandEvent}{wxcommandevent}
  37
  38 \latexignore{\rtfignore{\wxheading{Members}}}
  39
  40 \membersection{wxChoice::wxChoice}\label{wxchoicector}
  41
  42 \func{}{wxChoice}{\void}
  43
  44 Default constructor.
  45
  46 \func{}{wxChoice}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
  47 \param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
  48 \param{int}{ n}, \param{const wxString }{choices[]},\rtfsp
  49 \param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``choice"}}
  50
  51 \func{}{wxChoice}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
  52 \param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
  53 \param{const wxArrayString\& }{choices},\rtfsp
  54 \param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator}, \param{const wxString\& }{name = ``choice"}}
  55
  56 Constructor, creating and showing a choice.
  57
  58 \wxheading{Parameters}
  59
  60 \docparam{parent}{Parent window. Must not be NULL.}
  61
  62 \docparam{id}{Window identifier. A value of -1 indicates a default value.}
  63
  64 \docparam{pos}{Window position.}
  65
  66 \docparam{size}{Window size. If the default size (-1, -1) is specified then the choice is sized
  67 appropriately.}
  68
  69 \docparam{n}{Number of strings with which to initialise the choice control.}
  70
  71 \docparam{choices}{An array of strings with which to initialise the choice control.}
  72
  73 \docparam{style}{Window style. See \helpref{wxChoice}{wxchoice}.}
  74
  75 \docparam{validator}{Window validator.}
  76
  77 \docparam{name}{Window name.}
  78
  79 \wxheading{See also}
  80
  81 \helpref{wxChoice::Create}{wxchoicecreate}, \helpref{wxValidator}{wxvalidator}
  82
  83 \pythonnote{The wxChoice constructor in wxPython reduces the {\tt n}
  84 and {\tt choices} arguments are to a single argument, which is
  85 a list of strings.}
  86
  87 \perlnote{In wxPerl there is just an array reference in place of {\tt n}
  88 and {\tt choices}.}
  89
  90 \membersection{wxChoice::\destruct{wxChoice}}\label{wxchoicedtor}
  91
  92 \func{}{\destruct{wxChoice}}{\void}
  93
  94 Destructor, destroying the choice item.
  95
  96 \membersection{wxChoice::Create}\label{wxchoicecreate}
  97
  98 \func{bool}{Create}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
  99 \param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
 100 \param{int}{ n}, \param{const wxString }{choices[]},\rtfsp
 101 \param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator},\rtfsp
 102 \param{const wxString\& }{name = ``choice"}}
 103
 104 \func{bool}{Create}{\param{wxWindow *}{parent}, \param{wxWindowID}{ id},\rtfsp
 105 \param{const wxPoint\& }{pos}, \param{const wxSize\&}{ size},\rtfsp
 106 \param{const wxArrayString\& }{choices},\rtfsp
 107 \param{long}{ style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator},\rtfsp
 108 \param{const wxString\& }{name = ``choice"}}
 109
 110 Creates the choice for two-step construction. See \helpref{wxChoice::wxChoice}{wxchoicector}.
 111
 112 \membersection{wxChoice::Delete}\label{wxchoicedelete}
 113
 114 \func{void}{Delete}{\param{int }{n}}
 115
 116 Deletes the item with the given index from the control.
 117
 118 \wxheading{Parameters}
 119
 120 \docparam{n}{The item to delete.}
 121
 122 \membersection{wxChoice::GetColumns}\label{wxchoicegetcolumns}
 123
 124 \constfunc{int}{GetColumns}{\void}
 125
 126 Gets the number of columns in this choice item.
 127
 128 \wxheading{Remarks}
 129
 130 This is implemented for Motif only and always returns $1$ for the other
 131 platforms.
 132
 133 \membersection{wxChoice::SetColumns}\label{wxchoicesetcolumns}
 134
 135 \func{void}{SetColumns}{\param{int}{ n = 1}}
 136
 137 Sets the number of columns in this choice item.
 138
 139 \wxheading{Parameters}
 140
 141 \docparam{n}{Number of columns.}
 142
 143 \wxheading{Remarks}
 144
 145 This is implemented for Motif only and doesn't do anything under other
 146 platforms.
 147