docs/latex/wx/checkbox.tex

   1 \section{\class{wxCheckBox}}\label{wxcheckbox}
   2
   3 A checkbox is a labelled box which by default is either on (checkmark is
   4 visible) or off (no checkmark). Optionally (When the wxCHK\_3STATE style flag
   5 is set) it can have a third state, called the mixed or undetermined state.
   6 Often this is used as a "Does Not Apply" state.
   7
   8 \wxheading{Derived from}
   9
  10 \helpref{wxControl}{wxcontrol}\\
  11 \helpref{wxWindow}{wxwindow}\\
  12 \helpref{wxEvtHandler}{wxevthandler}\\
  13 \helpref{wxObject}{wxobject}
  14
  15 \wxheading{Include files}
  16
  17 <wx/checkbox.h>
  18
  19 \wxheading{Window styles}
  20
  21 \twocolwidtha{7cm}
  22 \begin{twocollist}\itemsep=0pt
  23 \twocolitem{\windowstyle{wxCHK\_2STATE}}{Create a 2-state checkbox (This is the default).}
  24 \twocolitem{\windowstyle{wxCHK\_3STATE}}{Create a 3-state checkbox.}
  25 \twocolitem{\windowstyle{wxCHK\_ALLOW\_3RD\_STATE\_FOR\_USER}}{By default a user can't set a 3-state checkbox
  26 to the third state. It can only be done from code. Using this flags allows the user to set the checkbox to the third state by clicking. }
  27 \twocolitem{\windowstyle{wxALIGN\_RIGHT}}{Makes the text appear on the left of the checkbox.}
  28 \end{twocollist}
  29
  30 See also \helpref{window styles overview}{windowstyles}.
  31
  32 \wxheading{Event handling}
  33
  34 \twocolwidtha{7cm}
  35 \begin{twocollist}\itemsep=0pt
  36 \twocolitem{{\bf EVT\_CHECKBOX(id, func)}}{Process a wxEVT\_COMMAND\_CHECKBOX\_CLICKED event,
  37 when the checkbox is clicked.}
  38 \end{twocollist}
  39
  40 \wxheading{See also}
  41
  42 \helpref{wxRadioButton}{wxradiobutton}, \helpref{wxCommandEvent}{wxcommandevent}
  43
  44 \latexignore{\rtfignore{\wxheading{Members}}}
  45
  46 \membersection{wxCheckBox::wxCheckBox}\label{wxcheckboxconstr}
  47
  48 \func{}{wxCheckBox}{\void}
  49
  50 Default constructor.
  51
  52 \func{}{wxCheckBox}{\param{wxWindow* }{parent}, \param{wxWindowID}{ id},\rtfsp
  53 \param{const wxString\& }{label}, \param{const wxPoint\& }{pos = wxDefaultPosition},\rtfsp
  54 \param{const wxSize\& }{size = wxDefaultSize}, \param{long}{ style = 0},\rtfsp
  55 \param{const wxValidator\& }{val}, \param{const wxString\& }{name = ``checkBox"}}
  56
  57 Constructor, creating and showing a checkbox.
  58
  59 \wxheading{Parameters}
  60
  61 \docparam{parent}{Parent window. Must not be NULL.}
  62
  63 \docparam{id}{Checkbox identifier. A value of -1 indicates a default value.}
  64
  65 \docparam{label}{Text to be displayed next to the checkbox.}
  66
  67 \docparam{pos}{Checkbox position. If the position (-1, -1) is specified then a default position is chosen.}
  68
  69 \docparam{size}{Checkbox size. If the default size (-1, -1) is specified then a default size is chosen.}
  70
  71 \docparam{style}{Window style. See \helpref{wxCheckBox}{wxcheckbox}.}
  72
  73 \docparam{validator}{Window validator.}
  74
  75 \docparam{name}{Window name.}
  76
  77 \wxheading{See also}
  78
  79 \helpref{wxCheckBox::Create}{wxcheckboxcreate}, \helpref{wxValidator}{wxvalidator}
  80
  81 \membersection{wxCheckBox::\destruct{wxCheckBox}}
  82
  83 \func{}{\destruct{wxCheckBox}}{\void}
  84
  85 Destructor, destroying the checkbox.
  86
  87 \membersection{wxCheckBox::Create}\label{wxcheckboxcreate}
  88
  89 \func{bool}{Create}{\param{wxWindow* }{parent}, \param{wxWindowID}{ id},\rtfsp
  90 \param{const wxString\& }{label}, \param{const wxPoint\& }{pos = wxDefaultPosition},\rtfsp
  91 \param{const wxSize\& }{size = wxDefaultSize}, \param{long}{ style = 0},\rtfsp
  92 \param{const wxValidator\& }{val}, \param{const wxString\& }{name = ``checkBox"}}
  93
  94 Creates the checkbox for two-step construction. See \helpref{wxCheckBox::wxCheckBox}{wxcheckboxconstr}\rtfsp
  95 for details.
  96
  97 \membersection{wxCheckBox::GetValue}\label{wxcheckboxgetvalue}
  98
  99 \constfunc{bool}{GetValue}{\void}
 100
 101 Gets the state of a 2-state checkbox.
 102
 103 \wxheading{Return value}
 104
 105 Returns \true if it is checked, \false otherwise.
 106
 107 \membersection{wxCheckBox::Get3StateValue}\label{wxcheckboxgetthreestatevalue}
 108
 109 \constfunc{wxCheckBoxState}{Get3StateValue}{\void}
 110
 111 Gets the state of a 3-state checkbox.
 112
 113 \wxheading{Return value}
 114
 115 Returns wxCHK\_UNCHECKED when the checkbox is unchecked, wxCHK\_CHECKED
 116  when it is checked and wxCHK\_UNDETERMINED when it's in the undetermined
 117 state. Asserts when the function is used with a 2-state checkbox.
 118
 119 \membersection{wxCheckBox::Is3rdStateAllowedForUser}\label{wxcheckboxis3rdstateallowedforuser}
 120
 121 \constfunc{bool}{Is3rdStateAllowedForUser}{\void}
 122
 123 Returns whether or not the user can set the checkbox to the third state.
 124
 125 \wxheading{Return value}
 126
 127 Returns \true if the user can set the third state of this checkbox, \false if it can only be set
 128 programmatically or if it's a 2-state checkbox.
 129
 130 \membersection{wxCheckBox::Is3State}\label{wxcheckboxis3state}
 131
 132 \constfunc{bool}{Is3State}{\void}
 133
 134 Returns whether or not the checkbox is a 3-state checkbox.
 135
 136 \wxheading{Return value}
 137
 138 Returns \true if this checkbox is a 3-state checkbox, \false if it's a 2-state checkbox.
 139
 140 \membersection{wxCheckBox::IsChecked}\label{wxcheckboxischecked}
 141
 142 \constfunc{bool}{IsChecked}{\void}
 143
 144 This is just a maybe more readable synonym for
 145 \helpref{GetValue}{wxcheckboxgetvalue}: just as the latter, it returns
 146 \true if the checkbox is checked and \false otherwise.
 147
 148 \membersection{wxCheckBox::SetValue}\label{wxcheckboxsetvalue}
 149
 150 \func{void}{SetValue}{\param{bool}{ state}}
 151
 152 Sets the checkbox to the given state. This does not cause a
 153 wxEVT\_COMMAND\_CHECKBOX\_CLICKED event to get emitted.
 154
 155 \wxheading{Parameters}
 156
 157 \docparam{state}{If \true, the check is on, otherwise it is off.}
 158
 159 \membersection{wxCheckBox::Set3StateValue}\label{wxcheckboxset3statevalue}
 160
 161 \func{void}{Set3StateValue}{\param{const wxCheckBoxState}{ state}}
 162
 163 Sets the checkbox to the given state. This does not cause a
 164 wxEVT\_COMMAND\_CHECKBOX\_CLICKED event to get emitted.
 165
 166 \wxheading{Parameters}
 167
 168 \docparam{state}{Can be one of: wxCHK\_UNCHECKED (Check is off), wxCHK\_CHECKED
 169  (Check is on) or wxCHK\_UNDETERMINED (Check is mixed). Asserts when the checkbox
 170  is a 2-state checkbox and setting the state to wxCHK\_UNDETERMINED.}