docs/latex/wx/cmdevent.tex

   1 \section{\class{wxCommandEvent}}\label{wxcommandevent}
   2
   3 This event class contains information about command events, which originate from a variety of
   4 simple controls. More complex controls, such as \helpref{wxTreeCtrl}{wxtreectrl}, have separate command event classes.
   5
   6 \wxheading{Derived from}
   7
   8 \helpref{wxEvent}{wxevent}
   9
  10 \wxheading{Event table macros}
  11
  12 To process a menu command event, use these event handler macros to direct input to member
  13 functions that take a wxCommandEvent argument.
  14
  15 \twocolwidtha{7cm}
  16 \begin{twocollist}\itemsep=0pt
  17 \twocolitem{{\bf EVT\_COMMAND(id, cmd, func)}}{Process a command, supplying the window identifier,
  18 command event identifier, and member function.}
  19 \twocolitem{{\bf EVT\_COMMAND\_RANGE(id1, id2, cmd, func)}}{Process a command for a range
  20 of window identifiers, supplying the minimum and maximum window identifiers,
  21 command event identifier, and member function.}
  22 \twocolitem{{\bf EVT\_BUTTON(id, func)}}{Process a wxEVT\_COMMAND\_BUTTON\_CLICKED command,
  23 which is generated by a wxButton control.}
  24 \twocolitem{{\bf EVT\_CHECKBOX(id, func)}}{Process a wxEVT\_COMMAND\_CHECKBOX\_CLICKED command,
  25 which is generated by a wxCheckBox control.}
  26 \twocolitem{{\bf EVT\_CHOICE(id, func)}}{Process a wxEVT\_COMMAND\_CHOICE\_SELECTED command,
  27 which is generated by a wxChoice control.}
  28 \twocolitem{{\bf EVT\_LISTBOX(id, func)}}{Process a wxEVT\_COMMAND\_LISTBOX\_SELECTED command,
  29 which is generated by a wxListBox control.}
  30 \twocolitem{{\bf EVT\_LISTBOX_DCLICK(id, func)}}{Process a wxEVT\_COMMAND\_LISTBOX\_DOUBLECLICKED command,
  31 which is generated by a wxListBox control.}
  32 \twocolitem{{\bf EVT\_TEXT(id, func)}}{Process a wxEVT\_COMMAND\_TEXT\_UPDATED command,
  33 which is generated by a wxTextCtrl control.}
  34 \twocolitem{{\bf EVT\_TEXT\_ENTER(id, func)}}{Process a wxEVT\_COMMAND\_TEXT\_ENTER command,
  35 which is generated by a wxTextCtrl control.}
  36 \twocolitem{{\bf EVT\_MENU(id, func)}}{Process a wxEVT\_COMMAND\_MENU\_SELECTED command,
  37 which is generated by a menu item.}
  38 \twocolitem{{\bf EVT\_MENU\_RANGE(id1, id2, func)}}{Process a wxEVT\_COMMAND\_MENU\_RANGE command,
  39 which is generated by a range of menu items.}
  40 \twocolitem{{\bf EVT\_SLIDER(id, func)}}{Process a wxEVT\_COMMAND\_SLIDER\_UPDATED command,
  41 which is generated by a wxSlider control.}
  42 \twocolitem{{\bf EVT\_RADIOBOX(id, func)}}{Process a wxEVT\_COMMAND\_RADIOBOX\_SELECTED command,
  43 which is generated by a wxRadioBox control.}
  44 \twocolitem{{\bf EVT\_RADIOBUTTON(id, func)}}{Process a wxEVT\_COMMAND\_RADIOBUTTON\_SELECTED command,
  45 which is generated by a wxRadioButton control.}
  46 \twocolitem{{\bf EVT\_SCROLLBAR(id, func)}}{Process a wxEVT\_COMMAND\_SCROLLBAR\_UPDATED command,
  47 which is generated by a wxScrollBar control. This is provided for compatibility only;
  48 more specific scrollbar event macros should be used instead (see \helpref{wxScrollEvent}{wxscrollevent}).}
  49 \twocolitem{{\bf EVT\_COMBOBOX(id, func)}}{Process a wxEVT\_COMMAND\_COMBOBOX\_SELECTED command,
  50 which is generated by a wxComboBox control.}
  51 \twocolitem{{\bf EVT\_TOOL(id, func)}}{Process a wxEVT\_COMMAND\_TOOL\_CLICKED command,
  52 which is generated by a toobar button.}
  53 \twocolitem{{\bf EVT\_TOOL\_RCLICKED(id, func)}}{Process a wxEVT\_COMMAND\_TOOL\_RCLICKED command,
  54 which is generated by a toobar button.}
  55 \twocolitem{{\bf EVT\_TOOL\_ENTER(id, func)}}{Process a wxEVT\_COMMAND\_TOOL\_ENTER command,
  56 which is generated by a toobar button.}
  57 \twocolitem{{\bf EVT\_COMMAND\_LEFT\_CLICK(id, func)}}{Process a wxEVT\_COMMAND\_LEFT\_CLICK command,
  58 which is generated by a control (Windows 95 and NT only).}
  59 \twocolitem{{\bf EVT\_COMMAND\_LEFT\_DCLICK(id, func)}}{Process a wxEVT\_COMMAND\_LEFT\_DCLICK command,
  60 which is generated by a control (Windows 95 and NT only).}
  61 \twocolitem{{\bf EVT\_COMMAND\_RIGHT\_CLICK(id, func)}}{Process a wxEVT\_COMMAND\_RIGHT\_CLICK command,
  62 which is generated by a control (Windows 95 and NT only).}
  63 \twocolitem{{\bf EVT\_COMMAND\_SET\_FOCUS(id, func)}}{Process a wxEVT\_COMMAND\_SET\_FOCUS command,
  64 which is generated by a control (Windows 95 and NT only).}
  65 \twocolitem{{\bf EVT\_COMMAND\_KILL\_FOCUS(id, func)}}{Process a wxEVT\_COMMAND\_KILL\_FOCUS command,
  66 which is generated by a control (Windows 95 and NT only).}
  67 \twocolitem{{\bf EVT\_COMMAND\_ENTER(id, func)}}{Process a wxEVT\_COMMAND\_ENTER command,
  68 which is generated by a control.}
  69 \end{twocollist}%
  70
  71 \latexignore{\rtfignore{\wxheading{Members}}}
  72
  73 \membersection{wxCommandEvent::m\_clientData}
  74
  75 \member{char*}{m\_clientData}
  76
  77 Contains a pointer to client data for listboxes and choices, if the event
  78 was a selection.
  79
  80 \membersection{wxCommandEvent::m\_commandInt}
  81
  82 \member{int}{m\_commandInt}
  83
  84 Contains an integer identifier corresponding to a listbox, choice or
  85 radiobox selection (only if the event was a selection, not a
  86 deselection), or a boolean value representing the value of a checkbox.
  87
  88 \membersection{wxCommandEvent::m\_commandString}
  89
  90 \member{char*}{m\_commandString}
  91
  92 Contains a string corresponding to a listbox or choice selection.
  93
  94 \membersection{wxCommandEvent::m\_extraLong}
  95
  96 \member{long}{m\_extraLong}
  97
  98 Extra information. If the event comes from a listbox selection, it is
  99 a boolean determining whether the event was a selection (TRUE) or a
 100 deselection (FALSE). A listbox deselection only occurs for
 101 multiple-selection boxes, and in this case the index and string values
 102 are indeterminate and the listbox must be examined by the application.
 103
 104 \membersection{wxCommandEvent::wxCommandEvent}
 105
 106 \func{}{wxCommandEvent}{\param{WXTYPE}{ commandEventType = 0}, \param{int}{ id = 0}}
 107
 108 Constructor.
 109
 110 \membersection{wxCommandEvent::Checked}
 111
 112 \func{bool}{Checked}{\void}
 113
 114 Returns TRUE or FALSE for a checkbox selection event.
 115
 116 \membersection{wxCommandEvent::GetClientData}
 117
 118 \func{char*}{GetClientData}{\void}
 119
 120 Returns client data pointer for a listbox or choice selection event
 121 (not valid for a deselection).
 122
 123 \membersection{wxCommandEvent::GetExtraLong}
 124
 125 \func{long}{GetExtraLong}{\void}
 126
 127 Returns the {\bf m\_extraLong} member.
 128
 129 \membersection{wxCommandEvent::GetInt}
 130
 131 \func{int}{GetInt}{\void}
 132
 133 Returns the {\bf m\_commandInt} member.
 134
 135 \membersection{wxCommandEvent::GetSelection}
 136
 137 \func{int}{GetSelection}{\void}
 138
 139 Returns item index for a listbox or choice selection event (not valid for
 140 a deselection).
 141
 142 \membersection{wxCommandEvent::GetString}
 143
 144 \func{char*}{GetString}{\void}
 145
 146 Returns item string for a listbox or choice selection event (not valid for
 147 a deselection).
 148
 149 \membersection{wxCommandEvent::IsSelection}
 150
 151 \func{bool}{IsSelection}{\void}
 152
 153 For a listbox or choice event, returns TRUE if it is a selection, FALSE if it
 154 is a deselection.
 155
 156 \membersection{wxCommandEvent::SetClientData}
 157
 158 \func{void}{SetClientData}{\param{char*}{ clientData}}
 159
 160 Sets the client data for this event.
 161
 162 \membersection{wxCommandEvent::SetExtraLong}
 163
 164 \func{void}{SetExtraLong}{\param{int}{ extraLong}}
 165
 166 Sets the {\bf m\_extraLong} member.
 167
 168 \membersection{wxCommandEvent::SetInt}
 169
 170 \func{void}{SetInt}{\param{int}{ intCommand}}
 171
 172 Sets the {\bf m\_commandInt} member.
 173
 174 \membersection{wxCommandEvent::SetString}
 175
 176 \func{void}{SetString}{\param{char*}{ string}}
 177
 178 Sets the {\bf m\_commandString} member.
 179