1e75cc48ca
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32679 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
199 lines
9.0 KiB
TeX
199 lines
9.0 KiB
TeX
\section{\class{wxCommandEvent}}\label{wxcommandevent}
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This event class contains information about command events, which originate from a variety of
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simple controls. More complex controls, such as \helpref{wxTreeCtrl}{wxtreectrl}, have separate command event classes.
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\wxheading{Derived from}
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\helpref{wxEvent}{wxevent}
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\wxheading{Include files}
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<wx/event.h>
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\wxheading{Event table macros}
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To process a menu command event, use these event handler macros to direct input to member
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functions that take a wxCommandEvent argument.
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\twocolwidtha{7cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf EVT\_COMMAND(id, event, func)}}{Process a command, supplying the window identifier,
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command event identifier, and member function.}
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\twocolitem{{\bf EVT\_COMMAND\_RANGE(id1, id2, event, func)}}{Process a command for a range
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of window identifiers, supplying the minimum and maximum window identifiers,
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command event identifier, and member function.}
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\twocolitem{{\bf EVT\_BUTTON(id, func)}}{Process a wxEVT\_COMMAND\_BUTTON\_CLICKED command,
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which is generated by a wxButton control.}
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\twocolitem{{\bf EVT\_CHECKBOX(id, func)}}{Process a wxEVT\_COMMAND\_CHECKBOX\_CLICKED command,
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which is generated by a wxCheckBox control.}
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\twocolitem{{\bf EVT\_CHOICE(id, func)}}{Process a wxEVT\_COMMAND\_CHOICE\_SELECTED command,
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which is generated by a wxChoice control.}
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\twocolitem{{\bf EVT\_COMBOBOX(id, func)}}{Process a wxEVT\_COMMAND\_COMBOBOX\_SELECTED command,
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which is generated by a wxComboBox control.}
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\twocolitem{{\bf EVT\_LISTBOX(id, func)}}{Process a wxEVT\_COMMAND\_LISTBOX\_SELECTED command,
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which is generated by a wxListBox control.}
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\twocolitem{{\bf EVT\_LISTBOX\_DCLICK(id, func)}}{Process a wxEVT\_COMMAND\_LISTBOX\_DOUBLECLICKED command,
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which is generated by a wxListBox control.}
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\twocolitem{{\bf EVT\_MENU(id, func)}}{Process a wxEVT\_COMMAND\_MENU\_SELECTED command,
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which is generated by a menu item.}
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\twocolitem{{\bf EVT\_MENU\_RANGE(id1, id2, func)}}{Process a wxEVT\_COMMAND\_MENU\_RANGE command,
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which is generated by a range of menu items.}
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\twocolitem{{\bf EVT\_CONTEXT\_MENU(func)}}{Process the event generated
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when the user has requested a popup menu to appear by pressing a special
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keyboard key (under Windows) or by right clicking the mouse.}
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\twocolitem{{\bf EVT\_RADIOBOX(id, func)}}{Process a wxEVT\_COMMAND\_RADIOBOX\_SELECTED command,
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which is generated by a wxRadioBox control.}
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\twocolitem{{\bf EVT\_RADIOBUTTON(id, func)}}{Process a wxEVT\_COMMAND\_RADIOBUTTON\_SELECTED command,
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which is generated by a wxRadioButton control.}
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\twocolitem{{\bf EVT\_SCROLLBAR(id, func)}}{Process a wxEVT\_COMMAND\_SCROLLBAR\_UPDATED command,
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which is generated by a wxScrollBar control. This is provided for compatibility only;
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more specific scrollbar event macros should be used instead (see \helpref{wxScrollEvent}{wxscrollevent}).}
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\twocolitem{{\bf EVT\_SLIDER(id, func)}}{Process a wxEVT\_COMMAND\_SLIDER\_UPDATED command,
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which is generated by a wxSlider control.}
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\twocolitem{{\bf EVT\_TEXT(id, func)}}{Process a wxEVT\_COMMAND\_TEXT\_UPDATED command,
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which is generated by a wxTextCtrl control.}
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\twocolitem{{\bf EVT\_TEXT\_ENTER(id, func)}}{Process a wxEVT\_COMMAND\_TEXT\_ENTER command,
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which is generated by a wxTextCtrl control. Note that you must use
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wxTE\_PROCESS\_ENTER flag when creating the control if you want it to generate
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such events.}
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\twocolitem{{\bf EVT\_TEXT\_MAXLEN(id, func)}}{Process a wxEVT\_COMMAND\_TEXT\_MAXLEN command,
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which is generated by a wxTextCtrl control when the user tries to enter more
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characters into it than the limit previously set with
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\helpref{SetMaxLength}{wxtextctrlsetmaxlength}.}
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\twocolitem{{\bf EVT\_TOOL(id, func)}}{Process a wxEVT\_COMMAND\_TOOL\_CLICKED event
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(a synonym for wxEVT\_COMMAND\_MENU\_SELECTED). Pass the id of the tool.}
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\twocolitem{{\bf EVT\_TOOL\_RANGE(id1, id2, func)}}{Process a wxEVT\_COMMAND\_TOOL\_CLICKED event
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for a range of identifiers. Pass the ids of the tools.}
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\twocolitem{{\bf EVT\_TOOL\_RCLICKED(id, func)}}{Process a wxEVT\_COMMAND\_TOOL\_RCLICKED event.
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Pass the id of the tool.}
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\twocolitem{{\bf EVT\_TOOL\_RCLICKED\_RANGE(id1, id2, func)}}{Process a wxEVT\_COMMAND\_TOOL\_RCLICKED event
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for a range of ids. Pass the ids of the tools.}
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\twocolitem{{\bf EVT\_TOOL\_ENTER(id, func)}}{Process a wxEVT\_COMMAND\_TOOL\_ENTER event.
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Pass the id of the toolbar itself. The value of wxCommandEvent::GetSelection is the tool id, or -1 if the mouse cursor has moved off a tool.}
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\twocolitem{{\bf EVT\_COMMAND\_LEFT\_CLICK(id, func)}}{Process a wxEVT\_COMMAND\_LEFT\_CLICK command,
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which is generated by a control (Windows 95 and NT only).}
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\twocolitem{{\bf EVT\_COMMAND\_LEFT\_DCLICK(id, func)}}{Process a wxEVT\_COMMAND\_LEFT\_DCLICK command,
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which is generated by a control (Windows 95 and NT only).}
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\twocolitem{{\bf EVT\_COMMAND\_RIGHT\_CLICK(id, func)}}{Process a wxEVT\_COMMAND\_RIGHT\_CLICK command,
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which is generated by a control (Windows 95 and NT only).}
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\twocolitem{{\bf EVT\_COMMAND\_SET\_FOCUS(id, func)}}{Process a wxEVT\_COMMAND\_SET\_FOCUS command,
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which is generated by a control (Windows 95 and NT only).}
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\twocolitem{{\bf EVT\_COMMAND\_KILL\_FOCUS(id, func)}}{Process a wxEVT\_COMMAND\_KILL\_FOCUS command,
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which is generated by a control (Windows 95 and NT only).}
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\twocolitem{{\bf EVT\_COMMAND\_ENTER(id, func)}}{Process a wxEVT\_COMMAND\_ENTER command,
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which is generated by a control.}
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\end{twocollist}%
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxCommandEvent::wxCommandEvent}\label{wxcommandeventctor}
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\func{}{wxCommandEvent}{\param{WXTYPE}{ commandEventType = 0}, \param{int}{ id = 0}}
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Constructor.
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\membersection{wxCommandEvent::Checked}\label{wxcommandeventchecked}
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\constfunc{bool}{Checked}{\void}
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Deprecated, use \helpref{IsChecked}{wxcommandeventischecked} instead.
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\membersection{wxCommandEvent::GetClientData}\label{wxcommandeventgetclientdata}
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\func{void*}{GetClientData}{\void}
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Returns client data pointer for a listbox or choice selection event
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(not valid for a deselection).
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\membersection{wxCommandEvent::GetClientObject}\label{wxcommandeventgetclientobject}
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\func{wxClientData *}{GetClientObject}{\void}
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Returns client object pointer for a listbox or choice selection event
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(not valid for a deselection).
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\membersection{wxCommandEvent::GetExtraLong}\label{wxcommandeventgetextralong}
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\func{long}{GetExtraLong}{\void}
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Returns extra information dependant on the event objects type.
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If the event comes from a listbox selection, it is a boolean
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determining whether the event was a selection (true) or a
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deselection (false). A listbox deselection only occurs for
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multiple-selection boxes, and in this case the index and string values
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are indeterminate and the listbox must be examined by the application.
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\membersection{wxCommandEvent::GetInt}\label{wxcommandeventgetint}
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\func{int}{GetInt}{\void}
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Returns the integer identifier corresponding to a listbox, choice or
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radiobox selection (only if the event was a selection, not a
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deselection), or a boolean value representing the value of a checkbox.
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\membersection{wxCommandEvent::GetSelection}\label{wxcommandeventgetselection}
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\func{int}{GetSelection}{\void}
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Returns item index for a listbox or choice selection event (not valid for
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a deselection).
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\membersection{wxCommandEvent::GetString}\label{wxcommandeventgetstring}
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\func{wxString}{GetString}{\void}
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Returns item string for a listbox or choice selection event (not valid for
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a deselection).
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\membersection{wxCommandEvent::IsChecked}\label{wxcommandeventischecked}
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\constfunc{bool}{IsChecked}{\void}
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This method can be used with checkbox and menu events: for the checkboxes, the
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method returns {\tt true} for a selection event and {\tt false} for a
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deselection one. For the menu events, this method indicates if the menu item
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just has become checked or unchecked (and thus only makes sense for checkable
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menu items).
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\membersection{wxCommandEvent::IsSelection}\label{wxcommandeventisselection}
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\func{bool}{IsSelection}{\void}
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For a listbox or similar event, returns true if it is a selection, false if it
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is a deselection.
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\membersection{wxCommandEvent::SetClientData}\label{wxcommandeventsetclientdata}
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\func{void}{SetClientData}{\param{void*}{ clientData}}
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Sets the client data for this event.
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\membersection{wxCommandEvent::SetClientObject}\label{wxcommandeventsetclientobject}
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\func{void}{SetClientObject}{\param{wxClientData*}{ clientObject}}
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Sets the client object for this event. The client object is \emph{not} owned by the event
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object and the event object will not delete the client object in its destructor.
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The client object must be owned and deleted by another object (e.g. a control)
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that has longer life time than the event object.
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\membersection{wxCommandEvent::SetExtraLong}\label{wxcommandeventsetextralong}
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\func{void}{SetExtraLong}{\param{int}{ extraLong}}
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Sets the {\bf m\_extraLong} member.
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\membersection{wxCommandEvent::SetInt}\label{wxcommandeventsetint}
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\func{void}{SetInt}{\param{int}{ intCommand}}
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Sets the {\bf m\_commandInt} member.
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\membersection{wxCommandEvent::SetString}\label{wxcommandeventsetstring}
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\func{void}{SetString}{\param{const wxString\&}{ string}}
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Sets the {\bf m\_commandString} member.
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