## wxCommandEvent

This event class contains information about command events, which originate from a variety of simple controls. More complex controls, such as wxTreeCtrl, have separate command event classes.

Derived from

wxEvent

Include files

<wx/event.h>

Event table macros

To process a menu command event, use these event handler macros to direct input to member functions that take a wxCommandEvent argument.

EVT_COMMAND(id, event, func) | Process a command, supplying the window identifier, command event identifier, and member function.
EVT_COMMAND_RANGE(id1, id2, event, func) | Process a command for a range of window identifiers, supplying the minimum and maximum window identifiers, command event identifier, and member function.
EVT_BUTTON(id, func) | Process a wxEVT_COMMAND_BUTTON_CLICKED command, which is generated by a wxButton control.
EVT_CHECKBOX(id, func) | Process a wxEVT_COMMAND_CHECKBOX_CLICKED command, which is generated by a wxCheckBox control.
EVT_CHOICE(id, func) | Process a wxEVT_COMMAND_CHOICE_SELECTED command, which is generated by a wxChoice control.
EVT_COMBOBOX(id, func) | Process a wxEVT_COMMAND_COMBOBOX_SELECTED command, which is generated by a wxComboBox control.
EVT_LISTBOX(id, func) | Process a wxEVT_COMMAND_LISTBOX_SELECTED command, which is generated by a wxListBox control.
EVT_LISTBOX_DCLICK(id, func) | Process a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED command, which is generated by a wxListBox control.
EVT_MENU(id, func) | Process a wxEVT_COMMAND_MENU_SELECTED command, which is generated by a menu item.
EVT_MENU_RANGE(id1, id2, func) | Process a wxEVT_COMMAND_MENU_RANGE command, which is generated by a range of menu items.
EVT_CONTEXT_MENU(func) | Process the event generated when the user has requested a popup menu to appear by pressing a special keyboard key (under Windows) or by right clicking the mouse.
EVT_RADIOBOX(id, func) | Process a wxEVT_COMMAND_RADIOBOX_SELECTED command, which is generated by a wxRadioBox control.
EVT_RADIOBUTTON(id, func) | Process a wxEVT_COMMAND_RADIOBUTTON_SELECTED command, which is generated by a wxRadioButton control.
EVT_SCROLLBAR(id, func) | Process a wxEVT_COMMAND_SCROLLBAR_UPDATED command, which is generated by a wxScrollBar control. This is provided for compatibility only; more specific scrollbar event macros should be used instead (see wxScrollEvent).
EVT_SLIDER(id, func) | Process a wxEVT_COMMAND_SLIDER_UPDATED command, which is generated by a wxSlider control.
EVT_TEXT(id, func) | Process a wxEVT_COMMAND_TEXT_UPDATED command, which is generated by a wxTextCtrl control.
EVT_TEXT_ENTER(id, func) | Process a wxEVT_COMMAND_TEXT_ENTER command, which is generated by a wxTextCtrl control. Note that you must use wxTE_PROCESS_ENTER flag when creating the control if you want it to generate such events.
EVT_TEXT_MAXLEN(id, func) | Process a wxEVT_COMMAND_TEXT_MAXLEN command, which is generated by a wxTextCtrl control when the user tries to enter more characters into it than the limit previously set with SetMaxLength.
EVT_TOOL(id, func) | Process a wxEVT_COMMAND_TOOL_CLICKED event (a synonym for wxEVT_COMMAND_MENU_SELECTED). Pass the id of the tool.
EVT_TOOL_RANGE(id1, id2, func) | Process a wxEVT_COMMAND_TOOL_CLICKED event for a range of identifiers. Pass the ids of the tools.
EVT_TOOL_RCLICKED(id, func) | Process a wxEVT_COMMAND_TOOL_RCLICKED event. Pass the id of the tool.
EVT_TOOL_RCLICKED_RANGE(id1, id2, func) | Process a wxEVT_COMMAND_TOOL_RCLICKED event for a range of ids. Pass the ids of the tools.
EVT_TOOL_ENTER(id, func) | Process a wxEVT_COMMAND_TOOL_ENTER event. 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.
EVT_COMMAND_LEFT_CLICK(id, func) | Process a wxEVT_COMMAND_LEFT_CLICK command, which is generated by a control (Windows 95 and NT only).
EVT_COMMAND_LEFT_DCLICK(id, func) | Process a wxEVT_COMMAND_LEFT_DCLICK command, which is generated by a control (Windows 95 and NT only).
EVT_COMMAND_RIGHT_CLICK(id, func) | Process a wxEVT_COMMAND_RIGHT_CLICK command, which is generated by a control (Windows 95 and NT only).
EVT_COMMAND_SET_FOCUS(id, func) | Process a wxEVT_COMMAND_SET_FOCUS command, which is generated by a control (Windows 95 and NT only).
EVT_COMMAND_KILL_FOCUS(id, func) | Process a wxEVT_COMMAND_KILL_FOCUS command, which is generated by a control (Windows 95 and NT only).
EVT_COMMAND_ENTER(id, func) | Process a wxEVT_COMMAND_ENTER command, which is generated by a control.

Members

wxCommandEvent::wxCommandEvent
wxCommandEvent::Checked
wxCommandEvent::GetClientData
wxCommandEvent::GetClientObject
wxCommandEvent::GetExtraLong
wxCommandEvent::GetInt
wxCommandEvent::GetSelection
wxCommandEvent::GetString
wxCommandEvent::IsChecked
wxCommandEvent::IsSelection
wxCommandEvent::SetClientData
wxCommandEvent::SetClientObject
wxCommandEvent::SetExtraLong
wxCommandEvent::SetInt
wxCommandEvent::SetString

### wxCommandEvent::wxCommandEvent

wxCommandEvent(WXTYPE commandEventType = 0, int id = 0)

Constructor.

### wxCommandEvent::Checked

bool Checked() const

Deprecated, use IsChecked instead.

### wxCommandEvent::GetClientData

void* GetClientData()

Returns client data pointer for a listbox or choice selection event (not valid for a deselection).

### wxCommandEvent::GetClientObject

wxClientData * GetClientObject()

Returns client object pointer for a listbox or choice selection event (not valid for a deselection).

### wxCommandEvent::GetExtraLong

long GetExtraLong()

Returns extra information dependant on the event objects type. If the event comes from a listbox selection, it is a boolean determining whether the event was a selection (true) or a deselection (false). A listbox deselection only occurs for multiple-selection boxes, and in this case the index and string values are indeterminate and the listbox must be examined by the application.

### wxCommandEvent::GetInt

int GetInt()

Returns the integer identifier corresponding to a listbox, choice or radiobox selection (only if the event was a selection, not a deselection), or a boolean value representing the value of a checkbox.

### wxCommandEvent::GetSelection

int GetSelection()

Returns item index for a listbox or choice selection event (not valid for a deselection).

### wxCommandEvent::GetString

wxString GetString()

Returns item string for a listbox or choice selection event (not valid for a deselection).

### wxCommandEvent::IsChecked

bool IsChecked() const

This method can be used with checkbox and menu events: for the checkboxes, the method returns `true` for a selection event and `false` for a deselection one. For the menu events, this method indicates if the menu item just has become checked or unchecked (and thus only makes sense for checkable menu items).

### wxCommandEvent::IsSelection

bool IsSelection()

For a listbox or similar event, returns true if it is a selection, false if it is a deselection.

### wxCommandEvent::SetClientData

void SetClientData(void* clientData)

Sets the client data for this event.

### wxCommandEvent::SetClientObject

void SetClientObject(wxClientData* clientObject)

Sets the client object for this event. The client object is not owned by the event object and the event object will not delete the client object in its destructor. The client object must be owned and deleted by another object (e.g. a control) that has longer life time than the event object.

### wxCommandEvent::SetExtraLong

void SetExtraLong(int extraLong)

Sets the m_extraLong member.

### wxCommandEvent::SetInt

void SetInt(int intCommand)

Sets the m_commandInt member.

### wxCommandEvent::SetString

void SetString(const wxString& string)

Sets the m_commandString member.