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event.h File Reference

## Classes

class | wxEvent
| An event is a structure holding information about an event passed to a callback or member function. More...
class | wxEventBlocker
| This class is a special event handler which allows discarding any event (or a set of event types) directed to a specific window. More...
class | wxPropagationDisabler
| Helper class to temporarily change an event to not propagate. More...
class | wxPropagateOnce
| Helper class to temporarily lower propagation level. More...
class | wxEvtHandler
| A class that can handle events from the windowing system. More...
class | wxKeyEvent
| This event class contains information about key press and release events. More...
class | wxJoystickEvent
| This event class contains information about joystick events, particularly events received by windows. More...
class | wxScrollWinEvent
| A scroll event holds information about events sent from scrolling windows. More...
class | wxSysColourChangedEvent
| This class is used for system colour change events, which are generated when the user changes the colour settings using the control panel. More...
class | wxCommandEvent
| This event class contains information about command events, which originate from a variety of simple controls. More...
class | wxWindowCreateEvent
| This event is sent just after the actual window associated with a wxWindow object has been created. More...
class | wxPaintEvent
| A paint event is sent when a window's contents needs to be repainted. More...
class | wxMaximizeEvent
| An event being sent when a top level window is maximized. More...
class | wxUpdateUIEvent
| This class is used for pseudo-events which are called by wxWidgets to give an application the chance to update various user interface elements. More...
class | wxClipboardTextEvent
| This class represents the events generated by a control (typically a wxTextCtrl but other windows can generate these events as well) when its content gets copied or cut to, or pasted from the clipboard. More...
class | wxMouseEvent
| This event class contains information about the events generated by the mouse: they include mouse buttons press and release events and mouse move events. More...
class | wxDropFilesEvent
| This class is used for drop files events, that is, when files have been dropped onto the window. More...
class | wxActivateEvent
| An activate event is sent when a window or application is being activated or deactivated. More...
class | wxContextMenuEvent
| This class is used for context menu events, sent to give the application a chance to show a context (popup) menu for a wxWindow. More...
class | wxEraseEvent
| An erase event is sent when a window's background needs to be repainted. More...
class | wxFocusEvent
| A focus event is sent when a window's focus changes. More...
class | wxChildFocusEvent
| A child focus event is sent to a (parent-)window when one of its child windows gains focus, so that the window could restore the focus back to its corresponding child if it loses it now and regains later. More...
class | wxMouseCaptureLostEvent
| A mouse capture lost event is sent to a window that had obtained mouse capture, which was subsequently lost due to an "external" event (for example, when a dialog box is shown or if another application captures the mouse). More...
class | wxDisplayChangedEvent
class | wxPaletteChangedEvent
class | wxQueryNewPaletteEvent
class | wxNotifyEvent
| This class is not used by the event handlers by itself, but is a base class for other event classes (such as wxBookCtrlEvent). More...
class | wxThreadEvent
| This class adds some simple functionality to wxEvent to facilitate inter-thread communication. More...
class | wxHelpEvent
| A help event is sent when the user has requested context-sensitive help. More...
class | wxScrollEvent
| A scroll event holds information about events sent from stand-alone scrollbars (see wxScrollBar) and sliders (see wxSlider). More...
class | wxIdleEvent
| This class is used for idle events, which are generated when the system becomes idle. More...
class | wxInitDialogEvent
| A wxInitDialogEvent is sent as a dialog or panel is being initialised. More...
class | wxWindowDestroyEvent
| This event is sent as early as possible during the window destruction process. More...
class | wxNavigationKeyEvent
| This event class contains information about navigation events, generated by navigation keys such as tab and page down. More...
class | wxMouseCaptureChangedEvent
| An mouse capture changed event is sent to a window that loses its mouse capture. More...
class | wxCloseEvent
| This event class contains information about window and session close events. More...
class | wxMenuEvent
| This class is used for a variety of menu-related events. More...
class | wxShowEvent
| An event being sent when the window is shown or hidden. More...
class | wxIconizeEvent
| An event being sent when the frame is iconized (minimized) or restored. More...
class | wxMoveEvent
| A move event holds information about wxTopLevelWindow move change events. More...
class | wxSizeEvent
| A size event holds information about size change events of wxWindow. More...
class | wxSetCursorEvent
| A wxSetCursorEvent is generated from wxWindow when the mouse cursor is about to be set as a result of mouse motion. More...

## Macros

#define | wxDEFINE_EVENT(name, cls) const wxEventTypeTag< cls > name(wxNewEventType())
| Define a new event type associated with the specified event class. More...
#define | wxDECLARE_EVENT(name, cls) wxDECLARE_EXPORTED_EVENT(wxEMPTY_PARAMETER_VALUE, name, cls)
| Declares a custom event type. More...
#define | wxDECLARE_EXPORTED_EVENT(expdecl, name, cls) extern const expdecl wxEventTypeTag< cls > name;
| Variant of wxDECLARE_EVENT() used for event types defined inside a shared library. More...
#define | wxEVENT_HANDLER_CAST(functype, func) (&func)
| Helper macro for definition of custom event table macros. More...
#define | wx__DECLARE_EVT1(evt, id, fn) wx__DECLARE_EVT2(evt, id, wxID_ANY, fn)
| This macro is used to define event table macros for handling custom events. More...
#define | wx__DECLARE_EVT2(evt, id1, id2, fn) DECLARE_EVENT_TABLE_ENTRY(evt, id1, id2, fn, NULL),
| Generalized version of the wx__DECLARE_EVT1() macro taking a range of IDs instead of a single one. More...
#define | wx__DECLARE_EVT0(evt, fn) wx__DECLARE_EVT1(evt, wxID_ANY, fn)
| Simplified version of the wx__DECLARE_EVT1() macro, to be used when the event type must be handled regardless of the ID associated with the specific event instances. More...
#define | wxDECLARE_EVENT_TABLE()
| Use this macro inside a class declaration to declare a static event table for that class. More...
#define | wxBEGIN_EVENT_TABLE(theClass, baseClass)
| Use this macro in a source file to start listing static event handlers for a specific class. More...
#define | wxEND_EVENT_TABLE()
| Use this macro in a source file to end listing static event handlers for a specific class. More...

## Typedefs

typedef int | wxEventType
| A value uniquely identifying the type of the event. More...

## Enumerations

enum | wxEventPropagation { wxEVENT_PROPAGATE_NONE = 0, wxEVENT_PROPAGATE_MAX = INT_MAX }
| The predefined constants for the number of times we propagate event upwards window child-parent chain. More...
enum | wxEventCategory { wxEVT_CATEGORY_UI = 1, wxEVT_CATEGORY_USER_INPUT = 2, wxEVT_CATEGORY_SOCKET = 4, wxEVT_CATEGORY_TIMER = 8, wxEVT_CATEGORY_THREAD = 16, wxEVT_CATEGORY_ALL }
| The different categories for a wxEvent; see wxEvent::GetEventCategory. More...
enum | wxKeyCategoryFlags { WXK_CATEGORY_ARROW, WXK_CATEGORY_PAGING, WXK_CATEGORY_JUMP, WXK_CATEGORY_TAB, WXK_CATEGORY_CUT, WXK_CATEGORY_NAVIGATION }
| Flags for categories of keys. More...
enum | { wxJOYSTICK1, wxJOYSTICK2 }
enum | { wxJOY_BUTTON_ANY = -1, wxJOY_BUTTON1 = 1, wxJOY_BUTTON2 = 2, wxJOY_BUTTON3 = 4, wxJOY_BUTTON4 = 8 }
enum | wxUpdateUIMode { wxUPDATE_UI_PROCESS_ALL, wxUPDATE_UI_PROCESS_SPECIFIED }
| The possibles modes to pass to wxUpdateUIEvent::SetMode(). More...
enum | wxMouseWheelAxis { wxMOUSE_WHEEL_VERTICAL, wxMOUSE_WHEEL_HORIZONTAL }
| Possible axis values for mouse wheel scroll events. More...
enum | wxIdleMode { wxIDLE_PROCESS_ALL, wxIDLE_PROCESS_SPECIFIED }
| See wxIdleEvent::SetMode() for more info. More...

## Functions

wxEventType | wxNewEventType ()
| Generates a new unique event type. More...
void | wxPostEvent (wxEvtHandler *dest, const wxEvent &event)
| In a GUI application, this function posts event to the specified dest object using wxEvtHandler::AddPendingEvent(). More...
void | wxQueueEvent (wxEvtHandler *dest, wxEvent *event)
| Queue an event for processing on the given object. More...

## Variables

wxEventType | wxEVT_NULL
| A special event type usually used to indicate that some wxEvent has yet no type assigned. More...
wxEventType | wxEVT_ANY
wxEventType | wxEVT_BUTTON
wxEventType | wxEVT_CHECKBOX
wxEventType | wxEVT_CHOICE
wxEventType | wxEVT_LISTBOX
wxEventType | wxEVT_LISTBOX_DCLICK
wxEventType | wxEVT_CHECKLISTBOX
wxEventType | wxEVT_MENU
wxEventType | wxEVT_SLIDER
wxEventType | wxEVT_RADIOBOX
wxEventType | wxEVT_RADIOBUTTON
wxEventType | wxEVT_SCROLLBAR
wxEventType | wxEVT_VLBOX
wxEventType | wxEVT_COMBOBOX
wxEventType | wxEVT_TOOL_RCLICKED
wxEventType | wxEVT_TOOL_DROPDOWN
wxEventType | wxEVT_TOOL_ENTER
wxEventType | wxEVT_COMBOBOX_DROPDOWN
wxEventType | wxEVT_COMBOBOX_CLOSEUP
wxEventType | wxEVT_THREAD
wxEventType | wxEVT_LEFT_DOWN
wxEventType | wxEVT_LEFT_UP
wxEventType | wxEVT_MIDDLE_DOWN
wxEventType | wxEVT_MIDDLE_UP
wxEventType | wxEVT_RIGHT_DOWN
wxEventType | wxEVT_RIGHT_UP
wxEventType | wxEVT_MOTION
wxEventType | wxEVT_ENTER_WINDOW
wxEventType | wxEVT_LEAVE_WINDOW
wxEventType | wxEVT_LEFT_DCLICK
wxEventType | wxEVT_MIDDLE_DCLICK
wxEventType | wxEVT_RIGHT_DCLICK
wxEventType | wxEVT_SET_FOCUS
wxEventType | wxEVT_KILL_FOCUS
wxEventType | wxEVT_CHILD_FOCUS
wxEventType | wxEVT_MOUSEWHEEL
wxEventType | wxEVT_AUX1_DOWN
wxEventType | wxEVT_AUX1_UP
wxEventType | wxEVT_AUX1_DCLICK
wxEventType | wxEVT_AUX2_DOWN
wxEventType | wxEVT_AUX2_UP
wxEventType | wxEVT_AUX2_DCLICK
wxEventType | wxEVT_CHAR
wxEventType | wxEVT_CHAR_HOOK
wxEventType | wxEVT_NAVIGATION_KEY
wxEventType | wxEVT_KEY_DOWN
wxEventType | wxEVT_KEY_UP
wxEventType | wxEVT_HOTKEY
wxEventType | wxEVT_SET_CURSOR
wxEventType | wxEVT_SCROLL_TOP
wxEventType | wxEVT_SCROLL_BOTTOM
wxEventType | wxEVT_SCROLL_LINEUP
wxEventType | wxEVT_SCROLL_LINEDOWN
wxEventType | wxEVT_SCROLL_PAGEUP
wxEventType | wxEVT_SCROLL_PAGEDOWN
wxEventType | wxEVT_SCROLL_THUMBTRACK
wxEventType | wxEVT_SCROLL_THUMBRELEASE
wxEventType | wxEVT_SCROLL_CHANGED
wxEventType | wxEVT_SPIN_UP
wxEventType | wxEVT_SPIN_DOWN
wxEventType | wxEVT_SPIN
wxEventType | wxEVT_SCROLLWIN_TOP
wxEventType | wxEVT_SCROLLWIN_BOTTOM
wxEventType | wxEVT_SCROLLWIN_LINEUP
wxEventType | wxEVT_SCROLLWIN_LINEDOWN
wxEventType | wxEVT_SCROLLWIN_PAGEUP
wxEventType | wxEVT_SCROLLWIN_PAGEDOWN
wxEventType | wxEVT_SCROLLWIN_THUMBTRACK
wxEventType | wxEVT_SCROLLWIN_THUMBRELEASE
wxEventType | wxEVT_SIZE
wxEventType | wxEVT_MOVE
wxEventType | wxEVT_CLOSE_WINDOW
wxEventType | wxEVT_END_SESSION
wxEventType | wxEVT_QUERY_END_SESSION
wxEventType | wxEVT_ACTIVATE_APP
wxEventType | wxEVT_ACTIVATE
wxEventType | wxEVT_CREATE
wxEventType | wxEVT_DESTROY
wxEventType | wxEVT_SHOW
wxEventType | wxEVT_ICONIZE
wxEventType | wxEVT_MAXIMIZE
wxEventType | wxEVT_MOUSE_CAPTURE_CHANGED
wxEventType | wxEVT_MOUSE_CAPTURE_LOST
wxEventType | wxEVT_PAINT
wxEventType | wxEVT_ERASE_BACKGROUND
wxEventType | wxEVT_NC_PAINT
wxEventType | wxEVT_MENU_OPEN
wxEventType | wxEVT_MENU_CLOSE
wxEventType | wxEVT_MENU_HIGHLIGHT
wxEventType | wxEVT_CONTEXT_MENU
wxEventType | wxEVT_SYS_COLOUR_CHANGED
wxEventType | wxEVT_DISPLAY_CHANGED
wxEventType | wxEVT_QUERY_NEW_PALETTE
wxEventType | wxEVT_PALETTE_CHANGED
wxEventType | wxEVT_JOY_BUTTON_DOWN
wxEventType | wxEVT_JOY_BUTTON_UP
wxEventType | wxEVT_JOY_MOVE
wxEventType | wxEVT_JOY_ZMOVE
wxEventType | wxEVT_DROP_FILES
wxEventType | wxEVT_INIT_DIALOG
wxEventType | wxEVT_IDLE
wxEventType | wxEVT_UPDATE_UI
wxEventType | wxEVT_SIZING
wxEventType | wxEVT_MOVING
wxEventType | wxEVT_MOVE_START
wxEventType | wxEVT_MOVE_END
wxEventType | wxEVT_HIBERNATE
wxEventType | wxEVT_TEXT_COPY
wxEventType | wxEVT_TEXT_CUT
wxEventType | wxEVT_TEXT_PASTE
wxEventType | wxEVT_COMMAND_LEFT_CLICK
wxEventType | wxEVT_COMMAND_LEFT_DCLICK
wxEventType | wxEVT_COMMAND_RIGHT_CLICK
wxEventType | wxEVT_COMMAND_RIGHT_DCLICK
wxEventType | wxEVT_COMMAND_SET_FOCUS
wxEventType | wxEVT_COMMAND_KILL_FOCUS
wxEventType | wxEVT_COMMAND_ENTER
wxEventType | wxEVT_HELP
wxEventType | wxEVT_DETAILED_HELP
wxEventType | wxEVT_TOOL
wxEventType | wxEVT_WINDOW_MODAL_DIALOG_CLOSED

## Enumeration Type Documentation

anonymous enum

Enumerator
wxJOYSTICK1 |
wxJOYSTICK2 |

anonymous enum

Enumerator
wxJOY_BUTTON_ANY |
wxJOY_BUTTON1 |
wxJOY_BUTTON2 |
wxJOY_BUTTON3 |
wxJOY_BUTTON4 |

enum wxEventCategory

The different categories for a wxEvent; see wxEvent::GetEventCategory.

Note
  They are used as OR-combinable flags by wxEventLoopBase::YieldFor.

Enumerator
wxEVT_CATEGORY_UI | This is the category for those events which are generated to update the appearance of the GUI but which (usually) do not comport data processing, i.e. which do not provide input or output data (e.g. size events, scroll events, etc). They are events NOT directly generated by the user's input devices.
wxEVT_CATEGORY_USER_INPUT | This category groups those events which are generated directly from the user through input devices like mouse and keyboard and usually result in data to be processed from the application (e.g. mouse clicks, key presses, etc).
wxEVT_CATEGORY_SOCKET | This category is for wxSocketEvent.
wxEVT_CATEGORY_TIMER | This category is for wxTimerEvent.
wxEVT_CATEGORY_THREAD | This category is for any event used to send notifications from the secondary threads to the main one or in general for notifications among different threads (which may or may not be user-generated). See e.g. wxThreadEvent.
wxEVT_CATEGORY_ALL | This mask is used in wxEventLoopBase::YieldFor to specify that all event categories should be processed.

enum wxEventPropagation

The predefined constants for the number of times we propagate event upwards window child-parent chain.

Enumerator
wxEVENT_PROPAGATE_NONE | don't propagate it at all
wxEVENT_PROPAGATE_MAX | propagate it until it is processed

enum wxIdleMode

See wxIdleEvent::SetMode() for more info.

Enumerator
wxIDLE_PROCESS_ALL | Send idle events to all windows.
wxIDLE_PROCESS_SPECIFIED | Send idle events to windows that have the wxWS_EX_PROCESS_IDLE flag specified.

enum wxKeyCategoryFlags

Flags for categories of keys.

These values are used by wxKeyEvent::IsKeyInCategory(). They may be combined via the bitwise operators |, &, and ~.

Since
  2.9.1

Enumerator
WXK_CATEGORY_ARROW | arrow keys, on and off numeric keypads
WXK_CATEGORY_PAGING | page up and page down keys, on and off numeric keypads
WXK_CATEGORY_JUMP | home and end keys, on and off numeric keypads
WXK_CATEGORY_TAB | tab key, on and off numeric keypads
WXK_CATEGORY_CUT | backspace and delete keys, on and off numeric keypads
WXK_CATEGORY_NAVIGATION | union of WXK_CATEGORY_ARROW, WXK_CATEGORY_PAGING, and WXK_CATEGORY_JUMP categories

enum wxMouseWheelAxis

Possible axis values for mouse wheel scroll events.

Since
  2.9.4

Enumerator
wxMOUSE_WHEEL_VERTICAL | Vertical scroll event.
wxMOUSE_WHEEL_HORIZONTAL | Horizontal scroll event.

enum wxUpdateUIMode

The possibles modes to pass to wxUpdateUIEvent::SetMode().

Enumerator
wxUPDATE_UI_PROCESS_ALL | Send UI update events to all windows.
wxUPDATE_UI_PROCESS_SPECIFIED | Send UI update events to windows that have the wxWS_EX_PROCESS_UI_UPDATES flag specified.