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Gdk

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Event

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Union Gdk.Event

Import line:	Gdk = imports.gi.Gdk;
GIR File:	Gdk-3.0.gir
C documentation:	GdkEvent
Union :	Event

The GdkEvent struct contains a union of all of the event structs,
and allows access to the data fields in a number of ways.
The event type is always the first field in all of the event structs, and
can always be accessed with the following code, no matter what type of
event it is:

GdkEvent *event;
GdkEventType type;
type = event->type;

To access other fields of the event structs, the pointer to the event
can be cast to the appropriate event struct pointer, or the union member
name can be used. For example if the event type is GDK_BUTTON_PRESS
then the x coordinate of the button press can be accessed with:

GdkEvent *event;
gdouble x;
x = ((GdkEventButton*)event)->x;

or:

GdkEvent *event;
gdouble x;
x = event->button.x;

Properties
Properties		Defined By
	any : Gdk.EventAny	Gdk.Event
	button : Gdk.EventButton	Gdk.Event
	configure : Gdk.EventConfigure	Gdk.Event
	crossing : Gdk.EventCrossing	Gdk.Event
	dnd : Gdk.EventDND	Gdk.Event
	expose : Gdk.EventExpose	Gdk.Event
	focus_change : Gdk.EventFocus	Gdk.Event
	grab_broken : Gdk.EventGrabBroken	Gdk.Event
	key : Gdk.EventKey	Gdk.Event
	motion : Gdk.EventMotion	Gdk.Event
	owner_change : Gdk.EventOwnerChange	Gdk.Event
	property : Gdk.EventProperty	Gdk.Event
	proximity : Gdk.EventProximity	Gdk.Event
	scroll : Gdk.EventScroll	Gdk.Event
	selection : Gdk.EventSelection	Gdk.Event
	setting : Gdk.EventSetting	Gdk.Event
	type : Gdk.EventType	Gdk.Event
	visibility : Gdk.EventVisibility	Gdk.Event
	window_state : Gdk.EventWindowState	Gdk.Event

Methods / Constructors
Method / Constructor		Defined By
	new Gdk.Event () Create a new Gdk.Event Create a new Gdk.Event
	new Gdk.Event.c_new (EventType *type) : Gdk.Event Create a new Gdk.Event Create a new Gdk.Event Parameters: Gdk.EventType type* Required (not null) a GdkEventType Returns: Gdk.Event a newly-allocated GdkEvent. The returned GdkEvent
	_get_angle (Event *event2, Object out_values) : gboolean If both events contain X/Y information, this function will return TRUE* and return in angle the relative angle from event1 to event2. If both events contain X/Y information, this function will return TRUE and return in angle the relative angle from event1 to event2. The rotation direction for positive angles is from the positive X axis towards the positive Y axis. Parameters: Gdk.Event event2 Required (not null) second GdkEvent Object out_values gdouble angle Returns: gboolean TRUE if the angle could be calculated.	Gdk.Event
	_get_center (Event *event2, Object out_values) : gboolean If both events contain X/Y information, the center of both coordinates will be returned in x and y. If both events contain X/Y information, the center of both coordinates will be returned in x and y. Parameters: Gdk.Event event2* Required (not null) second GdkEvent Object out_values gdouble x gdouble y Returns: gboolean TRUE if the center could be calculated.	Gdk.Event
	_get_distance (Event *event2, Object out_values) : gboolean If both events have X/Y information, the distance between both coordinates (as in a straight line going from event1 to event2) will be returned. If both events have X/Y information, the distance between both coordinates (as in a straight line going from event1 to event2) will be returned. Parameters: Gdk.Event event2* Required (not null) second GdkEvent Object out_values gdouble distance Returns: gboolean TRUE if the distance could be calculated.	Gdk.Event
	copy () : Gdk.Event Copies a GdkEvent, copying or incrementing the reference count of the resources associated with it (e.g. Copies a GdkEvent, copying or incrementing the reference count of the resources associated with it (e.g. GdkWindow's and strings). gdk_event_free(). Returns: Gdk.Event a copy of event. The returned GdkEvent should be freed with	Gdk.Event
	free () : none Frees a GdkEvent, freeing or decrementing any resources associated with it. Frees a GdkEvent, freeing or decrementing any resources associated with it. Note that this function should only be called with events returned from functions such as gdk_event_peek(), gdk_event_get(), gdk_event_copy() and gdk_event_new(). Returns: none	Gdk.Event
	get_axis (AxisUse *axis_use, Object out_values) : gboolean Extract the axis value for a particular axis use from an event structure. Extract the axis value for a particular axis use from an event structure. Parameters: Gdk.AxisUse axis_use* Required (not null) the axis use to look for Object out_values gdouble value Returns: gboolean TRUE if the specified axis was found, otherwise FALSE	Gdk.Event
	get_coords (Object *out_values) : gboolean Extract the event window relative x/y coordinates from an event. Extract the event window relative x/y coordinates from an event. Parameters: Object out_values* gdouble x_win gdouble y_win Returns: gboolean TRUE if the event delivered event window coordinates	Gdk.Event
	get_device () : Gdk.Device If the event contains a "device" field, this function will return it, else it will return NULL. If the event contains a "device" field, this function will return it, else it will return NULL. Returns: Gdk.Device a GdkDevice, or NULL.	Gdk.Event
	get_root_coords (Object *out_values) : gboolean Extract the root window relative x/y coordinates from an event. Extract the root window relative x/y coordinates from an event. Parameters: Object out_values* gdouble x_root gdouble y_root Returns: gboolean TRUE if the event delivered root window coordinates	Gdk.Event
	get_screen () : Gdk.Screen Returns the screen for the event. Returns the screen for the event. The screen is typically the screen for event->any.window, but for events such as mouse events, it is the screen where the pointer was when the event occurs - that is, the screen which has the root window to which event->motion.x_root and event->motion.y_root are relative. Returns: Gdk.Screen the screen for the event	Gdk.Event
	get_source_device () : Gdk.Device This function returns the hardware (slave) GdkDevice that has triggered the event, falling back to the virtual (master) device (as in gdk_event_get_device()) if the event wasn't caused by interaction with a hardware device. This function returns the hardware (slave) GdkDevice that has triggered the event, falling back to the virtual (master) device (as in gdk_event_get_device()) if the event wasn't caused by interaction with a hardware device. This may happen for example in synthesized crossing events after a GdkWindow updates its geometry or a grab is acquired/released. If the event does not contain a device field, this function will return NULL. Returns: Gdk.Device a GdkDevice, or NULL.	Gdk.Event
	get_state (Object *out_values) : gboolean If the event contains a "state" field, puts that field in state. If the event contains a "state" field, puts that field in state. Otherwise stores an empty state (0). Returns TRUE* if there was a state field in the event. event may be NULL, in which case it's treated as if the event had no state field. Parameters: Object out_values Gdk.ModifierType state Returns: gboolean TRUE if there was a state field in the event	Gdk.Event
	get_time () : guint32 Returns the time stamp from event, if there is one; otherwise returns GDK_CURRENT_TIME. Returns the time stamp from event, if there is one; otherwise returns GDK_CURRENT_TIME. If event is NULL, returns GDK_CURRENT_TIME. Returns: guint32 time stamp field from event	Gdk.Event
	put () : none Appends a copy of the given event onto the front of the event queue for event->any.window's display, or the default event queue if event->any.window is NULL. Appends a copy of the given event onto the front of the event queue for event->any.window's display, or the default event queue if event->any.window is NULL. See gdk_display_put_event(). Returns: none	Gdk.Event
	set_device (Device *device) : none Sets the device for event* to device. Sets the device for event to device. The event must have been allocated by GTK+, for instance, by gdk_event_copy(). Parameters: Gdk.Device device Required (not null) a GdkDevice Returns: none	Gdk.Event
	set_screen (Screen *screen) : none Sets the screen for event* to screen. Sets the screen for event to screen. The event must have been allocated by GTK+, for instance, by gdk_event_copy(). Parameters: Gdk.Screen screen Required (not null) a GdkScreen Returns: none	Gdk.Event
	set_source_device (Device *device) : none Sets the slave device for event* to device. Sets the slave device for event to device. The event must have been allocated by GTK+, for instance by gdk_event_copy(). Parameters: Gdk.Device device Required (not null) a GdkDevice Returns: none	Gdk.Event

Events
None

Used by These Methods / Signals / Properties
Class / Namespace	Method / Signal / Properties
Gdk Method	Gdk.event_get () : Gdk.Event Checks all open displays for a GdkEvent to process,to be processed on, fetching events from the windowing system if necessary.
Gdk Method	Gdk.event_peek () : Gdk.Event If there is an event waiting in the event queue of some open display, returns a copy of it.
Gdk.Display Method	get_event () : Gdk.Event Gets the next GdkEvent to be processed for display, fetching events from the windowing system if necessary.
Gdk.Display Method	peek_event () : Gdk.Event Gets a copy of the first GdkEvent in the display's event queue, without removing the event from the queue.
Gdk.Display Method	put_event (Event *event) : none Appends a copy of the given event onto the front of the event queue for display*.
Gtk Method	Gtk.get_current_event () : Gdk.Event Obtains a copy of the event currently being processed by GTK+.
Gtk Method	Gtk.get_event_widget (Event *event) : Gtk.Widget If event* is NULL or the event was not associated with any widget, returns NULL, otherwise returns the widget that received the event originally.
Gtk Method	Gtk.main_do_event (Event *event*) : none Processes a single GDK event.
Gtk Method	Gtk.propagate_event (Widget *widget, Event event*) : none Sends an event to a widget, propagating the event to parent widgets if the event remains unhandled.
Gtk.CellArea Method	activate_cell (Widget *widget, CellRenderer renderer, Event event, RectangleInt cell_area, CellRendererState flags) : gboolean This is used by GtkCellArea* subclasses when handling events to activate cells, the base GtkCellArea class activates cells for keyboard events for free in its own GtkCellArea->activate() implementation.
Gtk.CellArea Method	event (CellAreaContext *context, Widget widget, Event event, RectangleInt cell_area, CellRendererState flags) : gint32 Delegates event handling to a GtkCellArea*.
Gtk.CellEditable Method	start_editing (Event *event) : none Begins editing on a cell_editable*.
Gtk.CellRenderer Method	activate (Event *event, Widget widget, String path, RectangleInt background_area, RectangleInt cell_area, CellRendererState flags*) : gboolean Passes an activate event to the cell renderer for possible processing.
Gtk.CellRenderer Method	start_editing (Event *event, Widget widget, String path, RectangleInt background_area, RectangleInt cell_area, CellRendererState flags*) : Gtk.CellEditable Passes an activate event to the cell renderer for possible processing.
Gtk.TextTag Signal	event (TextTag *self, Object object, Event event, TextIter iter*) : gboolean The ::event signal is emitted when an event occurs on a region of the buffer marked with this tag.
Gtk.TextTag Method	event (Object *event_object, Event event, TextIter iter) : gboolean Emits the "event" signal on the GtkTextTag*.
Gtk.Widget Signal	delete_event (Widget *self, Event event*) : gboolean The ::delete-event signal is emitted if a user requests that a toplevel window is closed.
Gtk.Widget Signal	destroy_event (Widget *self, Event event) : gboolean The ::destroy-event signal is emitted when a GdkWindow* is destroyed.
Gtk.Widget Signal	event (Widget *self, Event event*) : gboolean The GTK+ main loop will emit three signals for each GDK event delivered signal that matches the type of event delivered (e.g.
Gtk.Widget Signal	event_after (Widget *self, Event event) : none After the emission of the GtkWidget*::event signal and (optionally) the second more specific signal, ::event-after will be emitted regardless of the previous two signals handlers return values.
Gtk.Widget Method	drag_begin (TargetList *targets, DragAction actions, gint32 button, Event event*) : Gdk.DragContext Initiates a drag on the source side.
Gtk.Widget Method	event (Event *event*) : gboolean Rarely-used function.
Gtk.Widget Method	send_expose (Event *event*) : gint32 Very rarely-used function.
Gtk.Widget Method	send_focus_change (Event *event) : gboolean Sends the focus change event* to widget This function is not meant to be used by applications.
GtkSource.GutterRenderer Method	activate (TextIter *iter, RectangleInt area, Event event*) : none
GtkSource.GutterRenderer Method	query_activatable (TextIter *iter, RectangleInt area, Event event*) : gboolean
GtkSource.View Signal	line_mark_activated (View *self, TextIter object*, Event p0) : none