GtkEventControllerMotion
GtkEventControllerMotion — Event controller for motion events
Functions
Types and Values
Object Hierarchy
GObject
╰── GtkEventController
╰── GtkEventControllerMotion
Includes
#include <gtk/gtk.h>
Description
GtkEventControllerMotion is an event controller meant for situations where you need to track the position of the pointer.
This object was added in 3.24.
Functions
gtk_event_controller_motion_new ()
GtkEventController *
gtk_event_controller_motion_new (GtkWidget *widget);
Creates a new event controller that will handle motion events for the given widget .
Parameters
widget |
Returns
a new GtkEventControllerMotion
Since: 3.24
Types and Values
GtkEventControllerMotion
typedef struct _GtkEventControllerMotion GtkEventControllerMotion;Signal Details
The “enter” signal
void
user_function (GtkEventControllerMotion *controller,
double x,
double y,
gpointer user_data)Signals that the pointer has entered the widget.
Parameters
controller |
The object that received the signal |
|
x |
the x coordinate |
|
y |
the y coordinate |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First
The “leave” signal
void
user_function (GtkEventControllerMotion *controller,
gpointer user_data)Signals that pointer has left the widget.
Parameters
controller |
The object that received the signal |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First
The “motion” signal
void
user_function (GtkEventControllerMotion *controller,
double x,
double y,
gpointer user_data)Emitted when the pointer moves inside the widget.
Parameters
controller |
The object that received the signal |
|
x |
the x coordinate |
|
y |
the y coordinate |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First
See Also
© 2005–2020 The GNOME Project
Licensed under the GNU Lesser General Public License version 2.1 or later.
https://developer.gnome.org/gtk3/3.24/GtkEventControllerMotion.html