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gtk / 3.24 / gtkgesturestylus.html

GtkGestureStylus

GtkGestureStylus — Gesture for stylus input

Functions

GtkGesture * gtk_gesture_stylus_new ()
gboolean gtk_gesture_stylus_get_axis ()
gboolean gtk_gesture_stylus_get_axes ()
GdkDeviceTool * gtk_gesture_stylus_get_device_tool ()

Signals

void down Run Last
void motion Run Last
void proximity Run Last
void up Run Last

Types and Values

GtkGestureStylus

Object Hierarchy

    GObject
    ╰── GtkEventController
        ╰── GtkGesture
            ╰── GtkGestureSingle
                ╰── GtkGestureStylus

Includes

#include <gtk/gtk.h>

Description

GtkGestureStylus is a GtkGesture implementation specific to stylus input. The provided signals just provide the basic information

Functions

gtk_gesture_stylus_new ()

GtkGesture *
gtk_gesture_stylus_new (GtkWidget *widget);

Creates a new GtkGestureStylus.

Parameters

widget

a GtkWidget

Returns

a newly created stylus gesture

Since: 3.24

gtk_gesture_stylus_get_axis ()

gboolean
gtk_gesture_stylus_get_axis (GtkGestureStylus *gesture,
                             GdkAxisUse axis,
                             gdouble *value);

Returns the current value for the requested axis . This function must be called from either the “down”, “motion”, “up” or “proximity” signals.

Parameters

gesture

a GtkGestureStylus

axis

requested device axis

value

return location for the axis value.

 [out]

Returns

TRUE if there is a current value for the axis

Since: 3.24

gtk_gesture_stylus_get_axes ()

gboolean
gtk_gesture_stylus_get_axes (GtkGestureStylus *gesture,
                             GdkAxisUse axes[],
                             gdouble **values);

Returns the current values for the requested axes . This function must be called from either the “down”, “motion”, “up” or “proximity” signals.

Parameters

gesture

a GtkGestureStylus

axes

array of requested axes, terminated with GDK_AXIS_IGNORE.

 [array]

values

return location for the axis values.

 [out][array]

Returns

TRUE if there is a current value for the axes

Since: 3.24

gtk_gesture_stylus_get_device_tool ()

GdkDeviceTool *
gtk_gesture_stylus_get_device_tool (GtkGestureStylus *gesture);

Returns the GdkDeviceTool currently driving input through this gesture. This function must be called from either the “down”, “motion”, “up” or “proximity” signal handlers.

Parameters

gesture

a GtkGestureStylus

Returns

The current stylus tool.

[nullable][transfer none]

Since: 3.24

Types and Values

GtkGestureStylus

typedef struct _GtkGestureStylus GtkGestureStylus;

Signal Details

The “down” signal

void
user_function (GtkGestureStylus *gesturestylus,
               double            arg1,
               double            arg2,
               gpointer          user_data)

Flags: Run Last

The “motion” signal

void
user_function (GtkGestureStylus *gesturestylus,
               double            arg1,
               double            arg2,
               gpointer          user_data)

Flags: Run Last

The “proximity” signal

void
user_function (GtkGestureStylus *gesturestylus,
               double            arg1,
               double            arg2,
               gpointer          user_data)

Flags: Run Last

The “up” signal

void
user_function (GtkGestureStylus *gesturestylus,
               double            arg1,
               double            arg2,
               gpointer          user_data)

Flags: Run Last

See Also

GtkGesture, GtkGestureSingle

© 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/GtkGestureStylus.html