## GtkGammaCurve GtkGammaCurve — A subclass of GtkCurve for editing gamma curves |

## Synopsis

    #include <gtk/gtk.h>

    struct              GtkGammaCurve;
    GtkWidget *         gtk_gamma_curve_new                 (void);

## Object Hierarchy

      GObject
       +----GInitiallyUnowned
             +----GtkObject
                   +----GtkWidget
                         +----GtkContainer
                               +----GtkBox
                                     +----GtkVBox
                                           +----GtkGammaCurve

## Implemented Interfaces

GtkGammaCurve implements AtkImplementorIface, GtkBuildable and GtkOrientable.

## Description

The GtkGammaCurve widget is a variant of GtkCurve specifically for editing gamma curves, which are used in graphics applications such as the Gimp.

The GtkGammaCurve widget shows a curve which the user can edit with the mouse just like a GtkCurve widget. On the right of the curve it also displays 5 buttons, 3 of which change between the 3 curve modes (spline, linear and free), and the other 2 set the curve to a particular gamma value, or reset it to a straight line.

As of GTK+ 2.20, GtkGammaCurve has been deprecated since it is too specialized.

## Details

### struct GtkGammaCurve

    struct GtkGammaCurve;

### Warning

`GtkGammaCurve` is deprecated and should not be used in newly-written code.

The GtkGammaCurve struct contains private data only, and should be accessed using the functions below.

### gtk_gamma_curve_new ()

    GtkWidget *         gtk_gamma_curve_new                 (void);

### Warning

`gtk_gamma_curve_new` has been deprecated since version 2.20 and should not be used in newly-written code. Don't use this widget anymore.

Creates a new GtkGammaCurve.

Returns : | a new GtkGammaCurve.