GTK+ Reference Manual
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# GtkGammaCurve

## Name

GtkGammaCurve -- a subclass of GtkCurve for editing gamma curves.

## Synopsis

    #include <gtk/gtk.h>

    struct      GtkGammaCurve;
    GtkWidget*  gtk_gamma_curve_new             (void);

## Object Hierarchy

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

## Description

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

The GammaCurve 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.

## Details

### struct GtkGammaCurve

    struct GtkGammaCurve;

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);

Creates a new GtkGammaCurve.

Returns : | a new GtkGammaCurve.

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