GdkPixbuf Interaction

GdkPixbuf Interaction — Functions for obtaining pixbufs

Functions

GdkPixbuf * gdk_pixbuf_get_from_surface ()

Includes

#include <gdk/gdk.h>

Description

Pixbufs are client-side images. For details on how to create and manipulate pixbufs, see the GdkPixbuf API documentation.

The functions described here allow to obtain pixbufs from GdkSurfaces and cairo surfaces.

Functions

gdk_pixbuf_get_from_surface ()

GdkPixbuf *
gdk_pixbuf_get_from_surface (cairo_surface_t *surface,
                             gint src_x,
                             gint src_y,
                             gint width,
                             gint height);

Transfers image data from a cairo_surface_t and converts it to an RGB(A) representation inside a GdkPixbuf. This allows you to efficiently read individual pixels from cairo surfaces.

This function will create an RGB pixbuf with 8 bits per channel. The pixbuf will contain an alpha channel if the surface contains one.

Parameters

surface

surface to copy from

 

src_x

Source X coordinate within surface

 

src_y

Source Y coordinate within surface

 

width

Width in pixels of region to get

 

height

Height in pixels of region to get

 

Returns

A newly-created pixbuf with a reference count of 1, or NULL on error.

[nullable][transfer full]

Types and Values