| Top |  |
 |
 |
 |
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 GdkWindows 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 |
|
src_y |
Source Y coordinate within |
|
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]