Source GdkImage.
A colormap, or NULL to use the one for src. [allow-none]
Source X coordinate within drawable.
Source Y coordinate within drawable.
Destination X coordinate in pixbuf, or 0 if dest is NULL.
Destination Y coordinate in pixbuf, or 0 if dest is NULL.
Width in pixels of region to get.
Height in pixels of region to get.
dest, newly-created pixbuf if dest was NULL, NULL on error
Same as gdk_pixbuf_get_from_drawable() but gets the pixbuf from an image.