Description
The most basic way to create a pixbuf is to wrap an existing
ArtPixBuf structure with a GdkPixbuf to add reference counting
capabilities to it. The gdk_pixbuf_new_from_art_pixbuf() performs
this operation.
As a convenience, you can use the gdk_pixbuf_new_from_data()
function to wrap an existing data buffer with a GdkPixbuf. You
need to specify the destroy notification function that will be
called when the data buffer needs to be freed; this will happen
when the pixbuf's reference count drops to zero and thus the
ArtPixBuf needs to be destroyed. If you have a chunk of static
data compiled into your application, you can pass in NULL as the
destroy notification function so that the data will not be freed.
The gdk_pixbuf_new() function can be used as a convenience to
create a pixbuf with an empty buffer. This is equivalent to
allocating a data buffer using malloc() and then wrapping it with
gdk_pixbuf_new_from_data(). The gdk_pixbuf_new() function will
compute an optimal rowstride so that rendering can be performed
with an efficient algorithm.
As a special case, you can use the gdk_pixbuf_new_from_xpm_data()
function to create a pixbuf from inline XPM image data.