GtkDrawingArea
Widget for custom user interface elements.
Object Hierarchy
Direct subclasses
Description
A GtkDrawingArea is a widget whose
GdkWindow can be drawn to. You could use it to
create a new user interface element, or an updateable graph, or pretty
much anything, using the GDK and GTK draw and paint functions.
Because it is in itself so featureless, everything has to be added to
a GtkDrawingArea. It will not respond to key or
button press events, unless you give it the ability to do so using
set_events() or
add_events() . It cannot have
keyboard focus, unless you set the GTK_CAN_FOCUS
flag. It does not regard what is drawn upon it as a clue to sizing, so
you have to size it. If you want it to react to resizing, you will need
to connect it to an appropriate callback via the
"configure-event" signal in
order to do so. It has no defining behaviour, beyond the ability to
manufacture configure events when it is allocated a new size. It's
basically a completely empty widget.
Redraws should be created through an
"expose-event" handler.
Constructor
--
Constructs a blank, drawable widget.
Methods
size()
Sets the size of the drawing area.
