a GdkWindow
a state
type of shadow to draw
clip rectangle, or NULL if the output should not be clipped. [allow-none]
the widget. [allow-none]
a style detail. [allow-none]
x origin of the handle
y origin of the handle
with of the handle
height of the handle
the orientation of the handle
Draws a handle as used in GtkHandleBox and GtkPaned.