a GdkWindow
a state
the 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 rectangle to draw the diamond in
y origin of the rectangle to draw the diamond in
width of the rectangle to draw the diamond in
height of the rectangle to draw the diamond in
Draws a diamond in the given rectangle on window using the given parameters.