gdk-drawing-initialize -- Setup the draw functions for drawing onto the root window.
gdk-drawing-initialized? -- Returns whether or not the module has been initialized.
gdk-drawing-get-gc -- Returns the gc used to draw on the root window.
gdk-drawing-get-drawable -- Returns the drawable object used to draw on the root window.
gdk-drawing-set-line-width! -- Set the width of the line to draw with.
gdk-draw-rectangle! -- Draw a rectangle on the root window.
gdk-draw-line! -- Draw a line on the root window.
gdk-draw-arc! -- Draw an arc on the root window.