-extern void draw_colorbars (Display *dpy, Window window,
- int x, int y, int width, int height);
+/* Renders colorbars (plus an xscreensaver logo) onto the
+ given Window or Pixmap. Width and height may be zero
+ (meaning "full size".)
+
+ Colors will be allocated from the cmap, and never freed.
+ */
+extern void draw_colorbars (Screen *, Visual *, Drawable, Colormap,
+ int x, int y, int width, int height,
+ Pixmap logo, Pixmap logo_mask);