@code{-} instead of a number; that represents @samp{-0} in a geometry
specification.
+@item icon-left
+The screen position of the left edge @emph{of the frame's icon}, in
+pixels, counting from the left edge of the screen. This takes effect if
+and when the frame is iconified.
+
+@item icon-top
+The screen position of the top edge @emph{of the frame's icon}, in
+pixels, counting from the top edge of the screen. This takes effect if
+and when the frame is iconified.
+
@item user-position
Non-@code{nil} if the screen position of the frame was explicitly
requested by the user (for example, with the @samp{-geometry} option).