Generic function
Returns the icon associated with the specified frame.
frame-icon frame => icon
<frame>.
false-or(<image>).
duim-frames
duim-frames
Returns the icon associated with frame. This is the icon used to represent the frame when it has been iconized. In Windows 95 and Windows NT 4.0, this icon is also visible in the left hand corner of the title bar of the frame when it is not iconized.