The FvwmScroll module prompts the user to select a target window, if the module was not launched from within a window context in Fvwm. After that, it adds scroll bars to the selected window, to reduce the total desktop space consumed by the window.
Operation is fine with windows that have a private colormap.
The FvwmScroll program, and the concept for interfacing this module to the Window Manager, are all original work by Robert Nation. Copyright 1994, Robert Nation. No guarantees or warranties or anything are provided or implied in any way whatsoever. Use this program at your own risk. Permission to use this program for any purpose is given, as long as the copyright is kept intact.