Bf Em
enable
Ef
Either
Bf Sy
GL_TRUE
Ef
or
Bf Sy
GL_FALSE
Ef
Sends the Icewm style message to all window managers (KDE, twm, blackbox, ratpoison, amiwm, and whatever others you have). Can we detect Icewm reliably and only send the Icewm formatted message for Icewm? Possibbly harmless as it stands, but looks wrong.
Should walk the tree of menus and glutPopWindow() (or all windows that are of menu-window type?).
Investigate making a workalike variant using glutPopWindow() to mimic the feature where not directly supported.