glutHideWindow (3) Linux Manual Page

glutHideWindow – Make the current window hidden

Library

OpenGLUT – window

Synopsis

In openglut.h Ft void Fn glutHideWindow void

Description

Even if a window is “open”, it need not be visible. It may be convenient to hide a window rather than to close it, if you want to re-display the window at the same location and size, later. Redefining all of the OpenGLUT features of a window and adding its Bf Li
 window id Ef
  to your tracking when re-opening a window may also be bothersome. So, rather than destroying it, you can simply ask for it to be hidden.

See Also

glutShowWindow(3)