code: def set_property(self, title, action, prop, matchClass=False):
          
          if matchClass:
              xArgs = ["-x"]
          else:
              xArgs = []
          self._run_wmctrl(["-r", title, "-b" + action + ',' + prop] + xArgs)
docs: Set a property on the given window using the specified action
  
          Usage: C{window.set_property(title, action, prop, matchClass=False)}
          
          Allowable actions: C{add, remove, toggle}
          Allowable properties: C{modal, sticky, maximized_vert, maximized_horz, shaded, skip_taskbar,
          skip_pager, hidden, fullscreen, above}
         
          @param title: window title to match against (as case-insensitive substring match)
          @param action: one of the actions listed above
          @param prop: one of the properties listed above
          @param matchClass: if True, match on the window class instead of the title