Don’t use this function. It sets the X Window System “class” and “name” hints for a window. According to the ICCCM, you should always set these to the same value for all windows in an application, and GTK+ sets them to that value by default, so calling this function is sort of pointless. However, you may want to call Window.setRole on each window in your application, for the benefit of the session manager. Setting the role allows the window manager to restore window positions when loading a saved session.

class Window


wmclassName string

window name hint

wmclassClass string

window class hint