	WINDOW HANDLER PANIC CODES
	==========================

	When a fatal error occurs, the window handler will display an error
	message on the console and then terminate. The message looks like

	  <name>: error code = <n1>, status = <n2>

	<name> is the name of the window handler module where the error
	occured (whgo, whwait, whp, or whl). The error code - <n1> - indicates
	the type of the error and in some cases the status - <n2> - gives
	additional information.
	The error code and status are explained below:

	  Error Code	Explanation

	       1	The '/win' directory is missing.
	       2	The window handler failed to mount itself on the
			'/win' directory.
	       3	The window handler cannot execute because an old
			version of the operating system is used or it is not
			started by the super user.
	       4	See error code 3.
	       5	See error code 3.
	       6	See error code 3.
	       7	See error code 3.
	       8	See error code 3.
	       9	The 'windev' device is missing, i.e. the character
			special file '/dev/windev'.
	      10	The window handler failed to open the console.
	      11	The window handler failed to initialize the keyboard.
	      12	The file '/usr/window/whp' is missing or cannot be
			executed.
	      13	The file '/usr/window/whl' is missing or cannot be
			executed.
	      14	The file '/usr/window/whgo' is missing or cannot be
			executed.
	      15	An internal bug in the window handler was detected.
			Status indicates which signal was generated.
