═══ 1. About WatchDog ═══

 The WatchDog application is a utility which detects a hung desktop and calls 
DosShutdown to cleanly shut the file system down and re-enable CTRL-ALT-DEL. 
The program works by registering a PM timer for a set interval. Because PM is a 
single input queue, WM_TIMER messages will not be sent when the desktop is 
hung.  Another watchdog thread blocks on a semaphore with a timeout greater 
than this interval.  At each WM_TIMER message, the semaphore is cleared.  If 
this semaphore wait times out, the program assumes the desktop is hung.  A beep 
tone will sound and after a delay, the program calls DosShutdown. 

A legitimate (but poorly written) program might block the PM message queue 
longer than the selected timeout.  To handle this case, select the Disable menu 
option before starting the program.  The Watchdog program will be inactive 
until the Enable menu option is selected.  There is also a selectable delay 
before shutdown that allows you to terminate the application through CTRL-ESC 
before the Watchdog application shuts the system down. 


═══ 2. Help Menu ═══

Use the choices on the Help pull-down to display: 

Help index 
     Displays the index of help menu. 

General Help 
     Displays some information about Watchdog program. 

Keys Help 
     Displays a list of keys usage. 

Using Help 
     Provides detailed information on the kinds of help available and how to 
     use help. 


═══ 3. General Help ═══

Use this choice to get general help for the program. General help provides 
general information about the Watchdog program. 


═══ 4. Extended ═══

Use this choice to obtain information on how to use the Help facility. 


═══ 5. Tutorial of Keys ═══

Use this choice to see a list of keys and a description of the function of the 
keys. 


═══ 5.1. Key Assigments ═══

The list of keys is arranged in groups. 

ACCELERATOR KEYS 

HELP KEYS 

   F1 
        Get help 

   Esc 
        Previous Help Panel, or End help if only one panel 

   Alt 
        Switch IN/OUT action bar 

   Alt+F4 
        End help or End program 

  SYSTEM KEYS 

   Alt+Esc 
        Switch to the next program, including full-screen programs 

   Ctrl+Esc 
        Switch to the Task List 

  WINDOW KEYS 

   Underlined letter 
        Move among the choices on the action bar and pull-downs submenu or 
        execut the function chosen 


═══ 6. Index ═══

Use this choice to display the help index. 

The help index lists the titles of the help information that is available. 


═══ 7. Information ═══

This dialog displays information about the application, such as version number 
and copyright notice. 


═══ 8. Information ═══

The OK button closes the dialog box. 


═══ 9. Information ═══

Settings to control behaviour of Watchdog. 

Heartbeat Interval 
     Sets the interval between "heartbeat" (WM_TIMER) messages from OS/2.  The 
     minimum time period is 5 seconds.  A larger value results in a slightly 
     lower processor load.  The largest value OS/2 can accept is 65 seconds. 

Hang detection Interval 
     Controls the delay after a missing heartbeat message before considering 
     the desktop hung.  Note that the total time to detect a hang can be as 
     large as the sum of the Heartbeat interval and the hang detection 
     interval. 

Shutdown delay 
     Time interval after detecting hang until shutdown. Allows termination of 
     an application through CTRL-ESC if desktop is not really hung. 

Play Shutdown tones 
     Sound descending tones as shutdown period approaches.  The first and last 
     tone will always be generated. 

Start Minimized 
     Start minimized by default. 

Ok 
     Accept new settings 

Save 
     Accept new settings and save them to disk 

Cancel 
     Abandon all changes made to this screen. 

Help 
     Display this help screen 


═══ 10. Information ═══

This key will enable the "hang detection" in the Watchdog program. 


═══ 11. Information ═══

This key will temporarily disable the "hang detection" in the Watchdog program 
until ENABLE is selected. 


═══ 12. Information ═══

This dialog displays the user settings for the Watchdog program 
characteristics.