home *** CD-ROM | disk | FTP | other *** search
- Documentation for CLOCK Command
-
- Screen clock is a short machine language program that prints the
- day of the week,date,current time,and log-on time at the top of the screen
- no matter what else your computer is doing. Clock relys on BIOS to handle
- this has several fortunate consequences:
- - Sysline(clock) updates are not redirected to a file if you are using
- DOS file redirection.
- - Sysline updates are not printed if you are echoing output to the printer
- (but is printed if you press PrtSc for a screen dump.
- - Screen Clock always updates the current "active" screen. It doesn't
- matter if you switch from monochrome monitor to color,change pages in the
- color screens, or even enter a graphics mode. Clock will always be there.
-
- USING CLOCK
- Just type in clock at the DOS prompt. A sysline similar to this will appear.
-
- Wed Jan 01,1986 12:01A (00:01)
-
- The day of the week,date,and current time are self-explainatory. The figure in
- parentheses is the elasped time(in hours and minutes) since the clock command
- was started or reset.
- When you run clock from DOS you can select various options by appending
- commands after typing CLOCK. Each command consists of a slash(/)symbol, a number
- and or character. Here are the commands and options:
-
- /Cn (Chime) where n is an integer from 0 to 3. /C0 means no chiming(the
- default); /C1 makes clock chime hourly; /C2 chimes every half-hour,
- and /C3 chimes every 15 minutes. Even if screen updates are turned off
- Clock chimes as you told it to do.
-
- /Un (Update) where n is an interger from 1 to 9. This sets how often screen
- updates take place - n is the number of half seconds between updates.
- The more frequent the updates,the more the more often the time is refreshed
- HOWEVER, more frequent updates also make other programs run slower.
- The default is /U2 (one second between updates).
-
- /M (Military time). This selects Military (24 hour) time.
-
- /S (Standard time). This selects standard 12-hour time with A.M./P.M.
- marker. This is the default.
-
- /R (Reset). This resets the logon timer. Screen clock resets itself to
- 00:00 when first run.
-
- For example, typing CLOCK /U3/M/C1 at the DOS prompt loads and runs clock,
- sets updates every 1 1/2 seconds,sets military time, and makes the clock chime
- ever hour.
-
- DISAPPEARING CLOCK
-
- Occasionally, clock's Sysline may get in the way(hiding text printed on the
- top line of the screen). You can make the time disappear by pressing:
-
- CTRL and BOTH SHIFT keys simultaneously.
-
- Pressing the combination again turns the Sysline back on.
-
- Since Screen Clock maintains its own clock, it might not agree with the DOS
- clock precisely. Generally, it's never more than 30 seconds off.
- When you reset the system date or time type clock again to resync it.
-
- Clock steals time from the running program,so if you are running a program
- that is a heavy number cruncher you might want to turn the Sysline off to
- improve the performance of the program.
-
- This program and non abbrevated documentation appeared in the
- April 1986 issue of Compute Magazine Page 107. Written by
- Marc Sugiyama
-
- This documentation and program was prepared for the CCLA network
- by S. Cunningham 6-12-86
-