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- SCRUTIL 9.1 - (c) Kai Uwe Rommel - Aug 21 1991
-
- This is the first public release of SCRUTIL & SCRBLANK, the successor
- of the EGAUTIL screen saver (from which it inherited the version
- number). Beginning with this release, it now supports also 8514/A
- graphics cards. Because of this I have renamed it from EGAUTIL to
- SCRUTIL.
-
- This is a screen saver on which I am working already for a long time.
- It runs on EGA or VGA under DOS and has some special features. It
- monitors not only the keyboard but also a Microsoft-compatible mouse,
- if installed (compatible on driver level, Logimouse was tested with an
- earlier version). With the /8 option, it blanks also 8514/A graphics
- cards. This was tested with a WD (Paradise) 8514/A+ but should work
- with IBM and ATI 8514/A cards as well. It does not require any kind
- of resident adapter interface software to be loaded (such as IBM's
- HDI or WD's WDAI, they are not required). Also, it can blank a
- secondary monochrome Hercules display, if installed. See the help page
- for details.
-
- I added a DLL, SCRBLANK.EXE, for use under Windows. This DLL establishes a
- system hook and notifies the screen saver of Keyboard and Mouse events.
- They communicate via the multiplex interrrupt (INT 2F). This DLL works
- under Windows 3.0 or newer only (in all three modes, real, standard and
- 386 enhanced). The INT 2F seems to be clean to be called in protected
- mode, even in 286 standard mode (the INT 2F is the preferred method for
- communication with TSR's under DOS anyway). Without this DLL loaded, the
- screen will never be blanked in standard or enhanced mode.
-
- I have tested it under Windows 3.0 with heavy load and it always worked
- well. But if you have problems with it, please reportthem to me.
-
- The screen is blanked by completely switching off the display(s). That means
- if you would like some pictur/graphics/animation, then this one is not
- for you ..., but this has the advantage, that all the Windows do not have
- to be repainted, when the screen is switched back on.
-
- I wanted the screen (and the monochrome debugging display) to be
- *completely* blanked. I find these animated screen savers boring after a
- while - so I wrote one that is boring from the beginning :-)
-
- When running Windows with SCRBLANK.EXE, if the mouse is moved into the upper
- right corner of the display, the screen is blanked instantly. If it is
- moved into the lower right corner, the screen will never be blanked.
-
- When running plain DOS without Windows, the screen can be blanked manually
- by pressing Sys-Request (Alt-PrintScreen) and then the key S (short clicks
- are heard when pressing these two keys).
-
- Install the screen saver main program SCRUTIL.COM in AUTOEXEC.BAT with
-
- SCRUTIL /I /D:delay [/M] [/8] [/2]
-
- The delay is in minutes, /M means a mouse is installed (probably you all have
- one), /8 means a 8514/A is installed, /2 means a secondary monochrome display
- is installed.
-
- Put the SCRBLANK.EXE into WIN.INI into the "Load=" line
-
- Load=SCRBLANK ...
-
- (You perhaps have more programs listed in this line).
-
- Kai Uwe Rommel
- Munich
- rommel@informatik.tu-muenchen.de
-