home *** CD-ROM | disk | FTP | other *** search
-
- >>>> REQUIRES IBM ENHANCED GRAPHICS ADAPTOR <<<<
-
- Purpose:
- Smooth scrolling type file to screen.
-
- Usage:
-
- STYPE FILENAME
- or
- STYPE (uses standard in)
-
-
- Description:
- STYPE types a file to the screen controlled by an IBM Enhanced Graphics
- Adaptor, using variable speed smooth scroll. If no file name is supplied, it
- will read from standard in (eg: STYPE < FILENAME, or PROGRSM | STYPE), and
- thus can act as a "MORE" type filter. The EGA must be in 25 line character
- mode. The EGA need not be the current console device; it will behave the same
- either way. It can be emulating either the IBM Monochrome Display and Printer
- Adaptor or the IBM Color/Graphics Monitor Adaptor.
-
- The scroll speed may vary from stopped (0) to one line per vertical
- retrace (speed 14 in mono mode, or 8 in color mode), by units of 1/2. The
- speed represents the number of vertical pels scrolled per vertical retrace.
- (A speed of 1/2 means it scrolls 1 pel every 2 retraces, or speed 1 1/2 means
- it scrolls alternately 1 and 2 pels). The following commands may be typed
- while stype is showing the file:
-
- + increment speed by 1/2 unit (up to max speed)
- - decrement speed by 1/2 unit (down to zero, or stopped)
- 0-9 set speed to number given
- space set speed to zero (ie: stop immediately)
-
- Any other key will abort stype and return to DOS.
-
- Remember that "0" or space will stop the listing and set the speed
- at zero - a "+" or non-zero digit will restart it.
-
-
- Problems:
- It will not support graphic modes, nor the new character modes (eg:
- 43 lines, or a non-standard character height.
- It cannot detect what mode the EGA is in unless it is the current
- CON: device, so stange errors may result if the EGA is not your console and
- it is not a standard (mono or color) device (modes 2, 3, or 7).
-
- Author:
- Zhahai Stewart
- Highly Interactive Systems
- 6521 Old Stage Rd.
- Boulder, CO 80302
- (303) 449-8180
-
- Distribution:
- May be freely distributed if not for commercial advantage, and if
- the signon credits are not changed.
-