MS-DOS Device DriversApril 1998—————————————–(c) Copyright Microsoft Corporation, 1998This document provides complementary or late-breaking information to supplement the Microsoft Windows 98 documentation. ————————How to Use This Document————————To view Msdosdrv. txt on-screen in Notepad, maximize the Notepad window. To print Msdosdrv. txt, open it in Notepad or another word processor, and then on the File menu, click Print.
In syntax lines, except where noted, lowercase text signifies replaceable parameters and uppercase text signifies text that must be typed as it appears. NOTE: The Config. txt file contains more Help for MS-DOS commands. In addition, you can type the name of the command at the command prompt, followed by a slash and question mark (/?).
For example: CHKDSK /?If you have the Windows 98 CD, you can get additional help on MS-DOS commands, including syntax and examples. You can load the MS-DOS 6. 0 help file by browsing the oolsoldmsdos folder, and then clicking Help. ——– CONTENTS——–ANSI.
SYSDBLBUFF. SYS – DOUBLE BUFFERINGDISPLAY. SYSDRVSPACE. SYS, DBLSPACE.
SYSEMM386. EXEHIMEM. SYSRAMDRIVE. SYSSETVER.
EXE————————————ANSI. SYS=========NOTE: In this section, uppercase letters in syntax and ANSI escape sequences indicate text you must type exactly as it appears. ANSI. SYS defines functions that change display graphics, controls cursor movement, and reassigns keys. The ANSI. SYS device driver supports ANSI terminal emulation of escape sequences to control your system’s screen and keyboard.
This device driver must be loaded by a DEVICE or DEVICEHIGH command in your CONFIG. SYS file. Syntax DEVICE=drive:pathANSI. SYS /X /K /RParameterdrive:path Specifies the location of the ANSI. SYS file.
Switches/X Remaps extended keys independently on 101-key keyboards. /K Causes ANSI. SYS to treat a 101-key keyboard like an 84-key keyboard. It is equivalent to the command SWITCHES=/K.
If you usually use the SWITCHES=/K command, you will need to use the /K switch with ANSI. SYS. /RAdjusts line scrolling to improve readability when ANSI. SYS is used with screen-reading programs (which make computers more accessible to people with disabilities). Parameters used in ANSI escape sequences:Pn Numeric parameter. Specifies a decimal number.
Ps Selective parameter. Specifies a decimal number that you use to select a function. You can specify more than one function by separating the parameters with semicolons (;). PL Line parameter. Specifies a decimal number that represents one of the lines on your screen or on another device.
Pc Column parameter. Specifies a decimal number that represents one of the columns on your screen or on another device. ANSI escape sequences for cursor movement, graphics, and keyboard settings:In the following list of ANSI escape sequences, the abbreviation ESC represents the ASCII escape character 27 (1Bh), which appears at the beginning of each escape sequence. ESCPL;PcH Cursor Position: Moves the cursor to the specified position (coordinates). If you do not specify a position, the cursor moves to the home position–the upper-left corner of the screen (line 0, column 0). This escape sequence works the same way as the following Cursor Position escape sequence.
ESCPL;Pcf Cursor Position: Works the same way as the preceding Cursor Position escape sequence. ESCPnA Cursor Up: Moves the cursor up by the specified number of lines without changing columns. If the cursor is already on the top line, ANSI. SYS ignores this sequence. ESCPnB Cursor Down: Moves the cursor down by the specified number of lines without changing columns.
If the cursor is already on the bottom line, ANSI. SYS ignores this sequence. ESCPnC Cursor Forward: Moves the cursor forward by the specified number of columns without changing lines. If the cursor is already in the far right column, ANSI. SYS ignores this sequence.
ESCPnD Cursor Backward: Moves the cursor backward by the specified number of columns without changing lines. If the cursor is already in the far left column, ANSI. SYS ignores this sequence. ESCs Save Cursor Position: Saves the current cursor position. You can move the cursor to the saved cursor position by using the Restore Cursor Position sequence. ESCu Restore Cursor Position: Returns the cursor to the position stored by the Save Cursor Position sequence.
ESC2J Erase Display: Clears the screen and moves the cursor to the home position (line 0, column 0). ESCK Erase Line: Clears all characters from the cursor position to the end of the line (including the character located at the cursor position). ESCPs;. .
. ;Psm Set Graphics Mode: Calls the graphics functions specified by the following values. These specified functions remain active until the next occurrence of this escape sequence. Graphics mode changes the colors and attributes of text (such as bold and underline) displayed on the screen. Text attributesValueFunction ————————————0All attributes off1Bold on4Underscore (on monochrome display adapter only)5Blink on7Reverse video on8Concealed on Foreground colorsValueFunction ————————————30Black31Red32Green33Yellow34Blue35Magenta36Cyan37White
