MS-DOS v6.22 Help: DISPLAY.SYS

---------------------- MS-DOS v6.22 Help: DISPLAY.SYS ----------------------
<Notes> <Examples>                                               <Index>
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                                DISPLAY.SYS

Enables you to display international character sets on EGA, VGA, and LCD
monitors. This device driver must be loaded by a <DEVICE> or <DEVICEHIGH>
command in your CONFIG.SYS file.

For an introduction to preparing your screen and keyboard for character
sets, see the chapter "Customizing for International Use" in the MS-DOS
User's Guide.

Syntax

    DEVICE=[drive:][path]DISPLAY.SYS CON[:]=(type[,[hwcp][,n]])

    DEVICE=[drive:][path]DISPLAY.SYS CON[:]=(type[,[hwcp][,(n,m)]])

Parameters

[drive:][path]
    Specifies the location of the DISPLAY.SYS file.

type
    Specifies the display adapter in use. Valid values include EGA and LCD.
    The EGA value supports both EGA and VGA display adapters. If you omit
    the type parameter, DISPLAY.SYS checks the hardware to determine which
    display adapter is in use. You can also specify CGA and MONO as values
    for type, but they have no effect because character set switching is not
    enabled for these devices.

hwcp
    Specifies the number of the character set that your hardware supports.
    The following list shows the character sets that MS-DOS supports and the
    country or language for each:

        437    United States
        850    Multilingual (Latin I)
        852    Slavic (Latin II)
        860    Portuguese
        863    Canadian-French
        865    Nordic

    Additional character sets are supported by the EGA2.CPI and EGA3.CPI
    files. For more information, see the COUNTRY.TXT file (located in the
    directory that contains your MS-DOS files).

    For more information about using character sets, see the appendix
    "Keyboard Layouts and Character Sets" in the MS-DOS User's Guide.

n
    Specifies the number of character sets the hardware can support in
    addition to the primary character set specified for the hwcp parameter.
    Valid values for n are in the range 0 through 6. This value depends on
    your hardware. For EGA display adapters, the maximum value for n is 6;
    for LCD display adapters, the maximum value for n is 1.

m
    Specifies the number of subfonts the hardware supports for each code
    page. The default value is 2 if type is EGA, and 1 if type is LCD.

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<Syntax> <Examples>
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                             DISPLAY.SYS--Notes

Using DISPLAY.SYS with monochrome or CGA display adapters

Because monochrome and CGA display adapters do not support character set
switching, using DISPLAY.SYS with either type of adapter has no effect.

Installing a third-party console driver

If you install both DISPLAY.SYS and a third-party console driver, such as
VT52.SYS, the third-party device driver must be installed first. Otherwise,
the third-party device driver may disable DISPLAY.SYS.

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<Syntax> <Notes>
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                            DISPLAY.SYS--Example

Suppose you want DISPLAY.SYS to support an EGA display adapter with the
United States hardware character set (437) and the potential for two
additional MS-DOS character sets. To do this and to specify that DISPLAY.SYS
is in the DOS directory on drive C, add the following line to your
CONFIG.SYS file:

    device=c:\dos\display.sys con=(ega,437,2)

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