Int 2F/AX=1A21h

AVATAR.SYS - SET DRIVER STATE

AX = 1A21h (AL='!')
DS:SI -> command string with one or more state characters (see #02736)
CX = length of command string

Return:
CF set on error (invalid subfunction)
CF clear if successful

Note: The characters in the state string are interpreted left to right, and need not be in any particular order

See Also: AX=1A00h/BX=4156h - AX=1A3Fh



(Table 02736)
Values for AVATAR.SYS state characters:
'a'    activate driver
'd'    disable driver
'f'    use fast screen output
'g'    always convert gray keys (+ and -) to function keys
'G'    never convert gray keys
'l'    convert gray keys only when ScrollLock active
's'    use slow screen output
't'    Tandy 1000 keyboard (not yet implemented)

Category: Video - Int 2Fh - A

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