Tandy 600 Programmer's Reference Manual page 103

Bios programmers
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Function 14h
-
Get
Current Sort
Key
Definition
Parameter
Block:
00:
FILEJHANDLE
File Identifier
01:
NUMBER._OF_
KEYS
Number
of
sort
key
fields to
return
02:
SORT_KEY
Buffer
to
receive
sort
key
Returr
i
Value:
AX:
STATUS
Number
of sort
key
fields
or Error
This
function
will
return
all
or
a
portion
of
the
current
sort
key
in
effect
for
the specified
database
file.
The
NUMBEROFKEYS
field
specifies the
number
of
key
fields to
be
returned.
The
key
fields
returned
will
always be
the
first
N
defined
fields.
The
return
value
in
AX
specifies
the
number
of
key
fields
actually transferred.
This
will
always be
less
than
or
equal
to
the
number
requested.
If
the
NUMBEROFKEYS
parameter
is
0,
no
data
will
be
transferred
but the return
value
in
AX
will
be
the
number
of fields
in
the
sort key.
Error
Returns:
98

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