Guardian Procedure Calls Reference Manual

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1321

Table 44 SETMODE Functions (continued)

Parameters and EffectFunction

NOTE: Although the cursor typically will not move when 0 or 1 is specified for param1, these options

do not turn off ECHO. Therefore, if the termination character is one which would normally cause cursor

movement (such as a LF or CR) and ECHO is enabled, cursor movement will occur.

SETMODEs 40-49 are reserved for the Exchange products. For details, see the Exchange reference manuals.

Enable/disable 3270 COPY50

suppress COPY= 0param1

allow COPY= 1

Get/set 3270 status51

param1 status flags mask to set

param2 is not used with function 51

For the flags mask information, see the Device-Specific Access Methods - AM3270/TR3271 manual.

Tape drive: Set short write model52

allow writes shorter than 24 bytes; a record shorter than 24 bytes is

padded with zeros to a length of 24 bytes (default).

= 0param1

disallow writes shorter than 24 bytes.= 1

allow writes shorter than 24 bytes; no padding is done on records

shorter than 24 bytes.

= 2

param2 is not used with function 52.

NOTE: When short writes are disallowed, an attempt to WRITE or WRITEUPDATE a record that is shorter

than 24 bytes causes error 21 (bad count) to be issued.

Enable/disable receipt of status53

disable status receive= 0param1

enable status receive= 1

= the response IDparam2

Return control unit and device assigned to subdevice54

param1 is not used with function 54.

param2 is not used with function 54.

= 0.<0:7>[0]last-params

= subdevice number known by AM3270.<8:15>

= standard 3270 control-unit address.<0:7>[1]

= standard 3270 device address.<8:15>

Disk: Set serial writes option57

system automatically selects serial or parallel writes (default).= 0param1

use serial writes unconditionally.= 1

param2 is used with DP2 disk files only.

setting of param1 affects this open only. Other opens of the file are

not affected

= 0param2

setting of param1 affects this open and all future opens of the file.

Other existing opens are not affected.

= 1

1330 Guardian Procedure Calls (S)