Intermec Janus 2020 Reference Manual - Im_Irl_A

im_irl_a

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im_irl_a

Purpose:

This procedure retrieves input from bar code labels or the keypad in the

same manner as IRL ASCII input command A. This procedure returns the

input data to the buffer, edits reader commands, and displays input data.

For more information on IRL and command A, refer to the IRL Programming

Reference Manual.

Syntax:

With Intrmecd_IO, Intrmecp_IO;

Use Intrmecd_IO, Intrmecp_IO;

procedure im_irl_a (

timeout      : In System.Word;

test_table   : In IM_LENGTH_SPEC_ARRAY_PTR;

mask_string  : In String;

irl_string   : Out String;

cmd_count    : Out System.Word;

symbology    : Out IM_DECTYPE;

status_code  : Out System.Word);

IN Parameter:

The timeout parameter is the receive timeout period. You can exit the

function before data is received or before the timeout occurs by performing

an application break sequence (see your JANUS user’s manual). The return

status indicates whether the function was successful, a timeout occurred, or

the application break was received.

The numeric range for timeout is from 1 to 65,534 ms. You can also use one

of the following constants:

IM_ZERO_TIMEOUT

No wait

IM_INFINITE_TIMEOUT

Wait forever

If IM_INFINITE_TIMEOUT is selected, the function will not return until the

end of message character has been received.

Data is returned only if its length matches one of the five lengths specified

in the test_table. The test_table parameter must be a matrix in this form:

{a, b, c, d},

{a, b, c, d},

{a, b, c, d},

{a, b, c, d},

{a, b, c, d},