Intermec Janus 2010 Reference Manual page 140

im_receive_input
im_receive_input
This procedure retreives input from the source and places it into the receive
Purpose:
buffer. You can use the im_get_length function after this procedure to get
the input length.
With Intrmecd_IO, Intrmecp_IO;
Syntax:
Use Intrmecd_IO, Intrmecp_IO;
procedure im_receive_input (
The allowed_source parameter defines the available input source and is one
IN Parameter:
or more of the following constants:
IM_LABEL_SELECT
IM_KEYBOARD_SELECT Keypad selected
IM_COM1_SELECT
IM_COM2_SELECT
IM_COM4_SELECT
IM_ALL_SELECT
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
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.
3-100
allowed_source : IN IM_ORIGIN;
timeout
: IN System.Word;
returned_source : OUT IM_ORIGIN;
ret_string : OUT String;
status_code : OUT System.Word);
Label selected
COM1 selected
COM2, scanner (2010 and 2050)
COM4 selected (RF only)
All selected
No wait