National Instruments GPIB-PC - Manual (Page 87)

BASICA/QuickBASIC GPIB-PC Function Calls Section Four A
GPIB-PC User Manual 4A-12 ©National Instruments Corp.
New GPIB-PC Functions
Since QuickBASIC Version 4.0 now supports true functions, the
language interface has been expanded to include function versions of
the existing GPIB calls. Here are some important points to be aware of:
• All existing subroutines are still available via the CALL
statement, and existing applications do not require any
changes.
• The names of the new functions are identical to the existing
subroutines, except that the second letter of each name has
been changed from
B to L . For example, the subroutine IBSIC
is now also available as the function ILSIC .
• GPIB subroutine and function calls may be freely mixed
throughout a program.
• The include file QBDECL4.BAS contains a complete list of
both subroutine and function declarations, complete with
parameter list specifications to aid in type checking at compile
time. You must include this file in all application programs
using GPIB calls.
• In general, the functions behave identically to the subroutines
with the few exceptions noted in the following paragraph. The
description of each subroutine found in the GPIB-PC User
Manual can be applied to the new functions, except for the
syntax-specific information.