Q59488: Don’t Use OPTION BASE 1 in UI Toolbox: "Illegal Function Call"

Article: Q59488
Product(s): See article
Version(s): 7.00
Operating System(s): MS-DOS
Keyword(s): ENDUSER | SR# S900228-24 | mspl13_basic
Last Modified: 12-MAR-1990

When writing programs that utilize the User Interface (UI) Toolbox
routines, it is not advisable to use the OPTION BASE 1 statement. This
can create run-time errors, such as "Illegal function call," because
the UI Toolbox uses index "zero" in arrays that must be in COMMON
SHARED between your modules.

This information applies to Microsoft BASIC Professional Development
System (PDS) Version 7.00 for MS-DOS.

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