☜	Error Code M48 M[UMPS] by Example					☞

M48, Nonexistent window, element or choice

Introduced in the 1995 ANSI M[UMPS] Windowing Application Programmers’ Interface.

Values may be assigned to attributes by means of Set and Merge commands. If an application attempts to assign a value in this way to an attribute of a window or element, while that window or element does not exist at the time that the command in question is executed, this error will occur. After this, special variable $ERef will contain a value that indicates the reference to the structured system variable for which the error occurred.

In earlier printed versions of the 1995 ANSI M[UMPS] Windowing Application Programmers’ Interface, this error was identified as M?3.

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Copyright © Examples: 1995-2024 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2024 Ed de Moel.

The information in this page is NOT authoritative and subject to be modified at any moment.
Please consult the appropriate (draft) language standard for an authoritative definition.

Some specifications are "approved for inclusion in a future standard". Note that the MUMPS Development Committee cannot guarantee that such future standards will indeed be published.

This page most recently updated on 16-Nov-2023, 14:48:49.

For comments, contact Ed de Moel (demoel@jacquardsystems.com)