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Error Code M54

M[UMPS] by Example

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M54, Attempt to create non-modal child of a modal parent

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

If an application attempts to create a child window of a modal window which is not also a modal window, 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?9.

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Copyright © Standard Documents; 1977-2017 MUMPS Development Committee;
Copyright © Examples: 1995-2017 Ed de Moel;
Copyright © Annotations: 2003-2017 Jacquard Systems Research.

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 29-Nov-2011, 21:30:57 .

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