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Visual Basic for Applications Reference

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Code resource lock error (Error 455)

Specifics

This error can only occur on the Macintosh. When you access a code resource, you must lock it. This error has the following cause and solution:

  • A call was made to a procedure in a code resource. The code resource was found, but an error occurred when an attempt was made to lock the resource.

    Check for an error returned by Hlock, for example, "Illegal on empty handle" or "Illegal on free block".

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