Article ID: 47511 - Last Review: November 21, 2006 - Revision: 1.3

QuickBasic Must Be Main Program in Mixed-Language Calling

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SUMMARY

When writing a mixed-language program utilizing modules written in either Microsoft QuickBasic or Microsoft Basic Compiler, Basic must be the start-up controlling language. This step is necessary to activate the Basic language run-time support code.

For example, if a mixed-language program uses both C and QuickBasic modules, then QuickBasic must be the controlling language. Thus, C cannot call QuickBasic without QuickBasic first calling C.

This information applies to Microsoft QuickBasic Versions 4.00, 4.00b, and 4.50 for MS-DOS, to Microsoft Basic Compiler Versions 6.00 and 6.00b for MS-DOS and MS OS/2, and to Microsoft Basic PDS Version 7.00 for MS-DOS and MS OS/2.
APPLIES TO
  • Microsoft QuickBasic 4.0
  • Microsoft QuickBASIC 4.0b
  • Microsoft QuickBasic 4.5 for MS-DOS
  • Microsoft BASIC Compiler 6.0
  • Microsoft BASIC Compiler 6.0b
  • Microsoft BASIC Professional Development System 7.0
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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
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