forlang.hlp (Table of Contents; Topic list)
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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
getactivepage
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     The getactivepage function returns the number of the current
     active page. All hardware combinations support at least one page
     (page number 0). In OS/2, only page 0 is valid.
 
     Return Value
 
     The function returns the page number of the current active page.
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