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─────Run-Time Library───────────────────────────────────────────────────────
 
     The _wabout function sets the string that appears in the About
     dialog box of a QuickWin program. This routine is used only in
     QuickWin programs; it is not part of the Windows API. For full
     details about QuickWin, see Chapter 8 of the Programming
     Techniques manual.
 
     When the user chooses the About command from the Help menu, a
     dialog box appears containing the string set with _wabout. If a
     QuickWin program does not include a call to _wabout, information
     about QuickWin itself is displayed by default.
 
     Pass a null-terminated string in <string>.
 
     The maximum string length is 256 bytes. It can include newline
     characters.
 
     Return Value
 
     The _wabout function returns 0 if successful. A nonzero return
     value indicates an error.
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