PWB Extensions Help (ext.hlp) (Table of Contents; Topic list)
Important Notice
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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Screen and File Position Types
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     Type     Description
 
     COL      File column number (zero-based)
     LINE     File line number (zero-based)
     BYTE     General byte-sized object, often an x or y coordinate.
 
     Type/Member           Description
 
     fl                    File location
         LINE lin             Line
         COL  col             Column
 
     rn                    File range
         fl flFirst           Starting position
         fl flLast            Ending position
 
     ARC                   Screen rectangle
         BYTE axLeft          Left column
         BYTE ayTop           Top row
         BYTE axRight         Right column
         BYTE ayBottom        Bottom row
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