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WBOARD()

Syntax:     WBOARD() ([<expN1>,<expN2>,<expN3>,<expN4>])

Arguments:  <expN1>...<expN4>

Returns:    A numeric value.
            If no errors occur then 0 is returned; otherwise -1 is returned.

Usage:      This function defines a specific portion of the screen as the
            area in which all windows are allowed.  Windows will
            subsequently only be visible in this area.  It is possible
            to use this function in order to protect an area of the screen
            from being overwritten with windows even when boundaries denoted
            by WBOARD() will become the screen boundaries for the windows
            functions.

            WBOARD() will only operate when all windows are closed.
            If no arguments are passed, WBOARD() will default to 0,0,24,79.

Library:    CT1.LIB


--------------------------------- Example ------------------------------

Examples:   WBOARD(0,0,12,79)


            This will only allow the window functions to use the upper
            half of the screen.