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 SETMODE()
 Change display mode to a specified number of rows and columns
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 Syntax

     SETMODE(<nRows>, <nCols>) --> lSuccess

 Arguments

     <nRows> is the number of rows in the desired display mode.

     <nCols> is the number of columns in the desired display mode.

 Returns

     SETMODE() returns true (.T.) if the mode change was successful;
     otherwise, it returns false (.F.).

 Description

     SETMODE() is an environment function that attempts to change the mode of
     the display hardware to match the number of rows and columns specified.
     The change in screen size is reflected in the values returned by
     MAXROW() and MAXCOL().

     Note:  In LLG_VIDEO_TXT mode, and when a VESA driver is present, it
     is possible to use the following values :
     25,80 | 43,80 | 50,80 | 60,80 | 25,132 | 43,132 | 50,132 | 60,132

 Examples

     .  This example switches to a 43-line display mode:

        IF SETMODE(43, 80)
           ? "43-line mode successfully set"
        ELSE
           ? "43-line mode not available"
        ENDIF

     .  This example switches the video mode to regular text mode with
        60 rows and 132 columns:

        // Switch to text mode
        SET VIDEOMODE( LLG_VIDEO_TXT )
        // Set the video mode to the largest number of characters
        SETMODE( 60,132 )

 Files   Library is CLIPPER.LIB.