SET VIDEOMODE 
 Change the current video mode of the current application
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 Syntax

     SET VIDEOMODE TO <nVideoMode>

 Arguments

     nVideoMode is a numeric value representing a particular video mode.

 Description

     SET VIDEOMODE changes the current display to text mode and different
     graphic modes.  There are two modes supported by CA-Clipper:
     LLG_VIDEO_TEXT and LLG_VIDEO_VGA_640_480_16.

 Notes

     When switching from LLG_VIDEO_TEXT to LLG_VIDEO_VGA_640_480_16, all
     displayed text lines are converted to the equivalent graphic display.
     This conversion does not happen when switching back to LLG_VIDEO_TEXT
     mode.

     If you wish to have a part of your application switch to
     LLG_VIDEO_VGA_640_480_16 mode and clear the screen, issue the CLS
     command before switching modes.

 Files   Libraries are CLIPPER.LIB and LLIBG.LIB.