GT_COMPN() Compress a Clipper Numeric value into a string
GT_DATEPACK() Pack a Clipper date value down to 50% it's original size.
GT_DATEUNPACK() Un-Pack a packed date created to GT_DatePack().
GT_RLECOMP() Compress a string or screen image with RLE.
GT_RLEUNCO() Un-Compress a string or screen image.
GT_UNCOMPN() UN-Compress a String to a Clipper Numeric value