]>
       

VDI command numbers:
   5:   Escape functions:
        Subopcode:
                1:      Inquire addressable character cells
                2:      Exit alpha mode
                3:      Enter alpha mode
                20:     Form advance
                21:     Output window
                22:     Clear display list
                23:     Output bit image file
                98:     Update metafile extents
                99:     Write metafile item
                100:    Change GEM VDI filename
    6:  Polyline
    7:  Polymarker
    8:  Text
    9:  Filled area
    11: GDP:
        subopcode:
                1:      Bar
                2:      Arc
                3:      Pie
                4:      Circle
                5:      Ellipse
                6:      Elliptical arc
                7:      Elliptical Pie
                8:      Rounded rectangle
                9:      Filled rounded rectangle
                10:     Jutified graphic text
    12: Set character height, absolute mode
    13: Set character baseline vector
    14: Set color representation
    15: Set polyline linetype
    16: Set polyline line width
    17: Set polyline color index
    18: Set polymarker type
    19: Set polymarker height
    20: Set polymarker color index
    21: Set text face
    22: Set graphic text color index
    23: Set fill interior style
    24: Set fill style index
    25: Set fill color index
    26: Inquire color representation
    32: Set writing mode
    35: Inquire current polyline attributes
    36: Inquire current polymarker attributes
    37: Inquire current fill area attributes
    38: Inquire current graphic text attributes
    39: Set graphic text allignment
    102: Extended inquire function
    103: Countour fill
    104: Set fill perimeter visibility
    106: Set graphic text special effects
    107: Set character cell height, points mode
    108: Set polyline end styles
    112: Set user defines fill pattern
    113: Set user defined line style pattern
    114: Fill rectangle
    117: Inquire character cell width
    129: Set clipping rectangle
    131: Inquire current face information