Introduction    Graphics
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 Degrade()       Makes a progressive degrade of the palette
 DispChar()      Writes a character on the screen
 DispStr()       Writes a string on the screen
 gBox()          Draws a box in graphic mode
 gCircle()       Draws a circle in graphic mode
 GetPixel()      Informs of the colour of a point in graphic mode
 gEllipse()      Draws an ellipse in graphic mode
 gifColors()     Returns the number of colours of a GIF
 gifIsGIF()      Indicates if a file has GIF format or not
 gifIsPalette()  Determines if the GIF has palette or not
 gifShow256()    Shows a 320x200x256 GIF on the screen
 gifVersion()    Returns the version of a GIF
 gifX()          Returns the width of a GIF
 gifY()          Returns the heigth of a GIF
 gLine()         Draws a line in graphic mode
 GraphBar()      Bar graphics with CA-Clipper!!
 GraphBar2()     Another bar graphics with CA-Clipper!!
 GraphEllipse()  Pie graphics with CA-Clipper!!
 GraphTart()     Another pie graphics with CA-Clipper!!
 IsCGA()         Detects if a CGA card exists
 IsEGA()         Detects if a EGA card exists
 IsHerc()        Detects if an Hercules card exists
 IsLCD()         Detects if a LCD monitor exists
 IsVESA()        Detects if the graphic system is VESA compatible
 IsVGA()         Detects if a VGA card exists
 Legend()        Draws and fills a square and a text optionally
 Origin()        Modifies the video origin in the CRT controller
 Palette()       Returns the actual colour palette
 pcxBitsPixel()  Returns the number of bits per pixel of the PCX
 pcxIsPCX()      Indicates if a file has PCX format or not
 pcxShow()       Shows a 16 colours PCX on screen
 pcxShow256()    Shows a 320x200x256 PCX on screen
 pcxPlanes()     Returns the number of planes of the PCX
 pcxPalette()    Returns the colours palette of the PCX
 pcxResH()       Returns the horizontal resolution of the PCX
 pcxResV()       Returns the vertical resolution of the PCX
 pcxVersion()    Returns the format version of the PCX file
 pcxX1()         Returns the initial coordinate X of the PCX
 pcxX2()         Returns the final coordinate X of the PCX
 pcxY1()         Returns the initial coordinate Y of the PCX
 pcxY2()         Returns the final coordinate Y of the PCX
 SetEGA()        Makes active the 640x350 16 colours EGA mode
 SetPixel()      Draws a point in graphic mode
 SetVGA()        Makes active the 640x480 16 colours VGA mode
 SetVGA256()     Makes active the 320x200 256 colours VGA mode
 TxtMode()       Makes active the 80x25 text mode
 Upgrade()       Makes a progressive restore of the palette
 VESAMode()      Makes active the VESA video mode
 VESAOEM()       Returns the OEM of the VESA driver
 VESAVer()       Returns the VESA driver version
 VideoMode()     Returns and/or changes the video mode