Multimedia :

 These commands deal with Sound, Images, Speach etc, hence the
 "Multimedia" bit.. 

  Palette       LOAD|SAVE|SET|GET|REMAP Src Dest
  SetColor      GuiFile ColorNumber R G B
  Speak         Text

  Images        
    LOADIMAGE    ImageFile Alias ScreenName|NoRemap
    FREEIMAGE    Alias
    IMAGE        Left Top Alias
    CHANGEIMAGE  GuiFile GadID Left Top Alias

  Sound Effects 
    LOADSOUND FileName Alias
    FREESOUND Alias
    PLAYSOUND Alias
    SETSOUND  Alias VOLUME/SPEED value 

 * GCView and GCSound
 -------------------
 A *LOT* more can be done with the use of 2 "sister" programs 
 to Gui4Cli, "GCView" and "GCSound", both of which can be found, 
 together with their docs in the GUIs:ext directory. 

 These can easily be called from Gui4Cli with the  Call  command.