Gmagick::getimagecolors
   Returns the color of the specified colormap index
  
 
  Description
  
   public int Gmagick::getimagecolors
    ( void
   )
  
  
 
  Parameters
  This function has no parameters.
  
 
  Return Values
  
   The number of colors in image.
  
  
 
  Errors/Exceptions
  
   Throws an
GmagickException on error.