Gmagick::haspreviousimage
  Checks if the object has a previous image
  
 
  Description
  
   public mixed Gmagick::haspreviousimage
    ( void
   )
  
   
  
 
  Parameters
  This function has no parameters.
  
 
  Return Values
  
   Returns TRUE if the object has more images when traversing the list in the reverse direction, returns FALSE if there are none. 
  
  
 
  Errors/Exceptions
  
   Throws an
GmagickException on error.