pq09658.txt WB WHEN MAKING CONNECTION TO EXTERNAL C FUNCTION THAT 
               HAS ABTPOINTER PARM

When a C External Function part with a parameter of type AbtPointer  
  is used in the composition editor, selecting "connect->parm1"        
  causes a walkback in AbtConverter>>#primObjectToDisplay: due to      
  AbtPointer responding 'yes' to #abtCanBeEsString, the implementation 
  of which is inherited from OSPtr. 
Error message: 'Primitive failed in: OSPtr>>#uint8At: due to Invalid offset in receiver'

Fix: 
Delete the method:
	OSPtr>>#abtCanBeEsString