Hi Rick,

please implement into UnlockSemaphore: -> befor you use the cSemaphoreFile -> check if cSemaphoreFile exists.

Run into error:

Do ..\wconnect728\classes\wwpdf.fxp
loPdf = CREATEOBJECT("wwPDF")
loPdf = null

Fixed Code:

IF !USED("wwPDF")
	IF FILE(THIS.cSemaphoreFile)
		USE (THIS.cSemaphoreFile) ALIAS wwPDF IN 0
	ENDIF
ENDIF

Thanks...

I think it probably needs to be like this:

PROTECTED FUNCTION UnlockSemaphore
lcOldAlias = ALIAS()

IF !USED("wwPDF")
   IF FILE(THIS.cSemaphoreFile)
   		USE (THIS.cSemaphoreFile) ALIAS wwPDF IN 0
   ENDIF
ENDIF
IF USED("wwPDF")
	SELE wwPDF 
	UNLOCK
		
	IF !EMPTY(lcOldAlias)
	   SELE (lcOldAlias)
	ENDIF
ENDIF
   
RETURN
ENDFUNC

Hi Rick,

yes, that's it.

Toni