Hi,

I see Fred has pre-empted my next suggestion (Maybe there's a property that will give you the expected return size)

>lnResult returns 0 which is "go ahead" or "ok" value. Nothing trapped in AERROR() either.
>
>Dennis
>
>
>>Hi,
>>
>>So what's the value of lnResult? Anything useful in AERROR()?
>>Regards,
>>Viv
>>
>>>>Have you looked at COMARRAY()?
>>>
>>>Yup, I did too... to no avail...
>>>
>>>I just can't 'get' or capture the returned value from the Export method of the object PTEMPLATE.
>>>
>>>In the Digital Persona documentation, the Export method is supposed to return a "blob of byte array"...
>>>
>>>Below, is the latest code I have:
>>>
>>>

>>>*** ActiveX Control Event ***
>>>LPARAMETERS ptemplate
>>>
>>>LOCAL lbFingerPrnt, lnResult, laFingerPrint
>>>
>>>WAIT WINDOW NOWAIT "Creating Employee Record..." NOCLEAR
>>>
>>>COMARRAY( ptemplate, 10+1000 )   && I tried diff parameter combinations here
>>>
>>>laFingerPrint = ""               && also used CREATEBINARY( " " )... to no avail either
>>>
>>>lnResult = ptemplate.Export( @laFingerPrint )
>>>
>>>IF lnResult # Er_OK
>>>   MESSAGEBOX( "Error in getting Registration Template" )
>>>   RETURN
>>>ENDIF
>>>
>>>IF EMPTY( laFingerPrint )
>>>   MESSAGEBOX( "Empty FINGERPRNT blob value!" )
>>>   RETURN
>>>ELSE
>>>   MESSAGEBOX( "Hurray! FINGERPRNT blob value detected!" )
>>>ENDIF
>>>
>>>APPEND BLANK IN employee
>>>REPLACE employee.lastname WITH thisform.txtLastname.Value,;
>>>        employee.firstname WITH thisform.txtFirstname.Value,;
>>>        employee.fingerprnt WITH laFingerPrint
>>>
>>>WAIT CLEAR
>>>
>>>

>>>
>>>Thanks for any help...
>>>
>>>Happy Holidays!
>>>
>>>Dennis
>>>
>>>
>>>
>>>>Hi,
>>>>
>>>>Have you looked at COMARRAY()?
>>>>>Hi Everybody,
>>>>>
>>>>>I am tinkering with a fingerprint scanner ActiveX control (Digital Persona).
>>>>>
>>>>>Instantiating, dropping and working with it seems to go on smoothly... till the last event called Done(), where it passes a "Fingerprint Template - FPTemplate" object variable.
>>>>>
>>>>>This is the code I created in the ActiveX control's Done() event:
>>>>>
>>>>>

>>>>>*** ActiveX Control Event ***
>>>>>LPARAMETERS ptemplate
>>>>>
>>>>>LOCAL lblobFingerPrnt, lnResult
>>>>>
>>>>>WAIT WINDOW NOWAIT "Creating Employee Record..." NOCLEAR
>>>
>>>>>
>>>>>lnResult = ptemplate.Export( @lblobFingerPrnt )
>>>>>
>>>>>IF lnResult # Er_OK
>>>>>   MESSAGEBOX( "Error in getting Registration Template" )
>>>>>   RETURN
>>>>>ENDIF
>>>>>
>>>>>APPEND BLANK IN employee
>>>>>replace employee.lastname WITH thisform.txtLastname.Value,;
>>>>>        employee.firstname WITH thisform.txtFirstname.Value,;
>>>>>        employee.fingerprnt WITH lblobFingerPrnt
>>>>>
>>>>>WAIT CLEAR
>>>>>

>>>>>
>>>>>I get "Data type mismatch" using the above. Going thru the Debugger, the value of variable lblobFingerPrnt is always .F. and is never updated even when invoking the Export method.
>>>>>
>>>>>This 'ptemplate' object variable, as per it's documentation, has an Export method, like so:
>>>>>
>>>>>

>>>>>Export([out] VARIANT* pVal, [out,retval] AIErrors *pErr)
>>>>>
>>>>>* Exports the template object as a signed blob of bytes.
>>>>>* This may then be saved by the developer in the database of his choice.
>>>>>

>>>>>
>>>>>HELP! Obviously it has something to do with a VARIANT data type. Furthermore, the employee.fingerprnt field is of Blob type. Could this be wrong?
>>>>>
>>>>>Thanks in advance!
>>>>>
>>>>>Happy Holidays! Cheers!
>>>>>
>>>>>Dennis