>>>I am trying to figure out how the use the XFRX preview, but the example does not seem to work for me:
>>>

lnRetVal = loSession.SetParams(,,,,,,"PREVIEWFRM")

>>>always returns -4.
>>>
>>>Does anybody have experience with xfrx report preview and can give me a hint what I am doing wrong?
>>
>>Hi Christian,
>>
>>PREVIEWFRM is unknow output type.
>>
>>See to help: https://eqeuscom.atlassian.net/wiki/display/DOC/XFRX+previewer
>>
>>MartinaJ
>

See to extension handler on the same web page.

USE invoices ORDER customer
LOCAL loSession, lnRetval, loXFF, loPreview, loScripts
loSession=EVALUATE([xfrx("XFRX#LISTENER")])
lnRetVal = loSession.SetParams("",,,,,,"XFF") && no name = just in memory
IF lnRetVal = 0
   REPORT FORM invoices OBJECT loSession              
   loXFF = loSession.oxfDocument
   *
   * initialize the previewer
   *
   SET CLASSLIB TO xfrxlib ADDITIVE
   loPreview = CREATEOBJECT("frmMPPreviewer")
   loPreview.setExtensionHandler(CREATEOBJECT("MyExtensionHandler"))
   loPreview.windowType = 0
   loPreview.iBook = 0
   loPreview.PreviewXFF(loXFF)
   loPreview.show(1)
ENDIF

MartinaJ

>Yes that is strange, because I copied it from their manual. I also tried the other code already, but have a problem to get an object reference for loXFF, it does not mention anything about this in the context. Do you know how that needs to be instantiated?
>

>loPreview = CREATEOBJECT("frmMPPreviewer")
>loPreview.oDisplayDefaults.StartingPage = 2
>loPreview.oDisplayDefaults.DefaultOutputFileName = "invoice15_09"
>loPreview.oDisplayDefaults.ZoomFactor = -1
>loPreview.oDisplayDefaults.PagesPerSheet = "1x1"
>loPreview.PreviewXFF(loXFF)
>loPreview.show(1)
>