Yikes. I guess that'll take alittle more research on my part! Thanks Bruce.

>Take a look at the BSTR section here
>
>http://www.codeproject.com/string/cppstringguide2.asp
>
>you probably need something like the STRUCT class to composr BSTRs in VFP.
>
>HTH
>
>Bruce
>
>>Trying to take help for VC++ and VB code and convert to VFP code.
>>
>>Here is the method help (from Gnostice activex pdf toolkit):
>>
>>

>>The MergeDocs method is used to merge a list of PDF documents into a current document.
>>
>>Syntax
>>   [VC++]
>>        void MergeDocs(const VARIANT& DocList)
>>   [VB]
>>        Sub MergeDocs(DocList)
>>Parameters
>>   DocList
>>   [in] Specifies list of filenames of the PDF documents to be merged. It is a VARIANT that contains a list of BSTRs (each BSTR being absolute pathname of the file to be merged).
>>

>>Here are some examples of my trials:
>>

>>*--Example of usage in my trials
>>firstform = "c:\foxpro\tmp\_abcd.pdf"
>>nextform = "c:\foxpro\tmp\_abcd_2.pdf"
>>
>>*--Trial one results in an OLE error code 0x8000ffff: Castastrophic failure
>>IF FILE(FULLPATH(nextform))
>>   IF nextform <> firstform
>>	IF FILE(FULLPATH(firstform))
>>  	   doclist = FULLPATH(firstform) + " " + FULLPATH(nextform)
>>           *Doclist now equals "c:\foxpro\tmp\_abcd.pdf c:\foxpro\tmp\_abcd_2.pdf"
>>	   WITH ofrmPDFTool.oPDFTool
>>		.MergeDocs(doclist) && results in Castastrophic failure error
>>	   ENDWITH
>>	ENDIF
>>   ENDIF
>>ENDIF
>>
>>*--Trial two results in an OLE error code 0x8000ffff: Castastrophic failure
>>IF FILE(FULLPATH(nextform))
>>   IF nextform <> firstform
>>	IF FILE(FULLPATH(firstform))
>>  	   doclist = FULLPATH(firstform) + "," + FULLPATH(nextform)
>>           *Doclist now equals "c:\foxpro\tmp\_abcd.pdf,c:\foxpro\tmp\_abcd_2.pdf"
>>	   WITH ofrmPDFTool.oPDFTool
>>		.MergeDocs(doclist) && results in Castastrophic failure error
>>	   ENDWITH
>>	ENDIF
>>   ENDIF
>>ENDIF
>>
>>*--Trial 3 results in an OLE error code 0x8000ffff: Castastrophic failure
>>IF FILE(FULLPATH(nextform))
>>   IF nextform <> firstform
>>	IF FILE(FULLPATH(firstform))
>>  	   doclist = FULLPATH(firstform) + ";" + FULLPATH(nextform)
>>           *Doclist now equals "c:\foxpro\tmp\_abcd.pdf;c:\foxpro\tmp\_abcd_2.pdf"
>>	   WITH ofrmPDFTool.oPDFTool
>>		.MergeDocs(doclist) && results in Castastrophic failure error
>>	   ENDWITH
>>	ENDIF
>>   ENDIF
>>ENDIF
>>
>>*--The 4th trial results in an OLE error code 0x8002000e: Invalid number of parameters
>>IF FILE(FULLPATH(nextform))
>>   IF nextform <> firstform
>>	IF FILE(FULLPATH(firstform))
>>	   WITH ofrmPDFTool.oPDFTool
>>		.MergeDocs(firstform,nextform) && results in invalid number of parameters error
>>	   ENDWITH
>>	ENDIF
>>   ENDIF
>>ENDIF
>>

>>
>>Is there something wrong with the syntax in calling the mergedoc method? Should the documents be separated by semicolons, commas, or something else?
>>
>>