Wrong argument type on function sendsmtpmail

[mhermiz]

I get this error only when using this function (sendsmtpmail). The email is sent however is still get the error message below:

Specified argument type differs from required argument type at runtime in DLL function sendsmtpmail.
(invalid stack pointer on return from function call) at line 35 in function of_send_email of object nvo_pdf_printer.
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SendMail function works great!
I think the problem is that I'm not declaring the function incorrectly in my local external declaration. Here is how I am declaring it in my PB9 app:
Function long SendSmtpMail(String szHostname, long lPort, String szFrom, String Toadd, String CCadd, String BCCadd, String Subject, String as_Message, String FileNames, Long Options) library "cdintf210.dll"

Here is how I am calling it:
ll_rc = SendSmtpMail ( ls_SmtpHostName, long(ls_SmtpPort), astr_emailattribute.s_from, astr_emailattribute.s_to, astr_emailattribute.s_cc, astr_emailattribute.s_bcc, astr_emailattribute.s_subject, astr_emailattribute.s_message, astr_emailattribute.s_document_path+';'+astr_emailattribute.s_document_name, 0 )

I have gone through to make sure each argument is correct however I'm questioning the declaration and therefore the documentation the version that I have. I'm running 2.10

[Joan]

Hello,

Please set the FileName parameter in the following form:

"C:\Temp\Test.pdf;Document1.pdf"

C:\Temp\Test.pdf is the file name and path of your document, Document1.pdf is the name you want it to appear in the e-mail.

Hope this helps.

[mhermiz]

No that is not the problem. I have tried this. I understand what that parameter means. I think there is something deeper here.
Remember it sending the email. The only problem is the error message. After I click ok, it sends it. bizarre!!
Have the arguments changed at all in this dll???