Custom fax solution

The custom fax solution interface consists of these functions:

init.fax

Syntax:
     function extern long init.fax(
                 ref string o.error.message)
Description:
     Use this function to initialize the fax message.
Arguments:
     o.error.message: output argument which contains the error message, or an empty string
Return value: 0 if processing without errors, otherwise the error code

add.fax.attachment

Syntax:
     function extern long add.fax.attachment(
                 const string i.filename,
                 const string i.displayname,
                 ref string o.error.message)
Description:
     Use this function to add an attachment to the fax message.
Arguments:
     i.filename: input argument which contains the name of the file.
     i.displayname: input argument which contains the name to be displayed in the message
     o.error.message: output argument which contains the error message, or an empty string
Return value: 0 if processing without errors, otherwise the error code

set.fax.number

Syntax:
     function extern long set.fax.number (
		            const string i.fax.number,
              ref string o.error.message)
Description:
     Use this function to set the fax number. 
Arguments:
		   i.fax.number: The faxnumber to which the fax must be sent.
     o.error.message: output argument which contains the error message, or an empty string
Return value: 0 if processing without errors, otherwise the error code

send.fax

Syntax:
     function extern long send.fax(
                 ref string o.error.message)
Description:
     Use this function to send the fax.
Arguments:
     o.error.message: output argument which contains the error message, or an empty string
Return value: 0 if processing without errors, otherwise the error code

cancel.fax

Syntax:
     function extern long cancel.fax(
                 ref string o.error.message)
Description:
     Use this function to cancel the fax.
Arguments:
     o.error.message: output argument which contains the error message, or an empty string
Return value: 0 if processing without errors, otherwise the error code