When INVOICES extensions are initialized, a link is created between INVOICES’ Application object and the extension.
After an extension is loaded, INVOICES calls its Connect method. The name of the INI file and the name of section for this extension are passed as parameters together with the Application object.
The purpose of the Connect method is to save a reference to the application object to be used later on. If the extension needs extra configuration information, it can read it from the INI file and section that were passed as parameters in the Connect call.
During initialization, the extension must set up the events it needs. This is done via several calls to INVOICES’ Subscribe method.
INVOICES programs usually use DLL extensions internally, so normally you do not need to use this feature.
Plug-in methods to use in INVOICES extensions
Setting an ActiveX object as an INVOICES extension