FormBase::AddFormAttributesCallback (open)
Register form attributes callbacks, use by fields that (only) need to add data to the <form>
Syntax
LOADLIB "mod::publisher/lib/forms/base.whlib";
MACRO AddFormAttributesCallback(MACRO PTR toadd)
Parameters
MACRO PTR toadd
Callback to add which will be invoked when the formattributes are rendered