In this example, the extension contains several classes. The object created depends on the string value of the class name passed in.

PBXEXPORT PBXRESULT PBXCALL PBX_CreateNonVisualObject
(
   IPB_Session*          pbsession,
   pbobject              pbobj,
   LPCTSTR               xtraName,
   IPBX_NonVisualObject  **obj
)
{
   PBXRESULT result = PBX_OK;
 
   string cn(className);
   if (cn.compare("class_a") == 0)
   {
      *obj = new class_a(pbobj);
   }
   else if (cn.compare("class_b") == 0)
   {
      *obj = new class_b(pbobj);
   }
   else if (cn.compare("class_c") == 0)
   {
      *obj = new class_b(pbobj);
   else
   {
      *obj = NULL;
      result = PBX_E_NO_SUCH_CLASS;
   }
 
   return PBX_OK;
};