Function Module or Class Method to check all existing Workflows

Hi Experts,

My requirement is to check all the existing Workflow of an current instance. Is there any class method or Function module to get those lists of existing workflows of an current instance? I have tried to use Function Module 'SAP_WAPI_WORKITEMS_TO_OBJECT but it is not working for object type 'CL' . Here I'm using Class not the BOR object for the workflow.

Thanks & Regards,

Jeet.