In regard to the destory function of the receiver Obj in Grandiose

[ZaynSiv09]

I saw 'NDIlib_recv_destroy' in the grandiose_receive.cc in line 34.It is used in the 'addon.find()'.How can i use this 'destory()' function in other place ,for example,i can destory the receiver Obj or the video Obj when i finish receiving the NDI stream.i dont see any function like this.
plz help me!(●'◡'●)