obje_SetPos not work

gp_WedInterface->object_SelectObjectID(nesneid);
CObjEditInterface * oei=gp_WedInterface->object_GetEditInterfaceID(nesneid);

VECTOR3_STC pos1 = {0,0,0};
oei->obje_SetPos(pos1,true);

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why i cant change object position?

please help