Caché ObjectScript Reference - InterSystems Documentation

System and Other FunctionsEstablishing ID ValuesTo load a DLL and return its ID, use the following syntax:dll_id=$ZF(-4,1,dll_name)To look up a function from a DLL loaded by $ZF(-4,1), and return an ID for that function,use the following syntax:func_id=$ZF(-4,3,dll_id,func_name)To execute a function located by $ZF(-4,3), use $ZF(-5).To unload a specific DLL loaded by $ZF(-4,1), use the following syntax:$ZF(-4,2,dll_id)To unload all DLLs loaded by $ZF(-4,1), use the following syntax:$ZF(-4,2)Establishing Index ValuesTo index a DLL in the system DLL index table, use the following syntax:$ZF(-4,5,dll_index,dll_name)To index a DLL in the process DLL index table, use the following syntax:$ZF(-4,7,dll_index,dll_name)To look up and execute a function indexed by $ZF(-4,5) or $ZF(-4,7), use $ZF(-6).540 Caché ObjectScript Reference