System.Diagnostics.SymbolStore.SymReader.GetGlobalVariables C# (CSharp) Method

        public ISymbolVariable[] GetGlobalVariables() 
        {
            COMException Exception;
            int hr;
            IntPtr[] VariablePointers;
            SymVariable[] Variables;
            int cVars;
            uint i;
            hr = SymReader_GetGlobalVariables(m_Reader, 0, out cVars, null);
            if (hr < 0)
            {
                Exception = new COMException("Call to GetGlobalVariables failed.", hr);
                throw Exception;
            }
            Variables = new SymVariable[cVars];
            VariablePointers = new IntPtr[cVars];

            hr = SymReader_GetGlobalVariables(m_Reader, cVars, out cVars, VariablePointers);
            if (hr < 0)
            {
                Exception = new COMException("Call to GetGlobalVariables failed.", hr);
                throw Exception;
            }        
            for (i = 0; i < cVars; i++)
            {
                Variables[i] = new SymVariable(VariablePointers[i]);
            }
            return Variables;
        }