未将对像摘引设置到对像的实例

未将对像引用设置到对像的实例
Dim   jb   As   Integer
                Dim   pid   As   Integer
                Dim   hProcess   As   Integer
                Dim   bufferr(10)   As   Byte
                Dim   readnumber   As   Integer
                jb   =   FindWindow( "Sword3   Class ",   Nothing)
                GetWindowThreadProcessId(jb,   pid)
                hProcess   =   OpenProcess(PROCESS_ALL_ACCESS,   0,   pid)
                ReadProcessMemory(hProcess,   &HC0890C0,   bufferr,   bufferr.Length,   readnumber)
                TextBox1.Text   =   bufferr.ToString　//错在这行“未将对像引用设置到对像的实例”是什么意思？

[解决办法]
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