下面几句代码是什么意思？解决办法

下面几句代码是什么意思？
Private   Declare   Sub   MemCopy   Lib   "kernel32 "   _
Alias   "RtlMoveMemory "   (   _
        ByVal   Destination   As   Long,   _
        ByVal   Source   As   Long,   _
        ByVal   Length   As   Long   _
)

MemCopy   VarPtr(VTableAddress),   ObjPtr(Me),   4
MemCopy   VTableAddress   +   FON   *   4   +   28,   VarPtr(CodeAddress),   4

[解决办法]
声明API函数，对内存进行操作
[解决办法]
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