1。如果一个同名filemapping对象存在,那么怎样知道他创建时候指定的大小?2。只要内存够用,能否改变filemapping的大小,我的意思是createfilemapping的时候指定的大小能否改变?3。能否指定无限或者说是自动大小的内存映射文件?比如创建时候句柄为INVALID_HANDLE,在内存中创建的时候能否指定他占全部的内存?怎样指定?如果我没有使用那么多的已经创建好的内存区,这样是否也会极度浪费内存?比如mapviewoffile的时候的映射了10个字节,而创建映射文件的时候大小为100M。
谢谢!

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