GetProcessMemoryInfo API取得进程所用的内存

https://msdn.microsoft.com/en-us/library/windows/desktop/ms683219(v=vs.85).aspx

例子：

https://msdn.microsoft.com/en-us/library/windows/desktop/ms682050(v=vs.85).aspx

http://blog.csdn.net/calculatorw/article/details/8192305

http://blog.csdn.net/caimouse/article/details/1947575

 

还有 GetProcessWorkingSetSize 

http://blog.csdn.net/calculatorw/article/details/8192191