【内存】的获取个人小结

本文为个人使用后的一些总结，逐步完善中...

1、获得全局内存

对应函数：void GlobalMemoryStatus(LPMEMORYSTATUS lpBuffer); 【总内存2G以内使用】

API:

typedef struct _MEMORYSTATUS
{
	DWORD dwLength;			//本结构的长度;
	DWORD dwMemoryLoad;     //已用内存的百分比;
	SIZE_T dwTotalPhys;		//物理内存总量;
	SIZE_T dwAvailPhys;		//可用物理内存;
	SIZE_T dwTotalPageFile; //交换文件总的大小;
	SIZE_T dwAvailPageFile; //交换文件中空闲部分大小;
	SIZE_T dwTotalVirtual;  //用户可用的地址空间;
	SIZE_T dwAvailVirtual;  //当前空闲的地址空间;
} MEMORYSTATUS, *LPMEMORYSTATUS;

使用实例：

void CGetMemory_1Dlg::OnBnClickedButton1()
{
	MEMORYSTATUS lpBuffer;
	lpBuffer.dwLength = sizeof(MEMORYSTATUS);
	GlobalMemoryStatus(&lpBuffer);
}

【总内存2G~4G的建议使用扩展函数】GlobalMemoryStatusEx(LPMEMORYSTATUSEX lpBuffer)

API:

typedef struct _MEMORYSTATUSEX {
    DWORD dwLength;
    DWORD dwMemoryLoad;
    DWORDLONG ullTotalPhys;
    DWORDLONG ullAvailPhys;
    DWORDLONG ullTotalPageFile;
    DWORDLONG ullAvailPageFile;
    DWORDLONG ullTotalVirtual;
    DWORDLONG ullAvailVirtual;
    DWORDLONG ullAvailExtendedVirtual;
} MEMORYSTATUSEX, *LPMEMORYSTATUSEX;

使用实例：

void CGetMemory_1Dlg::OnBnClickedButton1()
{
	MEMORYSTATUSEX lpBuffer;
	lpBuffer.dwLength = sizeof(MEMORYSTATUSEX);
	GlobalMemoryStatusEx(&lpBuffer);
}

2、获得取得某一进程内存

call:

BOOL GetProcessMemoryInfo(

HANDLE Process,

PPROCESS_MEMORY_COUNTERS ppsmemCounters,

DWORD cb

);

API:

typedef struct _PROCESS_MEMORY_COUNTERS
{
	DWORD cb;
	DWORD PageFaultCount;
	SIZE_T PeakWorkingSetSize;
	SIZE_T WorkingSetSize;
	SIZE_T QuotaPeakPagedPoolUsage;
	SIZE_T QuotaPagedPoolUsage;
	SIZE_T QuotaPeakNonPagedPoolUsage;
	SIZE_T QuotaNonPagedPoolUsage;
	SIZE_T PagefileUsage;
	SIZE_T PeakPagefileUsage;
} PROCESS_MEMORY_COUNTERS, *PPROCESS_MEMORY_COUNTERS;