C++获取系统内存及分别率

1.获得系统内存情况
MEMORYSTATUS *mymem;
char s[6][20];

//获得系统内存情况
mymem = new MEMORYSTATUS;
GlobalMemoryStatus(mymem);

if(mymem->dwMemoryLoad>1024)
{
mymem->dwMemoryLoad/=1024;
_itoa(mymem->dwMemoryLoad,s[0],10);
m_usedmem=s[0];
m_usedmem+=" KB";
}
else
{
_itoa(mymem->dwMemoryLoad,s[0],10);
m_usedmem=s[0];
m_usedmem+=" Byte";
}

_itoa(mymem->dwTotalPhys/1024,s[1],10);
_itoa(mymem->dwTotalPageFile/1024,s[2],10);
_itoa(mymem->dwAvailPageFile/1024,s[3],10);
_itoa(mymem->dwTotalVirtual/1024,s[4],10);
_itoa(mymem->dwAvailVirtual/1024,s[5],10);
m_availvirtual.Format("%s KB",s[5]);
m_totalvirtual.Format("%s KB",s[4]);
m_totalpage.Format("%s KB",s[2]);
m_availpage.Format("%s KB",s[3]);
m_totalmem.Format("%s KB",s[1]);

UpdateData(FALSE);

delete mymem;

//获取操作系统信息
char windir[MAX_PATH];

//获得Windows目录
GetWindowsDirectory(windir,MAX_PATH);
m_Windir.SetWindowText(windir);

//获得Windows系统目录
GetSystemDirectory(windir,MAX_PATH);
m_Winsys.SetWindowText(windir);

//获得操作系统信息
OSVERSIONINFO osvi;
CString winver,os;

osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx (&osvi);

switch(osvi.dwPlatformId)
{
case 0:
os = "Windows 3.x";
break;
case 1:
os = "Windows 95/98/Me";
break;
case 2:
os = "Windows NT/2000";
break;
}

winver.Format("Version:%d.%d Builder:%d",osvi.dwMajorVersion,osvi.dwMinorVersion,osvi.dwBuildNumber);
m_Winver.SetWindowText(winver);
m_Winplt.SetWindowText(os);

//获取CPU信息
char s[20];
LPSYSTEM_INFO mysys;
mysys=new SYSTEM_INFO;
GetSystemInfo(mysys);
//_itoa(mysys->wProcessorArchitecture,s,10);
//  m_cpuid=s;
_itoa(mysys->dwNumberOfProcessors,s,10);
m_cpunum=s;
_itoa(mysys->dwProcessorType,s,10);
m_cputype=s;
switch (mysys->wProcessorLevel)
{
case 3:
m_cpulevel="Intel 80386";
break;
case 4:
m_cpulevel="Intel 80486";
break;
case 5:
m_cpulevel="Pentium";
break;
default:
m_cpulevel="未知的CPU";
}
_itoa(mysys->wProcessorRevision,s,10);
m_cpurevision=s;
delete mysys;
UpdateData(FALSE);

//获取屏幕分辨率信息
CString scrxy;
int x = GetSystemMetrics(SM_CXSCREEN);
int y = GetSystemMetrics(SM_CYSCREEN);

scrxy.Format("%d * %d",x,y);

m_Scr.SetWindowText(scrxy)