一个用vc编的查看内存使用情况的程序源码

void CMemStateDlg::OnButton1()
{
// TODO: Add your control notification handler code here
MEMORYSTATUS memStatus;
char buf[80];

memStatus.dwLength=sizeof(MEMORYSTATUS);

GlobalMemoryStatus(&memStatus);

DWORD tom=memStatus.dwTotalPhys;
DWORD mem=memStatus.dwAvailPhys;
DWORD res=memStatus.dwAvailVirtual;
tom /= (1024);
mem /= (1024);
res /= (1024);

int m_Total = (int)tom/1024;
int m_Used  = (int)(tom-mem)/1024;
m_CtrProgress.SetRange(0, m_Total);
m_CtrProgress.SetStep(1);
m_CtrProgress.SetPos(m_Used);

sprintf(buf,"%ld",tom);
GetDlgItem(IDC_TOTALMEM)->SetWindowText(buf);
sprintf(buf,"%ld",mem);
GetDlgItem(IDC_AVAILMEM)->SetWindowText(buf);
sprintf(buf,"%ld",res);
GetDlgItem(IDC_VIRTUALMEM)->SetWindowText(buf);
*(buf)='\0';
}