操作系统实验——获取当前系统运行进程的信息

#include "windows.h" #include "tlhelp32.h" #include "iostream.h" void main(int argc, char* argv[]) { HANDLE hSnapshot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0); PROCESSENTRY32 pe; ZeroMemory(&pe,sizeof(pe)); pe.dwSize=sizeof(pe); BOOL bMore=Process32First(hSnapshot,&pe); while (bMore) { HANDLE hProcess=OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,pe.th32ProcessID); FILETIME CreationTime; FILETIME ExitTime; FILETIME KernelTime; FILETIME UserTime; GetProcessTimes(hProcess,&CreationTime,&ExitTime,&KernelTime,&UserTime); SYSTEMTIME ProCreationTime,ftKernelTime,ftUserTime,LocalTime; FileTimeToSystemTime(&CreationTime,&ProCreationTime);//转换为系统时间 FileTimeToSystemTime(&KernelTime,&ftKernelTime);//转换为系统时间 FileTimeToSystemTime(&UserTime,&ftUserTime);//转换为系统时间 GetSystemTime(&LocalTime);//获取系统时间 int time1,time2; time1=ftKernelTime.wHour*3600000+ftKernelTime.wMinute*60000+ftKernelTime.wSecond*1000+ftKernelTime.wMilliseconds;//计算核心态时间 time2=ftUserTime.wHour*3600000+ftUserTime.wMinute*60000+ftUserTime.wSecond*1000+ftUserTime.wMilliseconds;//计算用户态时间 if (hProcess!=NULL) { cout<<"process ID:"<<pe.th32ProcessID<<".exe file:"<<pe.szExeFile<<" "<<endl <<"启动时间:"<<(ProCreationTime.wHour+8)%24/*将格林尼治时间转换为北京时间*/<<":"<<ProCreationTime.wMinute<<":"<<ProCreationTime.wSecond<<":"<<ProCreationTime.wMilliseconds<<endl <<"核心态时间:"<<time1<<" milliseconds;"<<endl <<"用户态时间:"<<time2<<" milliseconds"<<endl; cout<<endl; CloseHandle(hProcess); } bMore=Process32Next(hSnapshot,&pe); } system("pause"); }