C++ 实现 查找进程, 杀死进程, 启动进程, 进程重启

头文件: 

#include <Windows.h>
#include <tlhelp32.h>
#include <tchar.h>
#include <ShellAPI.h>

 

查找进程: 就是调用windowApi遍历所有启动进程,  实现如下

bool FindProcess(std::string strProcessName, DWORD& nPid)
{

	TCHAR tszProcess[64] = { 0 };
	lstrcpy(tszProcess, _T(strProcessName.c_str()));
	//查找进程
	STARTUPINFO st;
	PROCESS_INFORMATION pi;
	PROCESSENTRY32 ps;
	HANDLE hSnapshot;
	memset(&st, 0, sizeof(STARTUPINFO));
	st.cb = sizeof(STARTUPINFO);
	memset(&ps, 0, sizeof(PROCESSENTRY32));
	ps.dwSize = sizeof(PROCESSENTRY32);
	memset(&pi, 0, sizeof(PROCESS_INFORMATION));
	// 遍历进程  
	hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
	if (hSnapshot == INVALID_HANDLE_VALUE)
		return false;
	if (!Process32First(hSnapshot, &ps))
		return false;
	do {
		if (lstrcmp(ps.szExeFile, tszProcess) == 0)
		{
			//找到制定的程序
			nPid = ps.th32ProcessID;
			CloseHandle(hSnapshot);
			printf("找到进程: %s\n", tszProcess);
			return true;
			//getchar();
			//return dwPid;
		}
	} while (Process32Next(hSnapshot, &ps));
	CloseHandle(hSnapshot);
	return false;
}

　　杀死进程: 就是通过遍历所有的启动的进程, 然后查找进程ID, 调用winapi将其杀死, 代码实现如下

bool KillProcess(DWORD dwPid)
{
	printf("Kill进程Pid = %d\n", dwPid); getchar();
	//关闭进程
	HANDLE killHandle = OpenProcess(PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION |   // Required by Alpha
		PROCESS_CREATE_THREAD |   // For CreateRemoteThread
		PROCESS_VM_OPERATION |   // For VirtualAllocEx/VirtualFreeEx
		PROCESS_VM_WRITE,             // For WriteProcessMemory);
		FALSE, dwPid);
	if (killHandle == NULL)
		return false;
	TerminateProcess(killHandle, 0);
	return true;
}

　　启动进程: 就是给出进程名绝对路径, 然后调用winapi启动

bool StartPrcess(std::string strProcessName)
{
	TCHAR tszProcess[64] = { 0 };
	lstrcpy(tszProcess, _T(strProcessName.c_str()));
	//启动程序
	SHELLEXECUTEINFO shellInfo;
	memset(&shellInfo, 0, sizeof(SHELLEXECUTEINFO));
	shellInfo.cbSize = sizeof(SHELLEXECUTEINFO);
	shellInfo.fMask = NULL;
	shellInfo.hwnd = NULL;
	shellInfo.lpVerb = NULL;
	shellInfo.lpFile = tszProcess;						// 执行的程序名(绝对路径)
	shellInfo.lpParameters = NULL;
	shellInfo.lpDirectory = NULL;
	shellInfo.nShow = SW_MINIMIZE;						//SW_SHOWNORMAL 全屏显示这个程序
	shellInfo.hInstApp = NULL;
	printf("程序自动重启中.... \n");
	ShellExecuteEx(&shellInfo);
	
	return true;
}

　　

程序重启流程: 1: 先查找需要重启的程序进程Id

　　　　　　  2: 启动需要重启的程序

　　　　　　  3: 杀死第一步的进程id

代码上面已实现