根据进程名判断该进程是否存在(C++)

直接调用方法就ok

代码如下:

bool g_ProcessRun = false;

//wchar_t 转 string;
void Wchar_tToString(string& szDst, wchar_t* wchar)
{
	wchar_t* wText = wchar;
	DWORD dwNum = WideCharToMultiByte(CP_OEMCP, NULL, wText, -1, NULL, 0, NULL, FALSE);
	char* psText;
	psText = new char[dwNum];
	WideCharToMultiByte(CP_OEMCP, NULL, wText, -1, psText, dwNum, NULL, FALSE);
	szDst = psText;
	delete[]psText;
}

//判断是否进程运行
//param1:进程名
bool isProcessRun(string process_name)
{
	HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
	if (INVALID_HANDLE_VALUE == hSnapshot) {
		return NULL;
	}
	PROCESSENTRY32 pe = {sizeof(pe) };
	for (BOOL ret = Process32First(hSnapshot, &pe); ret; ret = Process32Next(hSnapshot, &pe)) {
		wchar_t* process_str = pe.szExeFile;
		string current_process_name;
		Wchar_tToString(current_process_name, process_str);
		if (current_process_name == process_name) {
			g_ProcessRun = true;
			break;
		}
	}
	CloseHandle(hSnapshot);
	return g_ProcessRun;
}

 

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