C++获取Windows7 32位系统中所有进程名（类似于任务管理器中的进程）

代码是网上查找资料，然后自己调试，修改之后可以运行。

系统：win7 32位，VS2008

-----------------------------------------------------------------------代码------------------------------------------------------------------------------------

 1 #include <iostream>  
 2 #include <string>  
 3 #include <map>  
 4 #include <windows.h>  
 5 #include <TlHelp32.h> 
 6 using namespace std;  
 7 
 8 bool traverseProcesses(map<string, int>& _nameID)   
 9 {  
10     PROCESSENTRY32 pe32;  
11     pe32.dwSize = sizeof(pe32); 
12 
13     HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);//获取进程快照  
14     if(hProcessSnap == INVALID_HANDLE_VALUE) {  
15         cout << "CreateToolhelp32Snapshot Error!" << endl;;  
16         return false;  
17     }  
18 
19     BOOL bResult =Process32First(hProcessSnap, &pe32);  
20 
21     int num(0);  
22 
23     while(bResult)   
24     {  
25         //string name = string(pe32.szExeFile);
26         char temp[300];
27         WideCharToMultiByte(CP_ACP, 0, pe32.szExeFile, -1, temp, sizeof(temp), NULL, NULL);
28         string name = string(temp);
29         int id = pe32.th32ProcessID;  
30 
31         cout << "[" << ++num << "] : " <<"Process Name:" 
32             << name << "  " << "ProcessID:" << id<< endl;  
33 
34         _nameID.insert(pair<string, int>(name, id)); //字典存储  
35         bResult = Process32Next(hProcessSnap,&pe32);  
36     }  
37 
38     CloseHandle(hProcessSnap);  
39 
40     return true;  
41 }  
42 
43 int main()  
44 {  
45     map<string, int> _nameID;  
46 
47     if (!traverseProcesses(_nameID)) {  
48         cout << "Start Process Error!" << endl;  
49     }  
50 
51     return 0;  
52 }

运行结果：