Win32 API 多线程编程——一个简单实例(含消息参数传递)

Win32 API进行程序设计具有很多优点：应用程序执行代码小，运行效率高，但是他要求程序员编写的代码较多，且需要管理所有系统提供给程序的资源，要求程序员对Windows系统内核有一定的了解，会占用程序员很多时间对系统资源进行管理，因而程序员的工作效率降低。

简单实例

 1 #include <iostream>
 2 #include <windows.h>
 3 using namespace std;
 4 
 5 DWORD WINAPI ThreadProc1(LPVOID lpParameter)
 6 {
 7 
 8     for (int i = 0; i < 10; i++)
 9     {
10         cout << "我是子线程1" << "  " << i << endl;
11     }
12     return 0;
13 }
14 
15 DWORD WINAPI ThreadProc2(LPVOID lpParameter)
16 {
17     cout << "我是子线程2" << endl;
18     return 0;
19 }
20 
21 void main()
22 {
23     HANDLE hThread1,hThread2;
24     hThread1 = CreateThread(NULL, NULL, ThreadProc1, NULL, NULL, NULL);
25     hThread2 = CreateThread(NULL, NULL, ThreadProc2, NULL, NULL, NULL);
26     WaitForSingleObject(hThread1, INFINITE);　　//同步
27     WaitForSingleObject(hThread2, INFINITE);
28     cout << "我是主线程" << endl;
29     while (1);
30 }

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含参数传递的实例

 1 #include <iostream>
 2 #include <windows.h>
 3 using namespace std;
 4 class DATA
 5 {
 6 public:
 7     int a=0;
 8     int b=0;
 9     int c=0;
10 public:
11     DATA()
12     {
13         a = 1; b = 2; c = 3;
14     }
15     DATA(int aa, int bb, int cc)
16     {
17         a = aa;
18         b = bb;
19         c = cc;
20     }
21 };
22 
23 DWORD WINAPI ThreadProc1(LPVOID lpParameter)
24 {
25     DATA* d = (DATA*)lpParameter;
26 
27     for (int i = 0; i < 10; i++)
28     {
29         cout << "我是子线程1" << "  " << i << endl;
30         cout << d->a << endl;
31     }
32     return 0;
33 }
34 
35 DWORD WINAPI ThreadProc2(LPVOID lpParameter)
36 {
37     cout << "我是子线程2" << endl;
38     return 0;
39 }
40 
41 void main()
42 {
43     HANDLE hThread1, hThread2;
44     DATA *d = new DATA(10,20,30);
45     hThread1 = CreateThread(NULL, NULL, ThreadProc1, d, NULL, NULL);
46     hThread2 = CreateThread(NULL, NULL, ThreadProc2, NULL, NULL, NULL);
47     WaitForSingleObject(hThread1, INFINITE);
48     WaitForSingleObject(hThread2, INFINITE);
49     cout << "我是主线程" << endl;
50     while (1);
51 }

View Code

LPVOID是个传递参数的玩意，无实际类型，大致就是这么用。