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

#include <iostream>
#include <windows.h>
using namespace std;

DWORD WINAPI ThreadProc1(LPVOID lpParameter)
{

    for (int i = 0; i < 10; i++)
    {
        cout << "我是子线程1" << "  " << i << endl;
    }
    return 0;
}

DWORD WINAPI ThreadProc2(LPVOID lpParameter)
{
    cout << "我是子线程2" << endl;
    return 0;
}

void main()
{
    HANDLE hThread1,hThread2;
    hThread1 = CreateThread(NULL, NULL, ThreadProc1, NULL, NULL, NULL);
    hThread2 = CreateThread(NULL, NULL, ThreadProc2, NULL, NULL, NULL);
    WaitForSingleObject(hThread1, INFINITE);　　//同步
    WaitForSingleObject(hThread2, INFINITE);
    cout << "我是主线程" << endl;
    while (1);
}

 含参数传递的实例

#include <iostream>
#include <windows.h>
using namespace std;
class DATA
{
public:
    int a=0;
    int b=0;
    int c=0;
public:
    DATA()
    {
        a = 1; b = 2; c = 3;
    }
    DATA(int aa, int bb, int cc)
    {
        a = aa;
        b = bb;
        c = cc;
    }
};

DWORD WINAPI ThreadProc1(LPVOID lpParameter)
{
    DATA* d = (DATA*)lpParameter;

    for (int i = 0; i < 10; i++)
    {
        cout << "我是子线程1" << "  " << i << endl;
        cout << d->a << endl;
    }
    return 0;
}

DWORD WINAPI ThreadProc2(LPVOID lpParameter)
{
    cout << "我是子线程2" << endl;
    return 0;
}

void main()
{
    HANDLE hThread1, hThread2;
    DATA *d = new DATA(10,20,30);
    hThread1 = CreateThread(NULL, NULL, ThreadProc1, d, NULL, NULL);
    hThread2 = CreateThread(NULL, NULL, ThreadProc2, NULL, NULL, NULL);
    WaitForSingleObject(hThread1, INFINITE);
    WaitForSingleObject(hThread2, INFINITE);
    cout << "我是主线程" << endl;
    while (1);
}

LPVOID是个传递参数的玩意，无实际类型 ，大致就是这么用。