【windows + 窗口】 通过FindWindow操作窗口

概述

通过FindWindow可以找到对应的窗口句柄，然后通过ShowWindow可以最小化最大化窗口

样例

查找一个记事本应用，如果找到则循环对其执行最大化、最小化操作

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

static constexpr int OPE_INTERVAL_SEC = 20;;

int main()
{
    HWND hdl = FindWindow(L"Notepad", nullptr);
    if (hdl == 0) {
        cout << "Find window fail" << endl;
        return -1;
    }

    bool isMin = true;
    uint32_t loopTimes = 0;
    while (true) {
        
        int ret;
        if (isMin) {
            ret = ShowWindow(hdl, SW_MINIMIZE);
        } else {
            ret = ShowWindow(hdl, SW_MAXIMIZE);
        }
        cout << "start exec, isMin:" << isMin << " loopTimes: " << loopTimes << " ret: " << ret << endl;
        isMin = !isMin;
        loopTimes++;
        this_thread::sleep_for(chrono::seconds(OPE_INTERVAL_SEC));
    }

    std::cout << "Hello World!
";
}