#include <bits/stdc++.h>
#include <windows.h>
#define Key(VK_NONEMA) ((GetAsyncKeyState(VK_NONEMA) & 0x8000) ? 1 : 0)

using namespace std;
int main() {
    HWND hwnd;
    HWND h = GetForegroundWindow();
    ShowWindow(h, false);
    while (1) {
        if (Key(VK_UP) && Key(VK_DOWN)) {
            hwnd = FindWindow(NULL, "屏幕广播");
            while (1) {
                if (Key(VK_LEFT) && Key(VK_RIGHT)) {
                    ShowWindow(hwnd, true);
                    break;
                };
                
                Sleep(3);
                ShowWindow(hwnd, false);
            }
        }
        if (Key(VK_F1) && Key(VK_F2)) {
            return 0;
        }
        Sleep(100);
    }
}