qt----实现模拟键盘

https://blog.csdn.net/ken2232/article/details/129803417

https://blog.csdn.net/judgejames/article/details/93191524?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-1-93191524-blog-79698271.235%5Ev38%5Epc_relevant_sort&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-1-93191524-blog-79698271.235%5Ev38%5Epc_relevant_sort&utm_relevant_index=1

https://learn.microsoft.com/zh-cn/windows/win32/inputdev/virtual-key-codes?redirectedfrom=MSDN

一、方法一：模拟按键—Ctrl+Q

https://blog.csdn.net/weixin_43246170/article/details/129146724

使用 Windows API 函数来模拟键盘按键操作

   ::SetForegroundWindow((HWND)page1->m_window->winId()); //设置焦点；有多个页面(QStackWidget，无法聚焦)
   
    keybd_event(VK_CONTROL,0,0,0);
    keybd_event('Q',0,0,0);
    Sleep(100);
    keybd_event(VK_CONTROL,0,KEYEVENTF_KEYUP,0);
    keybd_event('Q',0,KEYEVENTF_KEYUP,0);
    
    save_image("10003","1");

二、方法二：QkeyEvent

/模拟按下键盘I键
QWidget *receiver = QApplication::focusWidget();
QKeyEvent keyPress(QEvent::KeyPress, Qt::Key_I, Qt::NoModifier);
QKeyEvent keyRelease(QEvent::KeyRelease, Qt::Key_I, Qt::NoModifier);
QApplication::sendEvent(receiver, &keyPress);
QApplication::sendEvent(receiver, &keyRelease);

QKeyEvent构造函数：
第一个参数：QEvent事件（查阅官方文档）
第二个参数：键盘按键（查阅官方文档）
第三个参数：组合键

Constant Description
Qt::NoModifier 没有组合键被按下
Qt::ShiftModifier Shift键被按下
Qt::ControlModifier Control键被按下
Qt::AltModifier Alt键被按下
Qt::MetaModifier Meta键被按下（Fn键）
Qt::KeypadModifier 按下键盘按钮