C++ Qt 通过代码关闭正在运行的窗口
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Qt close a running window through code
提问by tyty5949
I have a program that opens another window and i want the old window to close. Is there some function or something that would close the window through the code but keep the other window running?
我有一个程序可以打开另一个窗口，我希望旧窗口关闭。是否有一些功能或东西可以通过代码关闭窗口但保持另一个窗口运行？
回答by nandan
回答by tyty5949
void Dialog::on_Close_clicked() // Condition for Main thread program stopping
Running Thread->closethread = true;
this->close();
void Dialog::on_Stop_clicked() // Condition For Stop Button for your particular task
{
this->close();
}
回答by JP_
MyWidget *newform = new MyWidget;
newform->show();
this->hide();
回答by Jis
Use signal and slot mechanism.
使用信号槽机制。
Whenever you want to close that window or screen emit a signal and connect this signal to the close slot of that window. This should work fine.
每当您想关闭该窗口或屏幕时，都会发出信号并将此信号连接到该窗口的关闭插槽。这应该可以正常工作。
