#include <QDialog>
#include <QVBoxLayout>
#include <QLabel>
#include <QPushButton>

class NewButtonDialog : public QDialog
{
    Q_OBJECT

public:
    NewButtonDialog(QWidget* parent = nullptr) : QDialog(parent)
    {
        QVBoxLayout* layout = new QVBoxLayout(this);
        QLabel* label = new QLabel("This is a new window opened by clicking the new button.", this);
        layout->addWidget(label);

        QPushButton* closeButton = new QPushButton("Close", this);
        layout->addWidget(closeButton);
        connect(closeButton, &QPushButton::clicked, this, &NewButtonDialog::accept);

        setLayout(layout);
        setWindowTitle("SL100 视频播放窗口");
        resize(480, 640); // 设置对话框的大小
    }
};