Qt 4:移动没有标题栏的窗口 [英] Qt 4: Move window without title bar

问题描述

我有一个标记为Qt::Popup的窗口(没有标题栏和关闭等按钮)，并且想要通过拖动\单击非标题栏区域来移动....

I have a Qt::Popup flagged window (which does not have a title bar and close etc buttons) and would like to move by dragging\clicking on the non-title bar area....

在Win32上，解决方案可以是 WM_NCLBUTTONDOWN ，但我的要求是跨平台.

On Win32, the solution could be WM_NCLBUTTONDOWN but my requirement is crossplatform.

推荐答案

尝试以下操作以手动移动窗口:

Try this to move the window manually:

void PopupWindow::mousePressEvent(QMouseEvent *event){
    mpos = event->pos();
}

void PopupWindow::mouseMoveEvent(QMouseEvent *event){
    if (event->buttons() & Qt::LeftButton) {
        QPoint diff = event->pos() - mpos;
        QPoint newpos = this->pos() + diff;

        this->move(newpos);
    }
}

然后在某处声明QPoint mpos.

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