Borders for the QDockWidget 4.8

[N.Sumi]

Hello all,

Can someone suggest me, how to set the " Real borders " for the QDockwidget. Usually Dock comes with no border and only with tittle bar. I want to set the "real border" with color, for the Dock I made some search on google , it does not help me.
I am using Qt 4.8.5 on Win10.

check the Image

thanks and regards,
Sumi.

[Nouriemm]

@N.Sumi
Try to google Customizing QDockWidget or
check this link:
http://doc.qt.io/qt-4.8/stylesheet-examples.html#customizing-qdockwidget

cheers

[N.Sumi]

Hi @Nouriemm ,

Thank you.
I tested those Style Sheets.They gave me border inside the Dock. But I am looking for Real Borders for the Dock.

thanks,
Sumi.

[SGaist]

Hi,

The windows decoration themselves are not handle by Qt but by the current Window Manager you are using. Which is it ?

[Chris Kawa]

@N.Sumi said:

Usually Dock comes with no border and only with tittle bar.

When dock is detached it is displayed as Tool window (has Qt::Tool window flag). Whether it has a visible border or not depends on the window manager. In Windows 10 tool windows have no visible border except for a shadow you can grab to resize. That's not the case in previous versions of Windows though, which provided a thinner border for tool windows.

I want to set the "real border"

If by "real border" you mean a border used for normal windows (not tool windows), which in Windows 10 is a thin colored line, then you'll have to change windows flags of the dock manually when it is detached from main window. Below is a proof-of-concept quality example of a QDockWidget that does that:

class MyDockWidget : public QDockWidget
{
public:
    MyDockWidget(const QString& title, QWidget* parent = nullptr)
        : QDockWidget(title, parent), detached(false)
    {
        connect(this, &MyDockWidget::topLevelChanged, [&](bool topLevel)
        {
            detached = topLevel; //can't change flags while window is still dragged so just mark as detached
        });
    }

    bool event(QEvent* evt) override
    {
        if(evt->type() == QEvent::WindowActivate && detached)
        {
            detached = false;
            setWindowFlags(Qt::Window); //adjust flags to add whatever you need e.g. Qt::WindowCloseButtonHint
            show(); //changing flags hides the window so show it again
        }
        return QDockWidget::event(evt);
    }

private:
    bool detached;
};

[N.Sumi]

@ Chris Kawa

Yes, It solved the issue . Thanks