Context Menu not showing up in tabPage

Question

Hello everyone,

I have this scenario:

A windows forms application, which contains:

• a QTabControl (from Qios DevSuite) created in design view;
• a QTabPage created programmatically;
• a geckoWebBrowser inside the QTabPage, created programmatically as well.

The problem: I have 2 events in the QTabPage:

• QTabPage.MouseDown - executes perfectly
• QTabPage.NonClientAreaMouseDown - seems to not trigger at all. I don't understand why. How can an event not trigger at all? It does not enter the event handler.

And here is the code that makes the QTabPage, and those events:

    private void QtabCreateNewPage()
    {
        QTabPage page = new QTabPage();
        page.Text = "(New Tab)";
        page.NonClientAreaMouseDown += new QNonClientAreaMouseEventHandler(page_NonClientAreaMouseDown);//seems to not trigger properly.

        page.MouseDown += new MouseEventHandler(page_MouseDown);
        qTabControl.Controls.Add(page);
    }

    void page_NonClientAreaMouseDown(object sender, QNonClientAreaMouseEventArgs e)
    {
        if (e.Button == MouseButtons.Right)
        {
            menuTabPages.Show(CurrentActivePage, e.Location);
        }
    }

    void page_MouseDown(object sender, MouseEventArgs e)
    {
        if (e.Button == MouseButtons.Right)
            menuTabPages.Show(CurrentActivePage, e.Location);
    }

The intellisense caption for NonClientAreaMouseDown says :

This event gets raised when the user clicks on the NonClientArea and the specified area is known. Like on the Caption or the Sizing area.

I am clicking the NonClientArea, but nothinig happens. I hope you can help with some hints, I've spent all day trying to solve this.

Thank you for any idea in advance.

Best regards,

Andrei Marius Cristof