C#

private void CreateDevice(Control Target)<br />
    {<br />
        //Use the system default adapter<br />
        int iAdapter = Manager.Adapters.Default.Adapter;<br />
<br />
        //Set up the presentation parameters<br />
        presentparameters = new PresentParameters();<br />
        #if DEBUG<br />
        presentparameters.Windowed = true;<br />
        #else<br />
        presentparameters.Windowed = false;<br />
        presentparameters.BackBufferCount = 1;<br />
        presentparameters.BackBufferWidth = 800;<br />
        presentparameters.BackBufferHeight = 600;<br />
        presentparameters.BackBufferFormat = Manager.Adapters.Default.CurrentDisplayMode.Format;<br />
        Target.Cursor.Dispose();<br />
        #endif<br />
        presentparameters.SwapEffect = SwapEffect.Discard;<br />
        presentparameters.PresentationInterval = PresentInterval.Immediate;<br />
<br />
        //Creation flags;<br />
        CreateFlags flags;<br />
        //See if we can use hardware vertex processing<br />
        Caps caps = Manager.GetDeviceCaps(iAdapter, DeviceType.Hardware);<br />
        if (caps.DeviceCaps.SupportsHardwareTransformAndLight)<br />
        {<br />
            flags = CreateFlags.HardwareVertexProcessing;<br />
        }<br />
        else<br />
        {<br />
            flags = CreateFlags.SoftwareVertexProcessing;<br />
        }<br />
<br />
        //Check support once more<br />
        if (caps.DeviceCaps.SupportsPureDevice)<br />
        {<br />
            flags = flags | CreateFlags.PureDevice;<br />
        }<br />
<br />
        //Create the actual device<br />
        //ERROR HERE<br />
        device = new Device(iAdapter, DeviceType.Hardware, Target, flags, presentparameters);<br />
<br />
        //Hook up the device resizing event<br />
        device.DeviceResizing += new System.ComponentModel.CancelEventHandler(OnDeviceResizing);<br />
    }

<br />
Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on.<br />

<br />
private delegate void subscriptions_FeedsUpdatedCallback(object sender, FeedsUpdatedArgs e);<br />
<br />
void subscriptions_FeedsUpdated(object sender, FeedsUpdatedArgs e)<br />
{<br />
    if (this.InvokeRequired)<br />
    {<br />
        var d = new subscriptions_FeedsUpdatedCallback(subscriptions_FeedsUpdated);<br />
        this.BeginInvoke(d, new object[] { sender, e });<br />
    }<br />
    else<br />
    {<br />
        HideInfoItem(); // hide the menu entry which displays status information ('Updating...' / 'Connection error')<br />
<br />
        foreach (var menu in FeedMenus) // show submenus for each RSS feed<br />
            menu.Visible = true;<br />
<br />
        foreach (Subscription feed in subscriptions.Channels)<br />
        {<br />
            ToolStripMenuItem menuItem = (ToolStripMenuItem)(this.Items.Find(feed.Name, false))[0];<br />
            foreach (Rss.RssItem newitem in feed.NewItems)<br />
                menuItem.DropDownItems.Add(newitem.Title);<br />
        }<br />
    }<br />
}<br />

    // **************************************************************************************************<br />
    private void ShowForm(DataTable dtDagChauff)<br />
    {<br />
      if (FrmZTour == null )<br />
      {<br />
        FrmZTour = new FrmDgvZoomTour();<br />
        FrmZTour.SelectTour += new FrmDgvZoomTour.SelectTourHandler(DgvTourSelected);<br />
        FrmZTour.Show(this);<br />
      }<br />
<br />
      FrmZTour.FillDgv(dtDagChauff);<br />
    }