Hello,

I have made a couple of mods to the viewer control that I thougt I would share.  I have also fixed a bug I was having.

Mods...

Line 218 - I removed the -60 so that the slider sits below the image, I didn't want the slider over the image.

ElementSliderGrid.SetValue(Canvas.TopProperty, RenderSize.Height );   // -60

In the method private void ElementContent_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

I added the line Cursor = Cursors.Hand;

In the method private void ElementContent_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)

I added the line Cursor = Cursors.Arrow;

I may add an ElementContent_MouseOver method and just put the change in there.

Bug

When I placed the control into the designer I kept getting NullReferenceExceptions thrown as soon as I displayed the designer. It was complaining about the event handler setters in the code.  I wrapped the setters like this

            if (!IsDesignTime())

            {

                ElementContent.MouseLeftButtonDown += new MouseButtonEventHandler(ElementContent_MouseLeftButtonDown);

                ElementContent.MouseLeftButtonUp += new MouseButtonEventHandler(ElementContent_MouseLeftButtonUp);

                ElementContent.MouseMove += new MouseEventHandler(ElementContent_MouseMove);

                ElementContent.SizeChanged += new SizeChangedEventHandler(ElementContent_SizeChanged);

                ElementSliderX.Value = Zoom;

                ElementSliderX.ValueChanged += new RoutedPropertyChangedEventHandler<double>(ElementSliderX_ValueChanged);

                ElementSliderGrid.MouseEnter += new MouseEventHandler(ElementSliderX_MouseEnter);

                ElementSliderGrid.MouseLeave += new MouseEventHandler(ElementSliderX_MouseLeave);

            }

         private bool IsDesignTime()

        {

            return DesignerProperties.GetIsInDesignMode(Application.Current.RootVisual);

        }

This stopped the error from occuring.

Thanks for some excellent controls.

Jim

Hi, I want to remove those eventhandlers so you can only use the slider. But I dont know how I have to use the source code.

When I add the source code files to my project I cant use them.

You don't include his code into your project.

After you have changed his code in it's own project and recompiled it to build a new library include the new library in your code and you will see your changes.

Jim