Now, we will add the code to hook up the CustomScrollbar so that it will scroll our panel that we setup.

Until now, it has been an extremely tedious and difficult task.

Back in the days before.NET, it was a huge undertaking to get rid of the default scrollbars for listviews, list control, and any other control that has the default Windows scrollbar.

If you want to see just how difficult it is, check out my other article I wrote for Visual C 6.0 MFC, How to Skin CListCtrl including scrollbars and column headers.

Then, create another Panel, but this time create it inside the OuterPanel, and name it InnerPanel.

For some reason, we can not use the design editor to add a control to the innerPanel, because it messes up the DisplayRectangle property and does not return the correct value.

So what we have to do is add the control to the innerPanel using code, and then everything will work fine.

Change Scrollbar Color Skin It Well

So, how do we skin it Well, there is actually no way to skin a Windows scrollbar, as far as I know.

Basically, we have to mimic exactly what the Windows VScroll control does, but add the ability to be able to use graphics for the arrows, channel, and thumb tracking controls.

Then, later on, we will write some more code that will enable us to hide the panel scrollbar, as well as make our custom user control scrollbar, control the panels scrolling.

The thumb control for a standard Windows scrollbar always sizes appropriately depending on the Minimum Maximum and LargeChange properties.

This means that we have to give our thumb control the ability to change its size dynamically.

Yes, this is not fun, because in order to do this using graphics, we have to split up our thumb control graphic into five different graphics, two of which will need to be spanned accordingly to how big our thumb control is supposed to be.

Incidentally, it is also very easy to add the ability to have mouseover images for the arrows and thumb controls, but I wont be covering that.

I will leave that as an exercise for all you developers out there:).

We just have to determine how we want our scrollbar to function.

I dont like re-inventing the wheel or changing the things that I am used to.

So, I am going to make our custom scrollbar work exactly like the VScroll or Windows scrollbar control, so that if I want to use my custom scrollbar in place of an ugly Windows scrollbar, I can just simply swap them out and it will work.

However, once you are done making this work, you should never have to code another one ever again, and if you do, at least you will have a code base to start from with what we have developed here.

Some are protected, and will later be exposed, and some are private for internal use only.

We will override the OnPaint of our user control to accomplish this task, as shown below: protected override void OnPaint(PaintEventArgs e).

Keep in mind, I have left certain things out that are not that important.

Now, we just need to the hide the default scrollbar on the panel, and hook up our custom scrollbar.

Now, lets right click on our toobox and click Choose Items.

Change Scrollbar Color .Dll And Add

CustomControls.dll and add our CustomScrollbar to the toolbox.

Change Scrollbar Color Windows 10