C# Trackbar custom colors

Question

this might be a very global question but here we go:

I was wondering how I could make a trackbar like Virtualbox. They have a trackbar that have custom colors at the bottom to show if you've assigned too much RAM to your virtual system.
Now my question is: How can I give my trackbar custom colors?
I have read something about e.graphics etc. and overriding other functions, but I can't seem to find any information about this ):.

If you know what I mean and have sources to good tutorials and/or examples that would be awesome! Because I really don't know where to look anymore :(.

I am programming in C#, WinForms.

You can use the TrackBarRenderer functionality, like [here](https://stackoverflow.com/questions/3484143/visual-styles-independent-drawing) and [here](https://msdn.microsoft.com/en-us/library/system.windows.forms.trackbarrenderer(v=vs.110).aspx) — rupweb, May 22 '18 at 10:14

score 2 · Accepted Answer · edited May 23 '17 at 10:28

2

As Hans mentioned the standard trackbar is pretty limiting. You can change the background color through TrackBar.BackColor property. Otherwise you will have to create a custom control and override the OnPaint method:

partial class MyTrackBar : System.Windows.Forms.TrackBar
{       
    protected override void  OnPaint(System.Windows.Forms.PaintEventArgs e)
    {
        e.Graphics.FillRectangle([Brush color], ClientRectangle);
    }
}

Third option is to use a trackbar already created. Like free CodeProject trackbar or commercial Devexpress one.

edited May 23 '17 at 10:28

Community

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answered Apr 12 '12 at 14:56

Raj Ranjhan

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Thanks, I might create a control myself then. Good exercise too I guess :). Thanks! – Yuki Kutsuya Apr 13 '12 at 07:10

C# Trackbar custom colors

1 Answers1