How to change System.Windows.Forms.ToolStripButton highlight/background color when checked?

Question

I have a ToolStripButton that is used as a radio button. When it is checked, a blue outline surrounds the button, but there is no background color. It is not clear enough for the user that the button is checked, so I would like to change the background color to make the check state more visible.

How do I go about changing the highlight color when the Checked property is set to true?

Here is a code snippet:

this.hideInactiveVehiclesToolstripButton.CheckOnClick = true; this.hideInactiveVehiclesToolstripButton.ForeColor = System.Drawing.Color.Blue; this.hideInactiveVehiclesToolstripButton.AutoSize = false; this.hideInactiveVehiclesToolstripButton.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image; this.hideInactiveVehiclesToolstripButton.Image = global::ClientUI.Properties.Resources.toggleInactive; this.hideInactiveVehiclesToolstripButton.ImageTransparentColor = System.Drawing.Color.Black; this.hideInactiveVehiclesToolstripButton.Name = "hideInactiveVehiclesToolstripButton"; this.hideInactiveVehiclesToolstripButton.Size = new System.Drawing.Size(48, 48); this.hideInactiveVehiclesToolstripButton.Text = "Hide Inactive Vehicles"; this.hideInactiveVehiclesToolstripButton.Click +=new System.EventHandler(this.hideInactiveVehiclesToolstripButton_Click); 

Answer 1

You can provide your own tool strip renderer to draw the button's background the way you want them. This example code gives the checked button a very visible black background:

public partial class Form1 : Form {     public Form1() {         InitializeComponent();         toolStrip1.Renderer = new MyRenderer();     }     private class MyRenderer : ToolStripProfessionalRenderer {         protected override void OnRenderButtonBackground(ToolStripItemRenderEventArgs e) {             var btn = e.Item as ToolStripButton;             if (btn != null && btn.CheckOnClick && btn.Checked) {                 Rectangle bounds = new Rectangle(Point.Empty, e.Item.Size);                 e.Graphics.FillRectangle(Brushes.Black, bounds);             }             else base.OnRenderButtonBackground(e);         }     } }