C# Get the control at a certain position on a form

Question

This is the inverse question to C# Get a control's position on a form.

Given a Point location within a form, how can I find out which control is visible to the user at that position?

I'm currently using the HelpRequested form event to show a separate help form as shown in MSDN: MessageBox.Show Method.

In the MSDN example the events sender control is used to determine the help message, but the sender is always the form and not the control in my case.

I'd like to use the HelpEventArgs.MousePos to get the specific control within the form.

Answer 1

You can use the Control.GetChildAtPoint method on the form. You may have to do this recursively if you need to go several levels deep. Please see this answer as well.

Answer 2

You can use Control.GetChildAtPoint:

var controlAtPoint = theForm.GetChildAtPoint(thePosition);