how to detect an already open form

[jkw119]

I have probably a relatively simple question... (at least one would think)

IN my menu, there is an item that opens a form. I would like to put some code so that, if the user clicks it twice, instead of opening two forms, the already open form is just selected and brought to the front of everything. Does anyone have any suggestions? This is the menu code

Dim SegmentInfoForm As New frmSegmentInfo()
        SegmentInfoForm.Show()
        System.Windows.Forms.Application.DoEvents()

Thanks,

jkw119