How do i find if a shape "xyz" is on Selected slide with vba

[Chuck [Sbc\)]

I am using a macro which scans all of the slides in a presentation to make
changes to a given shape (Named). I would like to know if the selected
slide contains a shape (textbox) with the name of "xyz" If it does, I want
to skip that slide.

 

[Chuck [Sbc\)]

Thanks - Worked just right,