I noted in the help file there is no info on the topic

Customize the text overlay

Is there any info on this I want to be able turn the text ovrlay on and off Thanks in advance. Any done this if so I would appreciated any pointers.

With the API as is stands, there actually isn't a way to turn off the text overlay (odd, I know). The text overlay API still needs a bit of work and so we may delay documenting that part of the API until we've got it all sorted out properly, so as to discourage people from using it. You could, of course, try to hack the framework code yourself, but I would avoid that unless you don't mind doing a resynch of the code later.

Norman

//disable all overlays

foreach (var t in ClearCanvas.ImageViewer.Tools.Standard.OverlayToolBase.EnumerateTools(ImageViewer))

 t.Checked = false;