Hello,
in my diagram i have some Nodes at the top, let's say like a Legend. 4 or 5 Nodes in different Color, so the user knows, what each Color means.

Now it would be great if the user moves the Mouse over such a Legend-Node, that every Node this Legend points to would be highlighted.

For this feature I'm looking for some Event like diagram.mouseover or mousemove or so. But it seems that there doesn't exist anything, which i can use.

I as well tried a little workaround, with using the diagramview.mousemove event and then passing the e.X and e.Y as PointF to diagram.GetItemAt. And if the id = Legend then highlight the Nodes the Legend points to.
At first this worked great, but if i call the diagramview.zoomin or zoomout the e.X and e.Y Values aren't correct anymore, so the GetItemAt gets me wrong Nodes.

I hope that there is something that i can use for my project.

Thank you
The ClientToDoc Function solved the problem