In many cases my TreeNodes have additional text associated with them.
I want to display this in a tooltip when the mouse is over the text part of the node only.

I have used MouseEnterElement() to [almost] determine whether I am over the text rather than the icon by checking the width of the UIElement.
(if the width is 16 then it must be the icon)

However I have 2 problems.

1. There is a 1 pixel area above/below each icon that is not caught by this test. so if I move between icons the text briefly flashes.
    Is there a better way to determine that I am specifically over the Text element?

2. The automatic tooltips that you display when the text is not fully visible only display when the mouse is over the text - not the icon.
    Since I am displaying my own text in that situation I want to display the automatic text when the mouse is over the icon.
    (Either by changing a property to automatically display it when over the icon instead/in adition to over the text, or by detecting that the text is not fully displayed [while I am over the icon] and displaying the full text in my own tooltip.)

Thanks ... Mike