I'm a big fan of the style Inventor team uses for ribbon buttons (all those progressive tooltips with image/video and context help by F1 etc) and I'm doing my best in order UI of my AddIns follow this style.
Sometimes buttons of my AddIns are supposed to be grayed out.
In such case I substitute button description with corresponding comment, and I also want to clear the Image used for the ProgressiveToolTip.
The image is set with code like this:
<MyButtonDef>.ProgressiveToolTip.Image = PictureDispConverter.ToIPictureDisp(My.Resources.<ImageName>)
I believe it can be cleared with:
<MyButtonDef>.ProgressiveToolTip.Image = Nothing
... but for some reason it still shows the initial image.
What I'm missing?
