I have desktop application with a text field where I have added help tag text.
I find that on Mac OS the help tags appear wherever they are needed, however on Windows OS they are not consistently showing.
I find this behavior is the same in Windows 7 and Windows 10, and Xojo 2014r3.1 and Xojo 2015r4.1.
In one window, the help tags seem more consistent, not showing up on only one textfield - however, in another window where the textfields are within a container, the help tags do not appear at all.
The problem seems only to occur on the Windows OS and works perfectly using the Mac OS.
Yeah, I got so fed up with the way tooltips worked on Windows that I went and created my own using a Canvas. I track its location in the MouseMove event of the control and make it visible when I want it to appear. The control’s MouseExit event hides the canvas. The advantages, other than showing it only when I want it, are I can make it any size I need, multi-line if I want it, and any color I want. Start a timer in the control’s MouseEnter event and you can even have the “tool tip” wait and see if the cursor leaves the control early.