Right, the tabstop property is missing from this control. However, even when enabling tabstop, it doesn't seem to accept cursor keys to change the value...

I don't know if this is the case, but I believe that problem may sometimes occur if it is not a standard control. Maybe change the control type?

It's a standard spin control, it's just not bound to an edit box like most other spinners in OpenMPT. It doesn't really make sense to change it to a different kind of control, but it could possibly be attached to an edit box.

That should be fine.

Is there any progress on improving keyboard access to this control? I see that a spin control was added so it is now in the tab order, but the value still cannot be changed using the keyboard. I'm asking now because previously I was at least able to click the scroll up/down arrows using the mouse functionality of my screen reader to change the value, but while I'm not sure in what version, some recent change has made it impossible for me to find that area using said mouse functionality.

The spin control has not been modified and I still don't know why your screen reader won't find the spin button.

Sorry, I should have said that it seems that the tabstop property was added since I can now move focus to the control using Tab/Shift Tab keyboard navigation, but it's value still cannot be modified using the keyboard. In other words, my screen reader does see the control now if I am just cycling using Tab or Shift+Tab. I can no longer find the scroll arrows for the control just using mouse navigation functionality of my screen reader, but that is a separate issue. I only mention this because it was the only way I was able to modify it's value in the past. If I could modify it's value using the keyboard as I can with other spin controls in OpenMPT, then not being able to find it using mouse functionality would be irrelevant.

I'll see if I can replace the gain control now that we have decimal input fields with input validation anyway.

Can you check if this version works better for you? http://sagagames.de/stuff/mptrack.exe

Well, it works better in that I can now read the value, but unless I'm missing something, it is still not possible to change the value by either typing it in or with the arrow keys.

I'll see how I can get cursor keys to work. The control remains locked for editing since it only accepts a very small range of values.

I made some modifications but I don't think they work; can you redownload and check? If that does indeed not work for you, there's one way left to fix it which would require some things to be changed around.

Seems about the same as far as I can tell. Thanks for the effort.

Ok, last resort then. Please redownload.

Yep that works with the up/down arrow keys. Thanks.