There is the gTrackBar.dll file inside the "gTrackBar\gTrackBar\bin\Release" folder, which you should add as a reference to both AdvancedHMI and AdvancedHMIControls in your project.
Then just download the attached file and add it as Existing Item to the PurchasedControls folder, close all forms and rebuild the project (the control appears to be working fine as it is).
- PLCAddressValue inputs the value from that PLC address to the gTrackBar
- Changing the gTrackBar value will write the new value back to the PLCAddressValue
If you either drag a slider to a certain value or enable JumptToMouse property and jump directly to any value or just use mouse clicks (functionality of the ChangeLarge property), the last gTrackBar position value will be written to the PLCAddressValue address. If instead you use the Up/Down buttons to change the gTrackBar value then don't click on them too fast.
EDIT: In this post, there is also post-v3.99a AHMI file attached. See also the post below for v3.99y file.