Is it possible to reverse the vertical scroll of the touchpad on my Logitech Wireless Touch Keyboard (K400r) in the Logitech Setpoint program?
Short answer: No, not in SetPoint.
In a relevant post in the Logitech forums from 2013 August 8, a Logitech support technician states
This is not an option in Logitech Setpoint for Windows either.
This was my experience, today. Based on another forum post from a different Logitech support tech, I installed SetPoint in an attempt to accomplish the same goal (reverse scroll direction on a Logitech
K400 wireless keyboard/touchpad combo) and fiddled with it for a couple of hours.
Long answer: Yes, if you are willing to do some registry surfing.
The technician goes on to cite a registry edit "for the sake of information". Specifically:
Registry Path: HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Enum > HID > VID_046D&PID_C52B > Device Parameters (All) For Vertical Scrolling: All Device Parameters Entry Name: FlipFlopWheel Control Value: 0 Reversed Value: 1 For Horizontal Scrolling: All Device Parameters Entry Name: FlipFlopHScroll Control Value: 0 Reversed Value: 1
Then, the tech discourages the reader from manipulating the registry. Reasonable advice, considering that the suggested edit is not straight-forward.
I am using the
Logitech Unifying Software on
Windows 10 and have additional pointing devices attached through the unifier and otherwise. At
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\HID, I found 18 member keys with names that started with
VID_046D&PID_C52B but continued with additional specifiers. I.e. by studying the values in the subkeys, I eventually determined that my Logitech wireless trackball (a separate device) was represented as:
and the trackpad component of my
K400 was represented as:
Each of these keys has a complex-looking subkey that itself has two subkeys:
Properties (protected against access) and
Device Parameters, the one we are looking for. On my system, the particular
FlipFlopWheel that I wanted were found in:
If you can identify the correct path for your setup, right click on the two
FlipFlop data elements (to
regedit) and change them from
1. I noticed the desired effect after I restarted my machine.
To aide your search, try searching the
HID key for the string
logitech. The 'complex-sounding' subkey for the appropriate subkey of
HID will have some helpful info. Specifically, my
has the data element named
DeviceDesc with the value
@oem23.inf,%hidcordlessunifyingmouse%;Logitech HID-compliant Unifying Mouse
On my system, this was one of two such keys. (I have two mouse pointers managed by the
Logitech Unifying Software.)
In late 2020, Logitech Options allows this configuration (at least for the Logitech K400, which DOES answer the OPs question)