Simple program to quickly swap the mouse buttons (on Windows).
The change is only temporary - it is not retained when you log out.
It is useful if you normally use swapped mouse buttons and you share a desktop with someone who doesn't - for example an IT help desk.
It was originally inspired by answers on http://stackoverflow.com/questions/4806575/how-do-i-use-rundll32-to-SwapMouseButton, particularly https://stackoverflow.com/a/4806576 and https://stackoverflow.com/a/10509038.
I have successfully built and run the code on Windows 7, Windows 10, and Windows 11.
You might need to change the path in build.bat to find a
suitable csc.exe on your system.
Obvious changes would be to use a different version number, or to use
Framework64 instead of Framework.
At the moment, it attempts to use the latest .NET Framework 4.x. The build file includes a commented out example for the very old .NET Framework 3.5. See the .NET Support Policy for more.
This work is dual-licensed under Apache 2.0 and GPL 2.0 (or any later version). You can choose between one of them if you use this work.
SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
Alternative licensing arrangements are possible, contact us for details.
Very useful if you "right-click"* on the .exe and then "Pin to Taskbar".
Edit the properties (via "right-click") to change the icon: use a system
icon for a mouse - look in the default shell32.dll, or in
DDORes.dll, both found in %SystemRoot%\System32\.
If you want to set the name/tooltip for the Taskbar button, the easiest way is
not to pin the .exe itself. Instead, create a shortcut to it, rename the
shortcut to something more expressive (like "Swap mouse buttons"), set the icon
on the shortcut, then pin the shortcut to the Taskbar.
*"right-click" depends on which way you have your mouse set, which can become confusing. Also, "right-click" should really be "Alt-click", but people interpret that as "Press the Alt button and click". Left-handed mouse users presumably get used to this.