SharpKeys is a utility that manages a Registry key that allows Windows to remap one key to any other key. Included in the application is a list of common keyboard keys and a Type Key feature to automatically recognize most keyboard keys. It was originally developed in C# using .NET v2 but has been updated to support .NET 4.0 Client Profile
I finally merged the code change that changes the way keys are entered into the list, which includes looking for triple-byte keycodes and should enable the ability to remap Alt+Gr. What I don't know is if it works or not, so if you successfully or unsuccessfully remap the Alt+Gr key, please let people know in the Issues section - thanks!
This is something that I've thrown together to help people out with their keyboard mappings. What's a keyboard mapping? How many times a day do you accidentally hit cAPS lOCK BY MISTAKE AND END UP HAVING TO GO BAck and retype stuff? For me it was at least once an hour - in fact, I used to pop off the Caps Lock key so I wouldn't hit it anymore, but I found something better in Windows XP, as well as 2000, Server 2003, Vista, Windows 7, Windows 8, and Windows 10. There's a little used registry hack that allows you to remap keys across a keyboard. For me, this meant that I told my computer to treat Caps Lock as if it was a shift key, which it now does.
The more I started working with other keyboard, the more I wanted to have this ability to map other keys across my keyboard, but working with the Hex numbers and having too look up scan codes could be painful... hence SharpKeys.
SharpKeys is not responsible for any of the keyboard remapping functionality - it simply exposes a Registry key that controls how Windows remaps keys and has been available to us since Windows 2000. The list of keys that are included in the application are from most of the US-based keyboards that I've used over the years and is not guaranteed to be 100% complete for world keyboards.
Click the Releases button in the header above or go to https://github.com/randyrants/sharpkeys/releases directly
- Launch SharpKeys, by selecting it's icon from the Start menu. If there are any errors reported, please check the Troubleshooting section below
- Add a new key mapping or edit an existing one
- Click "Write to registry" and wait for a confirmation that the registry was successfully updated
- Close SharpKeys and either log out (and back in) or reboot to enforce the new mappings
- Map an entire key to any other key - e.g. you could remap Caps Lock to a Shift key
- Remap more than one key to one single key - e.g. you could remap every key on a keyboard to the letter Q
- Force you to look for the Left or Right ALT key in the list of available keys because Type Key cannot scan for ALT
- Allow you to swap two keys with each other - e.g. you can swap Left Windows with Left Control and vice versa
- Map multiple key presses to one key - e.g. it will not support an attempt to remap Ctrl+C to the F5 key
- Map mouse clicks to any key
- Support certain hardware keys that never make it to Windows - e.g. Logitech’s volume buttons or most Fn keys
- Support multiple mappings for different users - the Windows key being tweaked is for an entire machine
- Protect you from yourself - if you disable your DEL key and can’t login because Ctrl+Alt+Del doesn’t work now, you’ll have to reformat
Q: Can I remap a combination of keys to one key?
A: Sadly, no. SharpKeys only remaps whole keys rather than a modified key. For example, you can remap Ctrl or C but you can't remap Ctrl+C to another key.
Q: Can I remap a mouse click to a new key?
A: Sorry, but no. The remapping technology that Windows uses to remap your keys isn't aware of your mouse.
Q: Why can't I remap my Fn key on my [notebook or Apple] keyboard?
A: Some keys simply just never get to Windows. In the case of most Fn keys, they are interpretted by the hardware and never get passed onto the OS, no matter how they appear to work... if Windows doesn't see the key, there's no way for the key to be remapped by Windows.
Q: Type a Key shows 00_100 - can I remap this key?
A: 00_100 is a catch all code that Windows reports when a key is captured by hardware or some other driver so there's no way to successfully remap that key, especially since multiple keys can return the same 00_100 code.
Q: Type a Key shows Unknown Key - can I remap this key?
A: Odds are this is just a key that has never been seen by SharpKeys before so it doesn't know what to do with it. Open an issue on this site for the this project and someone from the Open Source community can look into adding it.
Q: Type a Key shows a code that is E0_nnnn - can I remap this key?
A: If a scancode has 6 numbers, then it is what is known as a triple byte scancode which is something that cannot be remapped by the Windows Registry. To remap a key like this, you'll need an active remapper like AutoHotKeys or the app that came with the keyboard (e.g. Logitech's Options) if available.
Q: Type a Key doesn't recognize the Alt key when I type it - how do I remap this key?
A: The Alt key scancode doesn't make it through the system, to get to the Type a Key window. Basically, when you type Alt, Windows sends it to the system menu and activate it, rather than sending the scancode to the window. You can still remap this key, but you'll see to select it from the list manually; you'll find it in the grouping of keys marked as "Special".
Q: What is the craziest remapping you've ever done? A: I think it's my active remapping on Surface products, where some of the cursor navigation keys share space with F9-F12. Since I use F1-F8 for a lot for Office or Visual Studio, I don't want to have to remember to hit Fn but I also don't want to leave Fn-Lock on because I also need Home, End, PgUp, and PgDn as well. Soooooo, I leave Fn-Lock on and then remapped F9-F12 to Home/End/PgUp/PgDn and then Home/End/PgUp/PgDn to F9-F12. I also disabled Caps Lock and remapped the Right Alt to Left Windows because that's just happy for a laptop. Since other people might make use of this, I put the SKL file in the depot here.
- A more complete list to support more international keyboards
An import/export functionality that allows people to swap keymappings easier- Continued support for new .NET Frameworks