


The delta key can be input in different ways, considering the various operating systems. The delta symbol can pose a challenge when typing as it is not a second key. Δ represents the uppercase delta symbol, and the lowercase delta symbol is represented by δ. The is the fourth letter in the Greek alphabet.

Tested on el capitan, in the hard way.Today, we’ll know about the Delta Symbol and How to Type it on Keyboard. Oh, by the way, if you bind a key to an undefined action, your application will have a memory leak and your system will run out of memory in a few seconds. Here is a good list of things you can bind to: You can also add other keys you like! Official reference: In fact, I'm writing this answer with the option keybindings enabled. But you can still get that by using Ctrl-Q before the combination. "~\177" = "deleteWordBackward:" /* Option-delete */ "~\010" = "deleteWordBackward:" /* Option-backspace */ Place a file at: ~/Library/KeyBindings/DefaultKeyBinding.dict as: /* ~/Library/KeyBindings/DefaultKeyBinding.dict */ Please be patient to find keyboard layouts list in the settings. Step 4 can change slightly across MacOS versions. You should find My Layout in the list and select it.Go to Input Sources -> (hit +) -> Select Others.Open System Preferences -> Language Input Methods (or Keyboard -> Input Sources).Move it to ~/Library/Keyboard\ Layouts/.Download the key mapping file My Layout.keylayout.So you get exactly the same behaviour as you have for other command keys! But, the "option key press" is triggered by OS, and detected by your IDE. I'm sharing the working file for standard US English keyboard layout:Īfter enabling this custom mapping, if you type a letter with "option" key pressed, nothing is printed to text output. Select "Set blank for option key" radio in the form, submit the form, and download a patched keyboard layout with "option" key feature disabled.

Proved to work on MacOSX 10.7+ with IntelliJ Idea, Php/WebStorm, NetBeans, Eclipse. You can create a custom mapping in several clicks out of almost any keyboard layout. You can create a custom keyboard mapping with option-letters all set to BLANK using online tool from this webpage.
