Newton Developer Technical Information: Newton Programmer's Guide: 2.1 OS Addendum /

Chapter 4 - Keyboard Enhancements / Using the Keyboard Enhancements

Displaying the Popup Command Key Help Slip

When the user has held down the command key for a certain period of time (1.5 seconds), the system makes the following call:

 SendKeyMessage(keyview, '__keyHelpOpenScript);

When the command key is released, the following call is made:

 SendKeyMessage(keyview, '__keyHelpCloseScript);

The standard implementation of this command, which is in the root view, dynamically builds and displays the standard "Keyboard Commands" popup help slip, according to the available keyCommands. You can provide your own versions of these scripts to modify or override the default popup help slip.