JavaFX如何获取对应平台的SHORTCUT快捷键代表字符？

Hey there! Let's break down how to document the keyboard shortcuts for your JavaFX app properly, especially since you're using the platform-agnostic SHORTCUT modifier (smart move following the official docs!).

1. Stick to Platform-Agnostic Language in Your Docs #

The beauty of using SHORTCUT instead of hardcoding CONTROL or COMMAND is that JavaFX automatically maps it to the correct system-specific key:

• On Windows/Linux, it translates to the Ctrl key
• On macOS, it translates to the Command (⌘) key

So in your help docs, you don't need to write separate instructions for each OS. Just tell users to press SHORTCUT + [Key]—and they'll see the right key symbol in the app menu automatically. For example, your Exit menu item with SHORTCUT_DOWN + Q will show as Ctrl+Q on Windows and ⌘+Q on Mac.

2. Include a Code Snippet for Context (Optional but Helpful) #

If you want to show how you implemented the shortcuts (maybe for other devs or to add transparency), here's a quick example of setting the accelerator for an Exit menu item:

// Create Exit menu item
MenuItem exitMenuItem = new MenuItem("Exit");
// Set platform-agnostic shortcut: SHORTCUT + Q
exitMenuItem.setAccelerator(
    new KeyCodeCombination(KeyCode.Q, KeyCombination.SHORTCUT_DOWN)
);

This code ensures the shortcut works consistently across all supported platforms, and the menu displays the correct key combo without extra work from you.

3. Add a Quick Note for Clarity #

To avoid any confusion for less tech-savvy users, you can add a small note in your help docs:

Pro Tip: On Windows/Linux, "SHORTCUT" means the Ctrl key; on macOS, it means the Command (⌘) key. The app menu will always show the right key symbol for your system.

内容的提问来源于stack exchange，提问作者Thorsten