KeyCode issue

[AKMatt]

Hi all, first post here.  New game programmer in general.

I'm working on a chat bar currently for a simple game project, and have run into an issue with KeyEvent processing.

Here is a snippet of relevant code:

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public void keyTyped(KeyEvent e) {         switch(e.getKeyCode()) {             case KeyEvent.VK_LEFT:                 if(textCursorIndex > 0)                     setTextCursorIndex(textCursorIndex-1);                 break;             case KeyEvent.VK_RIGHT:                 if(textCursorIndex < text.length())                     setTextCursorIndex(textCursorIndex+1);                 break;             case KeyEvent.VK_BACK_SPACE:                 if(textCursorIndex > 0) {                     textCursorIndex--;                     removeChar();                 }             case KeyEvent.VK_DELETE:                 if(textCursorIndex < text.length()) {                     removeChar();                 }                 break;             default:                 insertChar(text, e.getKeyChar(), textCursorIndex);                 break;         }     }

This works just fine on my Vaio, however, I am primarily working on an iMac with a nonstandard keyboard, and my "delete" key does not send a VK_DELETE or VK_BACKSPACE event.  The value for e.getKeyCode() when I press "delete" during debugging is "0", which is shared with spacebar.  If somebody could tell me how to account for nonstandard keyboards in key handling code, I would greatly appreciate it.

Thanks!

[ReBirth]

Quoted from KeyEvent API

# Not all keyboards or systems are capable of generating all virtual key codes. No attempt is made in Java to generate these keys artificially.
# Virtual key codes do not identify a physical key: they depend on the platform and keyboard layout. For example, the key that generates VK_Q when using a U.S. keyboard layout will generate VK_A when using a French keyboard layout.

I haven't worked on Mac OS. You can try getKeyChar() method and if see if they give different results.

[Eli Delventhal]

Hi all, first post here.  New game programmer in general.

I'm working on a chat bar currently for a simple game project, and have run into an issue with KeyEvent processing.

Here is a snippet of relevant code:

1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25

public void keyTyped(KeyEvent e) {         switch(e.getKeyCode()) {             case KeyEvent.VK_LEFT:                 if(textCursorIndex > 0)                     setTextCursorIndex(textCursorIndex-1);                 break;             case KeyEvent.VK_RIGHT:                 if(textCursorIndex < text.length())                     setTextCursorIndex(textCursorIndex+1);                 break;             case KeyEvent.VK_BACK_SPACE:                 if(textCursorIndex > 0) {                     textCursorIndex--;                     removeChar();                 }             case KeyEvent.VK_DELETE:                 if(textCursorIndex < text.length()) {                     removeChar();                 }                 break;             default:                 insertChar(text, e.getKeyChar(), textCursorIndex);                 break;         }     }

This works just fine on my Vaio, however, I am primarily working on an iMac with a nonstandard keyboard, and my "delete" key does not send a VK_DELETE or VK_BACKSPACE event.  The value for e.getKeyCode() when I press "delete" during debugging is "0", which is shared with spacebar.  If somebody could tell me how to account for nonstandard keyboards in key handling code, I would greatly appreciate it.

Thanks!

That's odd, I haven't seen that issue before (and I dev on Mac). You can try using JInput, which works differently so would likely avoid this issue.

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[AKMatt]

Thanks.  Yeah, I'll try JInput.

[Mads]

You can try to print what keycode the delete button sends out. At the initialization of the game, check for OS and bind keys accordingly.

Edit: ..Or JInput