One method: You could use the keyDown event to get notified when a hard key
is pressed. I would then start polling the key to see when its released.
Read about the Key Manager in the SDK docs for specific functions. The
Reptoids source included in the SDK may help.
----- Original Message -----
From: "Mike McCollister" <[EMAIL PROTECTED]>
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Monday, September 09, 2002 11:48 AM
Subject: How to Detect if a hard key is pressed
> Hi,
>
> I am working on an application that will use the hard keys as a means of
input.
> In my test code, I want to be able to press a hard key and have the
device
> beep until I lift the hard key. I can sense if a hard key is pressed by
doing
> this:
>
> // handle pressing of hard keys
> if(event.eType == keyDownEvent) {
> if(TxtCharIsHardKey(event.data.keyDown.modifiers,
> event.data.keyDown.chr)) {
> switch(event.data.keyDown.chr) {
> case vchrHard1:
> case vchrHard2:
> case vchrHard3:
> case vchrHard4:
> bGotHardKey = true;
> break;
>
> default:
> break;
> }
> }
> }
>
> // handle any system events
> if(bGotHardKey == false)
> if(SysHandleEvent(&event))
> continue;
>
> in my event loop. I can then handle what to do with the hard key in my
> AppHandleEvent routine. I can even detect if the key is pressed down for
a
> long time using the autoRepeatKeyMask. However, I don't know how to
detect
> when the key is lifted (or unpressed). There seems to be no event for
when a
> key is no longer pressed. Any ideas on how to do that?
>
> Thanks,
>
> Mike McCollister
>
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