Detect when key up?

[Griffon2-6]

Hi,

Right now, I am doing a sound program for Turing that simulates a violin. Now I want a sound file to play when a key is pressed down, and while it is held down, I do not want the sound to autorepeat with the keystrokes. When the key is released, I want the sound to stop playing.

The thing I can't get working is the autorepeat part. I am stumped as to what I can do to prevent the sound file from autorepeating. I am using Input.KeyDown to detect keystrokes.

Can anyone help?

Thanks!

[Tony]

Ask yourself what "on key up" event really means. In simple terms, it's when the key used to be down last time you checked it, but now it is up. Input.KeyDown tells you where they keys are now. Before calling it though, record the state of how the keys used to be before, then compare for changes.

[ericfourfour]

This is the simplest way of doing this is:

Turing:

if hasch and getchar = KEY_ENTER then     % Play sound     Input.Flush end if

hasch returns true if there is a key down.
getchar returns the key that is down.
This combination is good if only one button is being used at a time.

Input.Flush empties the keyboard buffer (the memory that stores keystrokes).

[Tony]

But a pressed down key will continuously fill the buffer, so even if it's flushed at one point, it will just refill, and the code will execute again, from the same key.

[ericfourfour]

I think the question needs to be cleared up. I thought that he wanted it to play as long as the key is down and when the key is released, for it to stop playing. Griffon2-6 should post some code.