doesn't seem to be actually stopping things

meaning that libraries and whatnot aren't getting dispose() called properly
either

the stop() method may not be called consistently, especially in browsers.

also in the p5 environment, or when the close box is hit on an external frame.

this is separate from the issue of hitting stop causing things to lock up,
bug #126.

ok, to clarify again, there are two issues.

1) stop() is not getting called consistently (whether by browsers or the p5
environment)

2) as a result (though there could be contributing factors), the dispose()
methods on libraries are not being called either, meaning that threads may
keep going.

*** Bug 264 has been marked as a duplicate of this bug. ***

bug #264 has an example of this being a problem for the Capture class, where the capture
continues even after stop is hit.

may need to at least cover the issue of the stop button being hit in the environment and
killing things off.

os-x 10.4, processing 133, java 1.4.2, powerbook g4, speed link usb camera

same problem, just thought i'd add my workaround ...

i have a really cheap camera which is going to be used for tracking. i runs on the macam
(http://webcam-osx.sourceforge.net/) quicktime component which works fine so far except
for one problem. most of the time when i restart (close window and reopen) the sketch it
will report:

quicktime.std.StdQTException[QTJava:
6.1.7g],-9405=couldntGetRequiredComponent,QT.vers:7168000
at quicktime.std.StdQTException.checkError(StdQTException.java:38)

java.lang.NullPointerException
at Temporary_5218_3151.stop(Temporary_5218_3151.java:76)
at processing.core.PApplet.die(PApplet.java:2492)
at processing.core.PApplet.die(PApplet.java:2511)
at processing.video.Capture.<init>(Capture.java:219)
at Temporary_5218_3151.setup(Temporary_5218_3151.java:11)
at processing.core.PApplet.handleDisplay(PApplet.java:1384)
at processing.core.PGraphics.requestDisplay(PGraphics.java:690)
at processing.core.PApplet.run(PApplet.java:1556)
at java.lang.Thread.run(Thread.java:552)

things i tested that did not work:

1)
registerDispose( cam );

2)
public void dispose()
{
cam.dispose();
}

3)
public void stop()
{
cam.stop(); // this is only called for applets, right?
}

4)
instead of just closing the window:
pressing stop or play buttons in processing, hitting command-q

workaround i found:

Capture cam;

void setup () {
size( 320, 240 );
cam = new Capture( this, width, height, 24 );
}

boolean videoAvailable = true;

void draw ()
{
if ( videoAvailable ) { /* normal draw code */ }
else if ( !videoAvailable )
{
cam.dispose();
System.exit(0);
}
}

void keyReleased ()
{
if ( key == 'q' )
{
videoAvailable = false;
}
}

// now hitting 'q' kills the running sketch and successfully stops capture ...

found another workaround to the problem described before (camera not working a second time
because dispose was not called) ... in case someone needs it.

void setup()
{
try { quicktime.QTSession.open(); }
catch ( Exception e ) { /* ignore */ }
quicktime.QTSession.close();

// ...
}

*** This bug has been marked as a duplicate of 131 ***