[4920] in java-interest
PixelGrabber problem (Need Help)
daemon@ATHENA.MIT.EDU (Vitaly Promislov)
Mon Jan 22 15:53:04 1996
Date: Mon, 22 Jan 96 14:29:40 ???
From: vitaly@diogen.asc.rssi.ru (Vitaly Promislov)
To: java-interest@java.sun.com
Hi All
I met problem with PixelGrabber.
I create empty offscreen image with createImage(w,h) method and after
some drawing on this context try to grab pixel from offscreen image
but have to wait forever.
Thre is small example:
{
Image img;
Graphics g;
img=obs.createImage(width,height);
g=img.getGraphics();
pix_src= new int[width*height];
g.fillRect(0,0,width,height);
PixelGrabber pg = new PixelGrabber(img, 0, 0, width, height, pix_src, 0, width);
boolean stat=false;
try {
stat=pg.grabPixels(); // ???? hang up here
} catch (InterruptedException e) {
System.err.println("interrupted waiting for pixels!");
return;
}
}
if(stat == false)
if ((pg.status() & ImageObserver.ABORT) != 0) {
System.err.println("image fetch aborted or errored");
return;
}
Thank you
Vitaly Promislov
Astro Space Center, Russia e-mail: vitaly@diogen.asc.rssi.ru
fax: 095 333-23-78
Phone: 333-23-12
URL: http://diogen.asc.rssi.ru/Vitaly.html
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These are my opinions only, and do not reflect anything
about my employer, Astro Space Center of Russina Academy of Science.
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