copy the content under the processing window.

morgulbrut

Hi community.

Is it somehow possible to read the screen content under the processing window, to make stuff with it? The idea is to make a resizable window, which copies the normal stuff, so i can for example invert it.

TfGuy44

Not easily, no. :)) =)) :>

Chrisir

well, strg-a, strg-c you can get it

but since you put it in with println you can just store it in an arraylist every time you use println

TfGuy44

I lied. Here:

import java.awt.Robot;
import java.awt.*;
import java.awt.image.*;

PImage screenShot;

void setup()
{
    size( 600,600 );

    takeScreenShot();

    background( 0 );
}

void draw()
{
    image( screenShot, 0, 0 );
}

void takeScreenShot()
{
    Rectangle screenRect = new Rectangle( Toolkit.getDefaultToolkit().getScreenSize() );

    try {

        BufferedImage screenBuffer = new Robot().createScreenCapture( screenRect );

        screenShot = new PImage( screenBuffer.getWidth(), screenBuffer.getHeight(), PConstants.ARGB );
        screenBuffer.getRGB( 0, 0, screenShot.width, screenShot.height, screenShot.pixels, 0, screenShot.width );
        screenShot.updatePixels();

    } catch ( AWTException e ) {
        e.printStackTrace();
    }
}

From:

http://vormplus.be/blog/article/taking-screenshots-with-processing

GoToLoop

http://forum.processing.org/two/discussion/8025/take-a-screen-shot-of-the-screen

GoToLoop

It's not documented at all but Processing's PImage class got an overloaded constructor which accepts an Image object:
https://github.com/processing/processing/blob/master/core/src/processing/core/PImage.java#L306

Therefore, we can directly pass Robot's createScreenCapture() as PImage's argument, since the former returns a BufferedImage:

new PImage( new Robot().createScreenCapture(new Rectangle(displayWidth, displayHeight)) );

No need for some extra getRGB() step at all! :D

Only use getRGB() when we already got an instantiated PImage w/ correct dimensions! :P