Grab mouse using OpenGL

Processing Coding Questions
10

This works for me on Ubuntu -

import com.jogamp.newt.opengl.GLWindow;

void setup() {
 size(640,480,P3D);
 background(0);
 GLWindow window = (GLWindow)surface.getNative();
 window.confinePointer(true);
 window.setPointerVisible(false);
}

void draw() {
 stroke(255);
 line(pmouseX, pmouseY, mouseX, mouseY);
}

Added draw() or pressing ESCAPE to close the window doesn’t work, and it’s useful to see where the mouse is.

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