1 files changed, 77 insertions, 0 deletions
diff --git a/src/demos/printext/PrintExt.java b/src/demos/printext/PrintExt.java
new file mode 100755
index 0000000..d2abe17
--- /dev/null
+++ b/src/demos/printext/PrintExt.java
@@ -0,0 +1,77 @@
+/*
+ * Portions Copyright (C) 2003 Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+package demos.printext;
+
+import java.awt.Frame;
+import javax.media.opengl.GL;
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLEventListener;
+import javax.media.opengl.awt.GLCanvas;
+
+
+
+public class PrintExt {
+  public static void main(String[] args) {
+    Frame frame = new Frame();
+    GLCanvas canvas = new GLCanvas();
+    canvas.addGLEventListener(new Listener());
+    frame.setUndecorated(true);
+    frame.add(canvas);
+    frame.setSize(1, 1);
+    frame.setVisible(true);
+  }
+
+  static class Listener implements GLEventListener {
+    public void init(GLAutoDrawable drawable) {
+      GL gl = drawable.getGL();
+      System.out.println("GL vendor: " + gl.glGetString(GL.GL_VENDOR));
+      System.out.println("GL version: " + gl.glGetString(GL.GL_VERSION));
+      System.out.println("GL renderer: " + gl.glGetString(GL.GL_RENDERER));
+      System.out.println("GL extensions:");
+      String[] extensions = gl.glGetString(GL.GL_EXTENSIONS).split(" ");
+      int i = 0;
+      while (i < extensions.length) {
+        System.out.print("  ");
+        String ext = extensions[i++];
+        System.out.print(ext);
+        if (i < extensions.length) {
+          for (int j = 0; j < (40 - ext.length()); j++) {
+            System.out.print(" ");
+          }
+          System.out.println(extensions[i++]);
+        } else {
+          System.out.println();
+        }
+      }
+      runExit();
+    }
+
+    public void dispose(GLAutoDrawable drawable) {
+    }
+
+    public void display(GLAutoDrawable drawable) {
+    }
+
+    public void reshape(GLAutoDrawable drawable, int x, int y, int w, int h) {
+    }
+
+    public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {
+    }
+  }
+
+  private static void runExit() {
+    // Note: calling System.exit() synchronously inside the draw,
+    // reshape or init callbacks can lead to deadlocks on certain
+    // platforms (in particular, X11) because the JAWT's locking
+    // routines cause a global AWT lock to be grabbed. Run the
+    // exit routine in another thread.
+    new Thread(new Runnable() {
+        public void run() {
+          System.exit(0);
+        }
+      }).start();
+  }
+}