Added Display.setDisplayModeAndFullscreen(mode) to switch mode and set fullscreen in one call (idea stolen from MatthiasM). Tweaked FullScreenWindowedTest to use the new method.

src/java/org/lwjgl/opengl/Display.java

@@ -496,10 +496,33 @@ public final class Display {
 	 *                        from getAvailableDisplayModes() or if the mode switch fails.
 	 */
 	public static void setFullscreen(boolean fullscreen) throws LWJGLException {
+		setDisplayModeAndFullscreenInternal(fullscreen, current_mode);
+	}
+
+	/**
+	 * Set the mode of the context. If no context has been created through create(),
+	 * the mode will apply when create() is called. If mode.isFullscreenCapable() is true, the context will become
+	 * a fullscreen context and the display mode is switched to the mode given by getDisplayMode(). If
+	 * mode.isFullscreenCapable() is false, the context will become a windowed context with the dimensions given in the
+	 * mode returned by getDisplayMode(). The native cursor position is also reset.
+	 *
+	 * @param mode The new display mode to set. Must be non-null.
+	 *
+	 * @throws LWJGLException If the mode switch fails.
+	 */
+	public static void setDisplayModeAndFullscreen(DisplayMode mode) throws LWJGLException {
+		setDisplayModeAndFullscreenInternal(mode.isFullscreenCapable(), mode);
+	}
+
+	private static void setDisplayModeAndFullscreenInternal(boolean fullscreen, DisplayMode mode) throws LWJGLException {
 		synchronized ( GlobalLock.lock ) {
+			if (mode == null)
+				throw new NullPointerException("mode must be non-null");
+			DisplayMode old_mode = current_mode;
+			current_mode = mode;
 			boolean was_fullscreen = isFullscreen();
 			Display.fullscreen = fullscreen;
-			if (was_fullscreen != isFullscreen()) {
+			if (was_fullscreen != isFullscreen() || !mode.equals(old_mode)) {
 				if (!isCreated())
 					return;
 				destroyWindow();

src/java/org/lwjgl/test/opengl/FullScreenWindowedTest.java

@@ -74,13 +74,19 @@ public class FullScreenWindowedTest {
 		mainLoop();
 		cleanup();
 	}
+
+	private void switchMode() throws LWJGLException {
+		mode = findDisplayMode(800, 600, Display.getDisplayMode().getBitsPerPixel());
+		Display.setDisplayModeAndFullscreen(mode);
+	}
+
 	/**
 	 * Initializes the test
 	 */
 	private void initialize() {
 		try {
 			//find displaymode
-			mode = findDisplayMode(800, 600, Display.getDisplayMode().getBitsPerPixel());
+			switchMode();
 			// start of in windowed mode
 			Display.create();
 			glInit();
@@ -163,7 +169,7 @@ public class FullScreenWindowedTest {
 		//check for fullscreen key
 		if (Keyboard.isKeyDown(Keyboard.KEY_F)) {
 			try {
-				Display.setFullscreen(true);
+				switchMode();
 			} catch (Exception e) {
 				e.printStackTrace();
 			}
@@ -171,7 +177,9 @@ public class FullScreenWindowedTest {
 		//check for window key
 		if (Keyboard.isKeyDown(Keyboard.KEY_W)) {
 			try {
-				Display.setFullscreen(false);
+				mode = new DisplayMode(640, 480);
+				Display.setDisplayModeAndFullscreen(mode);
+				glInit();
 			} catch (Exception e) {
 				e.printStackTrace();
 			}
@@ -237,15 +245,10 @@ public class FullScreenWindowedTest {
 		DisplayMode[] modes = Display.getAvailableDisplayModes();
 		for (int i = 0; i < modes.length; i++) {
 			if (modes[i].getWidth() == width && modes[i].getHeight() == height && modes[i].getBitsPerPixel() >= bpp && modes[i].getFrequency() <= 60) {
-				try {
-					Display.setDisplayMode(modes[i]);
-				} catch (LWJGLException e) {
-					e.printStackTrace();
-				}
 				return modes[i];
 			}
 		}
-		return Display.getDisplayMode();
+		return Display.getDesktopDisplayMode();
 	}
 	/**
 	 * Initializes OGL