NEWT Screen: Add virtual top-left origin getX()/getY() ; WindowsWindow.c: allow negative coordinates

- ScreenImpl:
  - Use Point & Dimension for holding virtual origin and size
  - updateScreenSize() -> updateVirtualScreenOriginAndSize()
  - DimensionImmutable getNativeScreenSizeImpl()
    -> void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize)

- WindowImpl setFullscreen(true): Use Screen virtual origin

- WindowsWindow.c
  - For x/y coords use GET_X_LPARAM/GET_Y_LPARAM which casts '(int)(short)'
    to preserve negative coordinates.

  - NewtWindow_setVisiblePosSize() allow negative coordinates

13 files changed, 147 insertions, 74 deletions

diff --git a/src/newt/classes/com/jogamp/newt/Screen.java b/src/newt/classes/com/jogamp/newt/Screen.java
index b6d863965..26f19ad6b 100644
--- a/src/newt/classes/com/jogamp/newt/Screen.java
+++ b/src/newt/classes/com/jogamp/newt/Screen.java
@@ -120,12 +120,22 @@ public abstract class Screen {
     public abstract int getIndex();
 
     /**
-     * @return the current screen width, reflecting {@link ScreenMode} rotation 
+     * @return the x position of the virtual top-left origin.
+     */
+    public abstract int getX();
+    
+    /**
+     * @return the y position of the virtual top-left origin.
+     */
+    public abstract int getY();
+    
+    /**
+     * @return the <b>rotated</b> virtual width.
      */
     public abstract int getWidth();
 
     /**
-     * @return the current screen height, reflecting {@link ScreenMode} rotation
+     * @return the <b>rotated</b> virtual height.
      */
     public abstract int getHeight();
 
diff --git a/src/newt/classes/jogamp/newt/ScreenImpl.java b/src/newt/classes/jogamp/newt/ScreenImpl.java
index a8e6e68bd..98e851937 100644
--- a/src/newt/classes/jogamp/newt/ScreenImpl.java
+++ b/src/newt/classes/jogamp/newt/ScreenImpl.java
@@ -45,7 +45,9 @@ import com.jogamp.newt.util.MonitorMode;
 import com.jogamp.newt.util.ScreenModeUtil;
 
 import javax.media.nativewindow.*;
+import javax.media.nativewindow.util.Dimension;
 import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 import javax.media.nativewindow.util.SurfaceSize;
 
 import java.security.*;
@@ -61,8 +63,10 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
     protected int hashCode;
     protected AbstractGraphicsScreen aScreen;
     protected int refCount; // number of Screen references by Window
-    protected int width=-1, height=-1; // detected values: set using setScreenSize
-    protected static int usrWidth=-1, usrHeight=-1; // property values: newt.ws.swidth and newt.ws.sheight
+    protected Point vOrigin = new Point(0, 0); // virtual top-left origin
+    protected Dimension vSize = new Dimension(0, 0); // virtual rotated screen size
+    protected static Dimension usrSize = null; // property values: newt.ws.swidth and newt.ws.sheight
+    protected static volatile boolean usrSizeQueried = false;
     private static AccessControlContext localACC = AccessController.getContext();
     private ArrayList<ScreenModeListener> referencedScreenModeListener = new ArrayList<ScreenModeListener>();
     long t0; // creationTime
@@ -102,13 +106,15 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
 
     public static Screen create(Display display, int idx) {
         try {
-            if(usrWidth<0 || usrHeight<0) {
+            if(!usrSizeQueried) {
                 synchronized (Screen.class) {
-                    if(usrWidth<0 || usrHeight<0) {
-                        usrWidth  = Debug.getIntProperty("newt.ws.swidth", true, localACC);
-                        usrHeight = Debug.getIntProperty("newt.ws.sheight", true, localACC);
-                        if(usrWidth>0 || usrHeight>0) {
-                            System.err.println("User screen size "+usrWidth+"x"+usrHeight);
+                    if(!usrSizeQueried) {
+                        usrSizeQueried = true;
+                        final int w = Debug.getIntProperty("newt.ws.swidth", true, localACC);
+                        final int h = Debug.getIntProperty("newt.ws.sheight", true, localACC);                        
+                        if(w>0 && h>0) {
+                            usrSize = new Dimension(w, h);
+                            System.err.println("User screen size "+usrSize);
                         }
                     }
                 }
@@ -178,7 +184,7 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
                 throw new NativeWindowException("Screen.createNative() failed to instanciate an AbstractGraphicsScreen");
             }
             initScreenModeStatus();
-            updateScreenSize();            
+            updateVirtualScreenOriginAndSize();            
             if(DEBUG) {
                 System.err.println("Screen.createNative() END ("+DisplayImpl.getThreadName()+", "+this+")");
             }
@@ -252,13 +258,15 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
     protected abstract int validateScreenIndex(int idx);
     
     /**
-     * Returns the <b>rotated</b> virtual ScreenSize.
+     * Stores the virtual origin and virtual <b>rotated</b> screen size.
      * <p>
      * This method is called after the ScreenMode has been set, 
      * hence you may utilize it.
      * </p> 
+     * @param virtualOrigin the store for the virtual origin
+     * @param virtualSize the store for the virtual rotated size
      */
-    protected abstract DimensionImmutable getNativeScreenSizeImpl(); 
+    protected abstract void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize); 
     
     public final String getFQName() {
         return fqname;
@@ -267,10 +275,9 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
     /**
      * Updates the <b>rotated</b> virtual ScreenSize using the native impl.
      */
-    protected void updateScreenSize() {
-        final DimensionImmutable dim = getNativeScreenSizeImpl();
-        width=dim.getWidth(); height=dim.getHeight();
-        System.err.println("Detected screen size "+width+"x"+height);
+    protected void updateVirtualScreenOriginAndSize() {
+        getVirtualScreenOriginAndSize(vOrigin, vSize);
+        System.err.println("Detected screen origin "+vOrigin+", size "+vSize);
     }
 
     public final Display getDisplay() {
@@ -289,19 +296,15 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
         return null != aScreen;
     }
 
+    public int getX() { return vOrigin.getX(); }
+    public int getY() { return vOrigin.getY(); }
     
-    /**
-     * @return the <b>rotated</b> virtual width.
-     */
     public final int getWidth() {
-        return (usrWidth>0) ? usrWidth : (width>0) ? width : 480;
+        return (null != usrSize) ? usrSize.getWidth() : vSize.getWidth();
     }
 
-    /**
-     * @return the <b>rotated</b> virtual height.
-     */
     public final int getHeight() {
-        return (usrHeight>0) ? usrHeight : (height>0) ? height : 480;
+        return (null != usrSize) ? usrSize.getHeight() : vSize.getHeight();
     }
 
     @Override
@@ -403,7 +406,7 @@ public abstract class ScreenImpl extends Screen implements ScreenModeListener {
 
     public void screenModeChanged(ScreenMode sm, boolean success) {
         if(success) {
-            updateScreenSize();
+            updateVirtualScreenOriginAndSize();
         }
         for(int i=0; i<referencedScreenModeListener.size(); i++) {
             ((ScreenModeListener)referencedScreenModeListener.get(i)).screenModeChanged(sm, success);
diff --git a/src/newt/classes/jogamp/newt/WindowImpl.java b/src/newt/classes/jogamp/newt/WindowImpl.java
index 7c811c66a..f667d7540 100644
--- a/src/newt/classes/jogamp/newt/WindowImpl.java
+++ b/src/newt/classes/jogamp/newt/WindowImpl.java
@@ -1677,7 +1677,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
                         nfs_y = WindowImpl.this.y;
                         nfs_width = WindowImpl.this.width;
                         nfs_height = WindowImpl.this.height;
-                        x = 0; y = 0;
+                        x = screen.getX(); y = screen.getY();
                         w = screen.getWidth();
                         h = screen.getHeight();
                     } else {
diff --git a/src/newt/classes/jogamp/newt/driver/android/AndroidScreen.java b/src/newt/classes/jogamp/newt/driver/android/AndroidScreen.java
index f403bc425..e108ed0bb 100644
--- a/src/newt/classes/jogamp/newt/driver/android/AndroidScreen.java
+++ b/src/newt/classes/jogamp/newt/driver/android/AndroidScreen.java
@@ -30,7 +30,7 @@ package jogamp.newt.driver.android;
 
 import javax.media.nativewindow.*;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 
 import com.jogamp.newt.ScreenMode;
 import com.jogamp.newt.util.ScreenModeUtil;
@@ -80,9 +80,12 @@ public class AndroidScreen extends jogamp.newt.ScreenImpl {
         return 0; // FIXME: only one screen available ? 
     }
     
-    protected DimensionImmutable getNativeScreenSizeImpl() {
+    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
+        virtualOrigin.setX(0);
+        virtualOrigin.setY(0);
         final ScreenMode sm = getCurrentScreenMode();
-        return new Dimension(sm.getRotatedWidth(), sm.getRotatedHeight());
+        virtualSize.setWidth(sm.getRotatedWidth());
+        virtualSize.setHeight(sm.getRotatedHeight());
     }
     
     //----------------------------------------------------------------------
diff --git a/src/newt/classes/jogamp/newt/driver/awt/AWTScreen.java b/src/newt/classes/jogamp/newt/driver/awt/AWTScreen.java
index e2e0105eb..9eed930b6 100644
--- a/src/newt/classes/jogamp/newt/driver/awt/AWTScreen.java
+++ b/src/newt/classes/jogamp/newt/driver/awt/AWTScreen.java
@@ -39,7 +39,7 @@ import jogamp.newt.ScreenImpl;
 import javax.media.nativewindow.awt.AWTGraphicsDevice;
 import javax.media.nativewindow.awt.AWTGraphicsScreen;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 
 public class AWTScreen extends ScreenImpl {
     public AWTScreen() {
@@ -57,8 +57,8 @@ public class AWTScreen extends ScreenImpl {
      *  Used by AWTWindow ..
      */
     @Override
-    protected void updateScreenSize() {
-        super.updateScreenSize();
+    protected void updateVirtualScreenOriginAndSize() {
+        super.updateVirtualScreenOriginAndSize();
     }
 
     protected void closeNativeImpl() { }
@@ -67,12 +67,14 @@ public class AWTScreen extends ScreenImpl {
         return idx; // pass through ... 
     }    
 
-    protected DimensionImmutable getNativeScreenSizeImpl() {
+    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
         final DisplayMode mode = ((AWTGraphicsDevice)getDisplay().getGraphicsDevice()).getGraphicsDevice().getDisplayMode();
         if(null != mode) {
-            return new Dimension(mode.getWidth(), mode.getHeight());
+            virtualOrigin.setX(0);
+            virtualOrigin.setY(0);
+            virtualSize.setWidth(mode.getWidth());
+            virtualSize.setHeight(mode.getHeight());
         }
-        return null;
     }
     
 }
diff --git a/src/newt/classes/jogamp/newt/driver/awt/AWTWindow.java b/src/newt/classes/jogamp/newt/driver/awt/AWTWindow.java
index 5b6fcedbe..e9e3ec0ba 100644
--- a/src/newt/classes/jogamp/newt/driver/awt/AWTWindow.java
+++ b/src/newt/classes/jogamp/newt/driver/awt/AWTWindow.java
@@ -156,7 +156,7 @@ public class AWTWindow extends WindowImpl {
             ((AWTScreen)getScreen()).setAWTGraphicsScreen((AWTGraphicsScreen)cfg.getScreen());
             ((AWTDisplay)getScreen().getDisplay()).setAWTGraphicsDevice((AWTGraphicsDevice)cfg.getScreen().getDevice());
     
-            ((AWTScreen)getScreen()).updateScreenSize();
+            ((AWTScreen)getScreen()).updateVirtualScreenOriginAndSize();
         }
         return res;
     }
diff --git a/src/newt/classes/jogamp/newt/driver/broadcom/egl/Screen.java b/src/newt/classes/jogamp/newt/driver/broadcom/egl/Screen.java
index 86a27a407..11b8dfcf9 100644
--- a/src/newt/classes/jogamp/newt/driver/broadcom/egl/Screen.java
+++ b/src/newt/classes/jogamp/newt/driver/broadcom/egl/Screen.java
@@ -35,7 +35,7 @@ package jogamp.newt.driver.broadcom.egl;
 
 import javax.media.nativewindow.*;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 
 public class Screen extends jogamp.newt.ScreenImpl {
 
@@ -57,8 +57,11 @@ public class Screen extends jogamp.newt.ScreenImpl {
         return 0; // only one screen available 
     }
      
-    protected DimensionImmutable getNativeScreenSizeImpl() {
-        return new Dimension(fixedWidth, fixedHeight); // FIXME
+    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
+        virtualOrigin.setX(0);
+        virtualOrigin.setY(0);
+        virtualSize.setWidth(fixedWidth); // FIXME
+        virtualSize.setHeight(fixedHeight); // FIXME
     }
     
     //----------------------------------------------------------------------
diff --git a/src/newt/classes/jogamp/newt/driver/intel/gdl/Screen.java b/src/newt/classes/jogamp/newt/driver/intel/gdl/Screen.java
index 6e156183f..66ad1c691 100644
--- a/src/newt/classes/jogamp/newt/driver/intel/gdl/Screen.java
+++ b/src/newt/classes/jogamp/newt/driver/intel/gdl/Screen.java
@@ -33,10 +33,10 @@
 
 package jogamp.newt.driver.intel.gdl;
 
-import jogamp.newt.*;
-import javax.media.nativewindow.*;
+import javax.media.nativewindow.AbstractGraphicsDevice;
+import javax.media.nativewindow.DefaultGraphicsScreen;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 
 public class Screen extends jogamp.newt.ScreenImpl {
 
@@ -59,8 +59,11 @@ public class Screen extends jogamp.newt.ScreenImpl {
         return 0; // only one screen available 
     }
         
-    protected DimensionImmutable getNativeScreenSizeImpl() {
-        return new Dimension(cachedWidth, cachedHeight);
+    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
+        virtualOrigin.setX(0);
+        virtualOrigin.setY(0);
+        virtualSize.setWidth(cachedWidth);
+        virtualSize.setHeight(cachedHeight);
     }
     
     //----------------------------------------------------------------------
diff --git a/src/newt/classes/jogamp/newt/driver/kd/KDScreen.java b/src/newt/classes/jogamp/newt/driver/kd/KDScreen.java
index bbfef370c..6b6aecb20 100644
--- a/src/newt/classes/jogamp/newt/driver/kd/KDScreen.java
+++ b/src/newt/classes/jogamp/newt/driver/kd/KDScreen.java
@@ -36,7 +36,7 @@ package jogamp.newt.driver.kd;
 import jogamp.newt.ScreenImpl;
 import javax.media.nativewindow.*;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 
 public class KDScreen extends ScreenImpl {
     static {
@@ -56,8 +56,11 @@ public class KDScreen extends ScreenImpl {
         return 0; // only one screen available 
     }       
     
-    protected DimensionImmutable getNativeScreenSizeImpl() {
-        return new Dimension(cachedWidth, cachedHeight);
+    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
+        virtualOrigin.setX(0);
+        virtualOrigin.setY(0);
+        virtualSize.setWidth(cachedWidth);
+        virtualSize.setHeight(cachedHeight);
     }
     
     protected void sizeChanged(int w, int h) {
diff --git a/src/newt/classes/jogamp/newt/driver/macosx/MacScreen.java b/src/newt/classes/jogamp/newt/driver/macosx/MacScreen.java
index 4954b0569..3204982be 100644
--- a/src/newt/classes/jogamp/newt/driver/macosx/MacScreen.java
+++ b/src/newt/classes/jogamp/newt/driver/macosx/MacScreen.java
@@ -37,8 +37,8 @@ package jogamp.newt.driver.macosx;
 import java.util.List;
 
 import javax.media.nativewindow.DefaultGraphicsScreen;
-import javax.media.nativewindow.util.DimensionImmutable;
 import javax.media.nativewindow.util.Dimension;
+import javax.media.nativewindow.util.Point;
 
 import jogamp.newt.ScreenImpl;
 
@@ -111,8 +111,11 @@ public class MacScreen extends ScreenImpl {
         return idx; 
     }
         
-    protected DimensionImmutable getNativeScreenSizeImpl() {
-        return new Dimension(getWidthImpl0(screen_idx), getHeightImpl0(screen_idx));
+    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
+        virtualOrigin.setX(0);
+        virtualOrigin.setY(0);
+        virtualSize.setWidth(getWidthImpl0(screen_idx));
+        virtualSize.setHeight(getHeightImpl0(screen_idx));
     }
     
     private native int[] getScreenMode0(int screen_index, int mode_index);
diff --git a/src/newt/classes/jogamp/newt/driver/windows/WindowsScreen.java b/src/newt/classes/jogamp/newt/driver/windows/WindowsScreen.java
index 7e3e3626c..f8bce9da3 100644
--- a/src/newt/classes/jogamp/newt/driver/windows/WindowsScreen.java
+++ b/src/newt/classes/jogamp/newt/driver/windows/WindowsScreen.java
@@ -35,7 +35,7 @@ package jogamp.newt.driver.windows;
 
 import javax.media.nativewindow.DefaultGraphicsScreen;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 
 import jogamp.newt.ScreenImpl;
 
@@ -106,13 +106,17 @@ public class WindowsScreen extends ScreenImpl {
         return 0; // big-desktop, only one screen available 
     }
         
-    protected DimensionImmutable getNativeScreenSizeImpl() {
-        return new Dimension(getWidthImpl0(screen_idx), getHeightImpl0(screen_idx));
+    protected void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize) {
+        virtualOrigin.setX(getOriginX0(screen_idx));
+        virtualOrigin.setY(getOriginY0(screen_idx));
+        virtualSize.setWidth(getWidthImpl0(screen_idx));
+        virtualSize.setHeight(getHeightImpl0(screen_idx));
     }
     
     // Native calls
+    private native int getOriginX0(int screen_idx);
+    private native int getOriginY0(int screen_idx);
     private native int getWidthImpl0(int scrn_idx);
-
     private native int getHeightImpl0(int scrn_idx);
 
     private native int[] getScreenMode0(int screen_index, int mode_index);
diff --git a/src/newt/classes/jogamp/newt/driver/x11/X11Screen.java b/src/newt/classes/jogamp/newt/driver/x11/X11Screen.java
index c52a21220..ed5ebc04e 100644
--- a/src/newt/classes/jogamp/newt/driver/x11/X11Screen.java
+++ b/src/newt/classes/jogamp/newt/driver/x11/X11Screen.java
@@ -44,7 +44,7 @@ import com.jogamp.newt.util.ScreenModeUtil;
 import java.util.List;
 
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.Point;
 import javax.media.nativewindow.x11.*;
 
 public class X11Screen extends ScreenImpl {
@@ -268,10 +268,14 @@ public class X11Screen extends ScreenImpl {
         }
     }
         
-    protected DimensionImmutable getNativeScreenSizeImpl() {
-        return display.runWithLockedDisplayHandle( new DisplayImpl.DisplayRunnable<DimensionImmutable>() {
-            public DimensionImmutable run(long dpy) {
-                return new Dimension(getWidth0(dpy, screen_idx), getHeight0(dpy, screen_idx));
+    protected void getVirtualScreenOriginAndSize(final Point virtualOrigin, final Dimension virtualSize) {
+        display.runWithLockedDisplayHandle( new DisplayImpl.DisplayRunnable<Object>() {
+            public Object run(long dpy) {
+                virtualOrigin.setX(0);
+                virtualOrigin.setY(0);
+                virtualSize.setWidth(getWidth0(dpy, screen_idx));
+                virtualSize.setHeight(getHeight0(dpy, screen_idx));
+                return null;
             } } );        
     }    
     
diff --git a/src/newt/native/WindowsWindow.c b/src/newt/native/WindowsWindow.c
index b763d5cad..97fe6f28d 100644
--- a/src/newt/native/WindowsWindow.c
+++ b/src/newt/native/WindowsWindow.c
@@ -869,7 +869,7 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         (*env)->CallVoidMethod(env, window, sendMouseEventID,
                                (jint) EVENT_MOUSE_PRESSED,
                                GetModifiers(),
-                               (jint) LOWORD(lParam), (jint) HIWORD(lParam),
+                               (jint) GET_X_LPARAM(lParam), (jint) GET_Y_LPARAM(lParam),
                                (jint) 1, (jint) 0);
         useDefWindowProc = 1;
         break;
@@ -878,7 +878,7 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         (*env)->CallVoidMethod(env, window, sendMouseEventID,
                                (jint) EVENT_MOUSE_RELEASED,
                                GetModifiers(),
-                               (jint) LOWORD(lParam), (jint) HIWORD(lParam),
+                               (jint) GET_X_LPARAM(lParam), (jint) GET_Y_LPARAM(lParam),
                                (jint) 1, (jint) 0);
         useDefWindowProc = 1;
         break;
@@ -889,7 +889,7 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         (*env)->CallVoidMethod(env, window, sendMouseEventID,
                                (jint) EVENT_MOUSE_PRESSED,
                                GetModifiers(),
-                               (jint) LOWORD(lParam), (jint) HIWORD(lParam),
+                               (jint) GET_X_LPARAM(lParam), (jint) GET_Y_LPARAM(lParam),
                                (jint) 2, (jint) 0);
         useDefWindowProc = 1;
         break;
@@ -898,7 +898,7 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         (*env)->CallVoidMethod(env, window, sendMouseEventID,
                                (jint) EVENT_MOUSE_RELEASED,
                                GetModifiers(),
-                               (jint) LOWORD(lParam), (jint) HIWORD(lParam),
+                               (jint) GET_X_LPARAM(lParam), (jint) GET_Y_LPARAM(lParam),
                                (jint) 2, (jint) 0);
         useDefWindowProc = 1;
         break;
@@ -909,7 +909,7 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         (*env)->CallVoidMethod(env, window, sendMouseEventID,
                                (jint) EVENT_MOUSE_PRESSED,
                                GetModifiers(),
-                               (jint) LOWORD(lParam), (jint) HIWORD(lParam),
+                               (jint) GET_X_LPARAM(lParam), (jint) GET_Y_LPARAM(lParam),
                                (jint) 3, (jint) 0);
         useDefWindowProc = 1;
         break;
@@ -918,7 +918,7 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         (*env)->CallVoidMethod(env, window, sendMouseEventID,
                                (jint) EVENT_MOUSE_RELEASED,
                                GetModifiers(),
-                               (jint) LOWORD(lParam), (jint) HIWORD(lParam),
+                               (jint) GET_X_LPARAM(lParam), (jint) GET_Y_LPARAM(lParam),
                                (jint) 3,  (jint) 0);
         useDefWindowProc = 1;
         break;
@@ -927,7 +927,7 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         (*env)->CallVoidMethod(env, window, sendMouseEventID,
                                (jint) EVENT_MOUSE_MOVED,
                                GetModifiers(),
-                               (jint) LOWORD(lParam), (jint) HIWORD(lParam),
+                               (jint) GET_X_LPARAM(lParam), (jint) GET_Y_LPARAM(lParam),
                                (jint) 0,  (jint) 0);
         useDefWindowProc = 1;
         break;
@@ -973,8 +973,8 @@ static LRESULT CALLBACK wndProc(HWND wnd, UINT message,
         break;
 
     case WM_MOVE:
-        DBG_PRINT("*** WindowsWindow: WM_MOVE window %p, %d/%d\n", wnd, (int)LOWORD(lParam), (int)HIWORD(lParam));
-        (*env)->CallVoidMethod(env, window, positionChangedID, JNI_FALSE, (jint)LOWORD(lParam), (jint)HIWORD(lParam));
+        DBG_PRINT("*** WindowsWindow: WM_MOVE window %p, %d/%d\n", wnd, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
+        (*env)->CallVoidMethod(env, window, positionChangedID, JNI_FALSE, (jint)GET_X_LPARAM(lParam), (jint)GET_Y_LPARAM(lParam));
         useDefWindowProc = 1;
         break;
 
@@ -1041,13 +1041,47 @@ JNIEXPORT void JNICALL Java_jogamp_newt_driver_windows_WindowsDisplay_DispatchMe
 
 /*
  * Class:     jogamp_newt_driver_windows_WindowsScreen
+ * Method:    getOriginX0
+ * Signature: (I)I
+ */
+JNIEXPORT jint JNICALL Java_jogamp_newt_driver_windows_WindowsScreen_getOriginX0
+  (JNIEnv *env, jobject obj, jint scrn_idx)
+{
+    if( GetSystemMetrics( SM_CMONITORS) > 1) {
+        return (jint)GetSystemMetrics(SM_XVIRTUALSCREEN);
+    } else {
+        return 0;
+    }
+}
+
+/*
+ * Class:     jogamp_newt_driver_windows_WindowsScreen
+ * Method:    getOriginY0
+ * Signature: (I)I
+ */
+JNIEXPORT jint JNICALL Java_jogamp_newt_driver_windows_WindowsScreen_getOriginY0
+  (JNIEnv *env, jobject obj, jint scrn_idx)
+{
+    if( GetSystemMetrics( SM_CMONITORS ) > 1) {
+        return (jint)GetSystemMetrics(SM_YVIRTUALSCREEN);
+    } else {
+        return 0;
+    }
+}
+
+/*
+ * Class:     jogamp_newt_driver_windows_WindowsScreen
  * Method:    getWidthImpl
  * Signature: (I)I
  */
 JNIEXPORT jint JNICALL Java_jogamp_newt_driver_windows_WindowsScreen_getWidthImpl0
   (JNIEnv *env, jobject obj, jint scrn_idx)
 {
-    return (jint)GetSystemMetrics(SM_CXSCREEN);
+    if( GetSystemMetrics( SM_CMONITORS) > 1) {
+        return (jint)GetSystemMetrics(SM_CXVIRTUALSCREEN);
+    } else {
+        return (jint)GetSystemMetrics(SM_CXSCREEN);
+    }
 }
 
 /*
@@ -1058,7 +1092,11 @@ JNIEXPORT jint JNICALL Java_jogamp_newt_driver_windows_WindowsScreen_getWidthImp
 JNIEXPORT jint JNICALL Java_jogamp_newt_driver_windows_WindowsScreen_getHeightImpl0
   (JNIEnv *env, jobject obj, jint scrn_idx)
 {
-    return (jint)GetSystemMetrics(SM_CYSCREEN);
+    if( GetSystemMetrics( SM_CMONITORS ) > 1) {
+        return (jint)GetSystemMetrics(SM_CYVIRTUALSCREEN);
+    } else {
+        return (jint)GetSystemMetrics(SM_CYSCREEN);
+    }
 }
 
 static int NewtScreen_RotationNativeCCW2NewtCCW(JNIEnv *env, int native) {
@@ -1310,9 +1348,6 @@ static void NewtWindow_setVisiblePosSize(HWND hwnd, BOOL atop, BOOL visible,
     } else {
         flags = SWP_NOACTIVATE | SWP_NOZORDER;
     }
-    if(0>x || 0>y) {
-        flags |= SWP_NOMOVE;
-    }
     if(0>=width || 0>=height ) {
         flags |= SWP_NOSIZE;
     }