Move each screen's root-window pointer into ScreenRec.

 Backported from X.org:

 commit e7fae9ecc42ab5e73b89117722dbf4117d928f9a
 Author: Jamey Sharp <jamey@minilop.net>
 Date:   Sat May 22 00:26:28 2010 -0700

    Move each screen's root-window pointer into ScreenRec.

    Many references to the WindowTable array already had the corresponding
    screen pointer handy, which meant they usually looked like
    "WindowTable[pScreen->myNum]". Adding a field to ScreenRec instead of
    keeping this information in a parallel array simplifies those
    expressions, and eliminates a MAXSCREENS-sized array.

    Since dix uses this data, a screen private entry isn't appropriate.

    xf86-video-dummy currently uses WindowTable, so it needs to be updated
    to reflect this change.

    Signed-off-by: Jamey Sharp <jamey@minilop.net>
    Reviewed-by: Tiago Vignatti <tiago.vignatti@nokia.com>
    Tested-by: Tiago Vignatti <tiago.vignatti@nokia.com> (i686 GNU/Linux)

 Backport to nx-libs: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

16 files changed, 134 insertions, 130 deletions

diff --git a/nx-X11/programs/Xserver/hw/nxagent/Clipboard.c b/nx-X11/programs/Xserver/hw/nxagent/Clipboard.c
index f3656d2c0..a0dfbf602 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Clipboard.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Clipboard.c
@@ -22,6 +22,7 @@
 #include "Xatom.h"
 #include "selection.h"
 #include "windowstr.h"
+#include "scrnintstr.h"
 
 #include "Windows.h"
 #include "Atoms.h"
@@ -255,7 +256,7 @@ void nxagentClearSelection(XEvent *X)
                              NullGrab);
     }
 
-    CurrentSelections[i].window = WindowTable[0]->drawable.id;
+    CurrentSelections[i].window = screenInfo.screens[0]->root->drawable.id;
     CurrentSelections[i].client = NullClient;
 
     lastSelectionOwner[i].client = NULL;
@@ -424,7 +425,7 @@ FIXME: Do we need this?
          * Fictitious window.
          */
 
-        x.u.selectionRequest.requestor = WindowTable[0]->drawable.id;
+        x.u.selectionRequest.requestor = screenInfo.screens[0]->root->drawable.id;
 
         /*
          * Don't send the same window, some programs are
@@ -1502,13 +1503,13 @@ int nxagentInitClipboard(WindowPtr pWin)
 
   lastSelectionOwner[nxagentPrimarySelection].selection = XA_PRIMARY;
   lastSelectionOwner[nxagentPrimarySelection].client = NullClient;
-  lastSelectionOwner[nxagentPrimarySelection].window = WindowTable[0]->drawable.id;
+  lastSelectionOwner[nxagentPrimarySelection].window = screenInfo.screens[0]->root->drawable.id;
   lastSelectionOwner[nxagentPrimarySelection].windowPtr = NULL;
   lastSelectionOwner[nxagentPrimarySelection].lastTimeChanged = GetTimeInMillis();
 
   lastSelectionOwner[nxagentClipboardSelection].selection = nxagentClipboardAtom;
   lastSelectionOwner[nxagentClipboardSelection].client = NullClient;
-  lastSelectionOwner[nxagentClipboardSelection].window = WindowTable[0]->drawable.id;
+  lastSelectionOwner[nxagentClipboardSelection].window = screenInfo.screens[0]->root->drawable.id;
   lastSelectionOwner[nxagentClipboardSelection].windowPtr = NULL;
   lastSelectionOwner[nxagentClipboardSelection].lastTimeChanged = GetTimeInMillis();
 
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Composite.c b/nx-X11/programs/Xserver/hw/nxagent/Composite.c
index ae3cbb5a4..d6239d619 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Composite.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Composite.c
@@ -125,7 +125,7 @@ void nxagentRedirectDefaultWindows()
 
   for (i = 0; i < screenInfo.numScreens; i++)
   {
-    WindowPtr pWin = WindowTable[i];
+    WindowPtr pWin = screenInfo.screens[i]->root;
 
     ScreenPtr pScreen = pWin -> drawable.pScreen;
 
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Drawable.c b/nx-X11/programs/Xserver/hw/nxagent/Drawable.c
index 9dac8066a..377e119ab 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Drawable.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Drawable.c
@@ -3292,7 +3292,7 @@ void nxagentSendDeferredBackgroundExposures(void)
     fprintf(stderr, "nxagentSendDeferredBackgroundExposures: Going to send deferred exposures to the root window.\n");
     #endif
 
-    TraverseTree(WindowTable[0], nxagentClipAndSendClearExpose, (void *) nxagentDeferredBackgroundExposures);
+    TraverseTree(screenInfo.screens[0]->root, nxagentClipAndSendClearExpose, (void *) nxagentDeferredBackgroundExposures);
 
     RegionEmpty(nxagentDeferredBackgroundExposures);
   }
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Events.c b/nx-X11/programs/Xserver/hw/nxagent/Events.c
index 0a6540fa3..52b869f71 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Events.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Events.c
@@ -629,8 +629,8 @@ void nxagentShadowSwitchResizeMode(ScreenPtr pScreen)
   {
     nxagentShadowSetRatio(1.0, 1.0);
 
-    nxagentShadowCreateMainWindow(screenInfo.screens[DefaultScreen(nxagentDisplay)], WindowTable[0],
-                                      WindowTable[0] -> drawable.width, WindowTable[0] -> drawable.height);
+    nxagentShadowCreateMainWindow(screenInfo.screens[DefaultScreen(nxagentDisplay)], screenInfo.screens[0]->root,
+                                      screenInfo.screens[0]->root -> drawable.width, screenInfo.screens[0]->root -> drawable.height);
 
     sizeHints.max_width = nxagentOption(RootWidth);
     sizeHints.max_height = nxagentOption(RootHeight);
@@ -640,13 +640,13 @@ void nxagentShadowSwitchResizeMode(ScreenPtr pScreen)
   else
   {
     nxagentShadowSetRatio(nxagentOption(Width) * 1.0 /
-                              WindowTable[0] -> drawable.width, 
+                              screenInfo.screens[0]->root -> drawable.width,
                                   nxagentOption(Height) * 1.0 /
-                                      WindowTable[0] -> drawable.height);
+                                      screenInfo.screens[0]->root -> drawable.height);
 
     nxagentShadowCreateMainWindow(screenInfo.screens[DefaultScreen(nxagentDisplay)],
-                                      WindowTable[0], WindowTable[0] -> drawable.width,
-                                          WindowTable[0] -> drawable.height);
+                                      screenInfo.screens[0]->root, screenInfo.screens[0]->root -> drawable.width,
+                                          screenInfo.screens[0]->root -> drawable.height);
 
     sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
     sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
@@ -963,10 +963,10 @@ void nxagentDispatchEvents(PredicateFuncPtr predicate)
           case doDebugTree:
           {
             fprintf(stderr, "\n ========== nxagentRemoteWindowsTree ==========\n");
-            nxagentRemoteWindowsTree(nxagentWindow(WindowTable[0]), 0);
+            nxagentRemoteWindowsTree(nxagentWindow(screenInfo.screens[0]->root), 0);
 
             fprintf(stderr, "\n========== nxagentInternalWindowsTree ==========\n");
-            nxagentInternalWindowsTree(WindowTable[0], 0);
+            nxagentInternalWindowsTree(screenInfo.screens[0]->root, 0);
 
             break;
           }
@@ -1405,7 +1405,7 @@ FIXME: Don't enqueue the KeyRelease event if the key was
                   (X.xmotion.y_root < nxagentLastEnteredTopLevelWindow -> drawable.y + 4))
           {
             if (pWin && nxagentClientIsDialog(wClient(pWin)) == 0 &&
-                    nxagentLastEnteredTopLevelWindow -> parent == WindowTable[0] &&
+                    nxagentLastEnteredTopLevelWindow -> parent == screenInfo.screens[0]->root &&
                         nxagentLastEnteredTopLevelWindow -> overrideRedirect == False &&
                             X.xmotion.x_root > (nxagentLastEnteredTopLevelWindow -> drawable.x +
                                 (nxagentLastEnteredTopLevelWindow -> drawable.width >> 1) - 50) &&
@@ -1625,7 +1625,7 @@ FIXME: Don't enqueue the KeyRelease event if the key was
           if (pWin != NULL)
           {
             for (pTLWin = pWin;
-                     pTLWin -> parent != WindowTable[pTLWin -> drawable.pScreen -> myNum];
+                     pTLWin -> parent != pTLWin -> drawable.pScreen -> root;
                          pTLWin = pTLWin -> parent);
           }
 
@@ -2454,7 +2454,7 @@ FIXME: This can be maybe optimized by consuming the
     RegionValidate(&sum, &overlap);
 
     RegionIntersect(&sum, &sum,
-                         &WindowTable[pWin->drawable.pScreen->myNum]->winSize);
+                         &pWin->drawable.pScreen->root->winSize);
 
     #ifdef DEBUG
     fprintf(stderr, "nxagentHandleExposeEvent: Sending events for window id [%ld].\n",
@@ -3147,7 +3147,7 @@ int nxagentCheckWindowConfiguration(XConfigureEvent* X)
     fprintf(stderr, "nxagentCheckWindowConfiguration: Before restacking top level window [%p]\n",
                 (void *) nxagentWindowPtr(X -> window));
 
-    for (pSib = WindowTable[0] -> firstChild; pSib; pSib = pSib -> nextSib)
+    for (pSib = screenInfo.screens[0]->root -> firstChild; pSib; pSib = pSib -> nextSib)
     {
       fprintf(stderr, "nxagentCheckWindowConfiguration: Top level window: [%p].\n",
                   (void *) pSib);
@@ -3431,7 +3431,7 @@ int nxagentHandleConfigureNotify(XEvent* X)
           nxagentUpdateViewportFrame(0, 0, nxagentOption(RootWidth),
                                          nxagentOption(RootHeight));
 
-          XMoveWindow(nxagentDisplay, nxagentWindow(WindowTable[pScreen -> myNum]),
+          XMoveWindow(nxagentDisplay, nxagentWindow(pScreen->root),
                           nxagentOption(RootX), nxagentOption(RootY));
         }
 
@@ -4245,7 +4245,7 @@ void nxagentForwardRemoteExpose(void)
     fprintf(stderr, "nxagentForwardRemoteExpose: Going to forward events.\n");
     #endif
 
-    TraverseTree(WindowTable[0], nxagentClipAndSendExpose, (void *)nxagentRemoteExposeRegion);
+    TraverseTree(screenInfo.screens[0]->root, nxagentClipAndSendExpose, (void *)nxagentRemoteExposeRegion);
 
     /*
      * Now this region should be empty.
@@ -4420,7 +4420,7 @@ int nxagentHandleRRScreenChangeNotify(XEvent *X)
   nxagentResizeScreen(screenInfo.screens[DefaultScreen(nxagentDisplay)], Xr -> width, Xr -> height,
                           Xr -> mwidth, Xr -> mheight);
 
-  nxagentShadowCreateMainWindow(screenInfo.screens[DefaultScreen(nxagentDisplay)], WindowTable[0],
+  nxagentShadowCreateMainWindow(screenInfo.screens[DefaultScreen(nxagentDisplay)], screenInfo.screens[0]->root,
                                 Xr -> width, Xr -> height);
 
   nxagentShadowSetWindowsSize();
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXdispatch.c b/nx-X11/programs/Xserver/hw/nxagent/NXdispatch.c
index adeaff870..5e89e67bd 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXdispatch.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXdispatch.c
@@ -344,13 +344,13 @@ InitSelections()
 
       CurrentSelections[0].selection = XA_PRIMARY;
       CurrentSelections[0].lastTimeChanged = ClientTimeToServerTime(0);
-      CurrentSelections[0].window = WindowTable[0]->drawable.id;
+      CurrentSelections[0].window = screenInfo.screens[0]->root->drawable.id;
       CurrentSelections[0].pWin = NULL;
       CurrentSelections[0].client = NullClient;
 
       CurrentSelections[1].selection = MakeAtom("CLIPBOARD", 9, 1);
       CurrentSelections[1].lastTimeChanged = ClientTimeToServerTime(0);
-      CurrentSelections[1].window = WindowTable[0]->drawable.id;
+      CurrentSelections[1].window = screenInfo.screens[0]->root->drawable.id;
       CurrentSelections[1].pWin = NULL;
       CurrentSelections[1].client = NullClient;
     }
@@ -374,8 +374,8 @@ FlushClientCaches(XID id)
 	{
             if (client->lastDrawableID == id)
 	    {
-		client->lastDrawableID = WindowTable[0]->drawable.id;
-		client->lastDrawable = (DrawablePtr)WindowTable[0];
+		client->lastDrawableID = screenInfo.screens[0]->root->drawable.id;
+		client->lastDrawable = (DrawablePtr)screenInfo.screens[0]->root;
 	    }
             else if (client->lastGCID == id)
 	    {
@@ -1161,7 +1161,7 @@ GetGeometry(register ClientPtr client, xGetGeometryReply *rep)
     rep->type = X_Reply;
     rep->length = 0;
     rep->sequenceNumber = client->sequence;
-    rep->root = WindowTable[pDraw->pScreen->myNum]->drawable.id;
+    rep->root = pDraw->pScreen->root->drawable.id;
     rep->depth = pDraw->depth;
     rep->width = pDraw->width;
     rep->height = pDraw->height;
@@ -1221,7 +1221,7 @@ ProcQueryTree(register ClientPtr client)
         return(BadWindow);
     memset(&reply, 0, sizeof(xQueryTreeReply));
     reply.type = X_Reply;
-    reply.root = WindowTable[pWin->drawable.pScreen->myNum]->drawable.id;
+    reply.root = pWin->drawable.pScreen->root->drawable.id;
     reply.sequenceNumber = client->sequence;
     if (pWin->parent)
 	reply.parent = pWin->parent->drawable.id;
@@ -4319,8 +4319,8 @@ void InitClient(ClientPtr client, int i, void * ospriv)
     if (i)
     {
 	client->closeDownMode = DestroyAll;
-	client->lastDrawable = (DrawablePtr)WindowTable[0];
-	client->lastDrawableID = WindowTable[0]->drawable.id;
+	client->lastDrawable = (DrawablePtr)screenInfo.screens[0]->root;
+	client->lastDrawableID = screenInfo.screens[0]->root->drawable.id;
     }
     else
     {
@@ -4563,8 +4563,8 @@ SendConnSetup(register ClientPtr client, char *reason)
 	register unsigned int j;
 	register xDepth *pDepth;
 
-        root->currentInputMask = WindowTable[i]->eventMask |
-			         wOtherEventMasks (WindowTable[i]);
+        root->currentInputMask = screenInfo.screens[i]->root->eventMask |
+			         wOtherEventMasks (screenInfo.screens[i]->root);
 	pDepth = (xDepth *)(root + 1);
 	for (j = 0; j < root->nDepths; j++)
 	{
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXevents.c b/nx-X11/programs/Xserver/hw/nxagent/NXevents.c
index 89c5c0b19..3142233ac 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXevents.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXevents.c
@@ -162,7 +162,6 @@ extern Bool XkbFilterEvents(ClientPtr, int, xEvent *);
 #endif
 
 #ifdef XEVIE
-extern WindowPtr *WindowTable;
 extern int       xevieFlag;
 extern int       xevieClientIndex;
 extern DeviceIntPtr     xeviemouse;
@@ -465,9 +464,10 @@ XineramaCheckPhysLimits(
 static Bool
 XineramaSetWindowPntrs(WindowPtr pWin)
 {
-    if(pWin == WindowTable[0]) {
-	    memcpy(sprite.windows, WindowTable, 
-				PanoramiXNumScreens*sizeof(WindowPtr));
+    if(pWin == screenInfo.screens[0]->root) {
+	int i;
+	for (i = 0; i < PanoramiXNumScreens; i++)
+	    sprite.windows[i] = screenInfo.screens[i]->root;
     } else {
 	PanoramiXRes *win;
 	int i;
@@ -692,7 +692,7 @@ XineramaConfineCursorToWindow(WindowPtr pWin, Bool generateEvents)
 	   sprite.hotShape = NullRegion;
 	
 	sprite.confined = FALSE;
-	sprite.confineWin = (pWin == WindowTable[0]) ? NullWindow : pWin;
+	sprite.confineWin = (pWin == screenInfo.screens[0]->root) ? NullWindow : pWin;
 
 	XineramaCheckPhysLimits(sprite.current, generateEvents);
     }
@@ -909,7 +909,7 @@ CheckVirtualMotion(
 	    qe->event->u.keyButtonPointer.rootY = sprite.hot.y;
 	}
     }
-    ROOT = WindowTable[sprite.hot.pScreen->myNum];
+    ROOT = sprite.hot.pScreen->root;
 }
 
 static void
@@ -1109,7 +1109,7 @@ EnqueueEvent(xEvent *xE, DeviceIntPtr device, int count)
 	 */
 	if (xE->u.u.type == MotionNotify)
 	    XE_KBPTR.root =
-		WindowTable[sprite.hotPhys.pScreen->myNum]->drawable.id;
+		sprite.hotPhys.pScreen->root->drawable.id;
 	eventinfo.events = xE;
 	eventinfo.count = count;
 	CallCallbacks(&DeviceEventCallback, (void *)&eventinfo);
@@ -1272,7 +1272,7 @@ playmore:
 	ConfineCursorToWindow(grab->confineTo, TRUE, TRUE);
     }
     else
-	ConfineCursorToWindow(WindowTable[sprite.hotPhys.pScreen->myNum],
+	ConfineCursorToWindow(sprite.hotPhys.pScreen->root,
 			      TRUE, FALSE);
     PostNewCursor();
 }
@@ -1290,7 +1290,7 @@ ScreenRestructured (ScreenPtr pScreen)
 	ConfineCursorToWindow(grab->confineTo, TRUE, TRUE);
     }
     else
-	ConfineCursorToWindow(WindowTable[sprite.hotPhys.pScreen->myNum],
+	ConfineCursorToWindow(sprite.hotPhys.pScreen->root,
 			      TRUE, FALSE);
 }
 #endif
@@ -2219,7 +2219,7 @@ CheckMotion(xEvent *xE)
 	if (sprite.hot.pScreen != sprite.hotPhys.pScreen)
 	{
 	    sprite.hot.pScreen = sprite.hotPhys.pScreen;
-	    ROOT = WindowTable[sprite.hot.pScreen->myNum];
+	    ROOT = sprite.hot.pScreen->root;
 	}
 #ifdef XEVIE
 	xeviehot.x =
@@ -2307,9 +2307,9 @@ WindowsRestructured()
 
 #ifdef PANORAMIX
 /* This was added to support reconfiguration under Xdmx.  The problem is
- * that if the 0th screen (i.e., WindowTable[0]) is moved to an origin
- * other than 0,0, the information in the private sprite structure must
- * be updated accordingly, or XYToWindow (and other routines) will not
+ * that if the 0th screen (i.e., screenInfo.screens[0]->root) is moved to
+ * an origin other than 0,0, the information in the private sprite structure
+ * must be updated accordingly, or XYToWindow (and other routines) will not
  * compute correctly. */
 void ReinitializeRootWindow(WindowPtr win, int xoff, int yoff)
 {
@@ -2339,7 +2339,7 @@ void ReinitializeRootWindow(WindowPtr win, int xoff, int yoff)
 	    sprite.hotPhys.x = sprite.hotPhys.y = 0;
 	ConfineCursorToWindow(grab->confineTo, TRUE, TRUE);
     } else
-	ConfineCursorToWindow(WindowTable[sprite.hotPhys.pScreen->myNum],
+	ConfineCursorToWindow(sprite.hotPhys.pScreen->root,
 			      TRUE, FALSE);
 }
 #endif
@@ -2435,7 +2435,7 @@ NewCurrentScreen(ScreenPtr newScreen, int x, int y)
 	    if(sprite.confineWin)
 		XineramaConfineCursorToWindow(sprite.confineWin, TRUE);
 	    else
-		XineramaConfineCursorToWindow(WindowTable[0], TRUE);
+		XineramaConfineCursorToWindow(screenInfo.screens[0]->root, TRUE);
 	    /* if the pointer wasn't confined, the DDX won't get 
 	       told of the pointer warp so we reposition it here */
 	    if(!syncEvents.playingEvents)
@@ -2448,7 +2448,7 @@ NewCurrentScreen(ScreenPtr newScreen, int x, int y)
     } else 
 #endif
     if (newScreen != sprite.hotPhys.pScreen)
-	ConfineCursorToWindow(WindowTable[newScreen->myNum], TRUE, FALSE);
+	ConfineCursorToWindow(newScreen->root, TRUE, FALSE);
 }
 
 #ifdef PANORAMIX
@@ -2520,7 +2520,7 @@ XineramaWarpPointer(ClientPtr client)
 
 	winX = source->drawable.x;
 	winY = source->drawable.y;
-	if(source == WindowTable[0]) {
+	if(source == screenInfo.screens[0]->root) {
 	    winX -= panoramiXdataPtr[0].x;
 	    winY -= panoramiXdataPtr[0].y;
 	}
@@ -2536,7 +2536,7 @@ XineramaWarpPointer(ClientPtr client)
     if (dest) {
 	x = dest->drawable.x;
 	y = dest->drawable.y;
-	if(dest == WindowTable[0]) {
+	if(dest == screenInfo.screens[0]->root) {
 	    x -= panoramiXdataPtr[0].x;
 	    y -= panoramiXdataPtr[0].y;
 	}
@@ -3206,7 +3206,7 @@ ProcessPointerEvent (register xEvent *xE, register DeviceIntPtr mouse, int count
 	    /* see comment in EnqueueEvents regarding the next three lines */
 	    if (xE->u.u.type == MotionNotify)
 		XE_KBPTR.root =
-		    WindowTable[sprite.hotPhys.pScreen->myNum]->drawable.id;
+		    sprite.hotPhys.pScreen->root->drawable.id;
 	    eventinfo.events = xE;
 	    eventinfo.count = count;
 	    CallCallbacks(&DeviceEventCallback, (void *)&eventinfo);
@@ -3818,11 +3818,11 @@ DoFocusEvents(DeviceIntPtr dev, WindowPtr fromWin, WindowPtr toWin, int mode)
 	    /* Notify all the roots */
 #ifdef PANORAMIX
  	    if ( !noPanoramiXExtension )
-	        FocusEvent(dev, FocusOut, mode, out, WindowTable[0]);
+	        FocusEvent(dev, FocusOut, mode, out, screenInfo.screens[0]->root);
 	    else 
 #endif
 	        for (i=0; i<screenInfo.numScreens; i++)
-	            FocusEvent(dev, FocusOut, mode, out, WindowTable[i]);
+	            FocusEvent(dev, FocusOut, mode, out, screenInfo.screens[i]->root);
 	}
 	else
 	{
@@ -3837,11 +3837,11 @@ DoFocusEvents(DeviceIntPtr dev, WindowPtr fromWin, WindowPtr toWin, int mode)
 	/* Notify all the roots */
 #ifdef PANORAMIX
 	if ( !noPanoramiXExtension )
-	    FocusEvent(dev, FocusIn, mode, in, WindowTable[0]);
+	    FocusEvent(dev, FocusIn, mode, in, screenInfo.screens[0]->root);
 	else 
 #endif
 	    for (i=0; i<screenInfo.numScreens; i++)
-	        FocusEvent(dev, FocusIn, mode, in, WindowTable[i]);
+	        FocusEvent(dev, FocusIn, mode, in, screenInfo.screens[i]->root);
 	if (toWin == PointerRootWin)
 	    (void)FocusInEvents(dev, ROOT, sprite.win, NullWindow, mode,
 				NotifyPointer, TRUE);
@@ -3855,11 +3855,11 @@ DoFocusEvents(DeviceIntPtr dev, WindowPtr fromWin, WindowPtr toWin, int mode)
 			       TRUE);
 #ifdef PANORAMIX
  	    if ( !noPanoramiXExtension )
-	        FocusEvent(dev, FocusOut, mode, out, WindowTable[0]);
+	        FocusEvent(dev, FocusOut, mode, out, screenInfo.screens[0]->root);
 	    else 
 #endif
 	        for (i=0; i<screenInfo.numScreens; i++)
-	            FocusEvent(dev, FocusOut, mode, out, WindowTable[i]);
+	            FocusEvent(dev, FocusOut, mode, out, screenInfo.screens[i]->root);
 	    if (toWin->parent != NullWindow)
 	      (void)FocusInEvents(dev, ROOT, toWin, toWin, mode,
 				  NotifyNonlinearVirtual, TRUE);
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c b/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c
index ad75b43f8..a52a5200a 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c
@@ -504,7 +504,7 @@ miSendExposures(pWin, pRgn, dx, dy)
 	if(!pWin->parent) {
 	    x = panoramiXdataPtr[scrnum].x;
 	    y = panoramiXdataPtr[scrnum].y;
-	    pWin = WindowTable[0];
+	    pWin = screenInfo.screens[0]->root;
 	    realWin = pWin->drawable.id;
 	} else if (scrnum) {
 	    PanoramiXRes *win;
@@ -788,7 +788,7 @@ int what;
     gcmask |= GCFunction | GCClipMask;
 
     i = pScreen->myNum;
-    pRoot = WindowTable[i];
+    pRoot = screenInfo.screens[i]->root;
 
     pBgWin = pWin;
     if (what == PW_BORDER)
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXrender.c b/nx-X11/programs/Xserver/hw/nxagent/NXrender.c
index 1999c33b0..238e5a39c 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXrender.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXrender.c
@@ -3204,7 +3204,7 @@ PanoramiXRenderCreatePicture (ClientPtr client)
     newPict->info[0].id = stuff->pid;
     
     if (refDraw->type == XRT_WINDOW &&
-	stuff->drawable == WindowTable[0]->drawable.id)
+	stuff->drawable == screenInfo.screens[0]->root->drawable.id)
     {
 	newPict->u.pict.root = TRUE;
     }
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXresource.c b/nx-X11/programs/Xserver/hw/nxagent/NXresource.c
index 39a1992de..226d20f34 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXresource.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXresource.c
@@ -699,8 +699,8 @@ FreeResource(XID id, RESTYPE skipDeleteFuncType)
         }
 	if(clients[cid] && (id == clients[cid]->lastDrawableID))
 	{
-	    clients[cid]->lastDrawable = (DrawablePtr)WindowTable[0];
-	    clients[cid]->lastDrawableID = WindowTable[0]->drawable.id;
+	    clients[cid]->lastDrawable = (DrawablePtr)screenInfo.screens[0]->root;
+	    clients[cid]->lastDrawableID = screenInfo.screens[0]->root->drawable.id;
 	}
     }
     if (!gotOne)
@@ -740,8 +740,8 @@ FreeResourceByType(XID id, RESTYPE type, Bool skipFree)
         }
 	if(clients[cid] && (id == clients[cid]->lastDrawableID))
 	{
-	    clients[cid]->lastDrawable = (DrawablePtr)WindowTable[0];
-	    clients[cid]->lastDrawableID = WindowTable[0]->drawable.id;
+	    clients[cid]->lastDrawable = (DrawablePtr)screenInfo.screens[0]->root;
+	    clients[cid]->lastDrawableID = screenInfo.screens[0]->root->drawable.id;
 	}
     }
 }
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c b/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c
index 70c378b9e..5daa65443 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c
@@ -240,7 +240,7 @@ PrintWindowTree()
     for (i=0; i<screenInfo.numScreens; i++)
     {
 	ErrorF( "WINDOW %d\n", i);
-	pWin = WindowTable[i];
+	pWin = screenInfo.screens[i]->root;
 	RegionPrint(&pWin->clipList);
 	p1 = pWin->firstChild;
 	PrintChildren(p1, 4);
@@ -286,7 +286,7 @@ TraverseTree(register WindowPtr pWin, VisitWindowProcPtr func, void * data)
 int
 WalkTree(ScreenPtr pScreen, VisitWindowProcPtr func, void * data)
 {
-    return(TraverseTree(WindowTable[pScreen->myNum], func, data));
+    return(TraverseTree(pScreen->root, func, data));
 }
 
 /* hack for forcing backing store on all windows */
@@ -457,7 +457,9 @@ CreateRootWindow(ScreenPtr pScreen)
     savedScreenInfo[pScreen->myNum].ExternalScreenSaver = NULL;
     screenIsSaved = SCREEN_SAVER_OFF;
 
-    WindowTable[pScreen->myNum] = pWin;
+    pScreen->root = pWin;
+
+    pScreen->root = pWin;
 
     pWin->drawable.pScreen = pScreen;
     pWin->drawable.type = DRAWABLE_WINDOW;
@@ -583,11 +585,11 @@ InitRootWindow(WindowPtr pWin)
 
     /*
      * A root window is created for each screen by main
-     * and the pointer is saved in WindowTable as in the
-     * following snippet:
+     * and the pointer is saved in screenInfo.screens as
+     * in the following snippet:
      *
      * for (i = 0; i < screenInfo.numScreens; i++)
-     *          InitRootWindow(WindowTable[i]);
+     *          InitRootWindow(screenInfo.screens[i]->root);
      *
      * Our root window on the real display was already
      * created at the time the screen was opened, so it
@@ -1583,7 +1585,7 @@ ChangeWindowAttributes(register WindowPtr pWin, Mask vmask, XID *vlist, ClientPt
 	     */
 	    if ( cursorID == None)
 	    {
-		if (pWin == WindowTable[pWin->drawable.pScreen->myNum])
+		if (pWin == pWin->drawable.pScreen->root)
 		    pCursor = rootCursor;
 		else
 		    pCursor = (CursorPtr) None;
@@ -2863,7 +2865,7 @@ ReparentWindow(register WindowPtr pWin, register WindowPtr pParent,
     pWin->parent = pParent;
     pPrev = RealChildHead(pParent);
 
-    if (pWin->parent == WindowTable[0])
+    if (pWin->parent == screenInfo.screens[0]->root)
     {
       nxagentSetTopLevelEventMask(pWin);
     }
@@ -3442,7 +3444,7 @@ HandleSaveSet(register ClientPtr client)
 	pWin = SaveSetWindow(client->saveSet[j]);
 #ifdef XFIXES
 	if (SaveSetToRoot(client->saveSet[j]))
-	    pParent = WindowTable[pWin->drawable.pScreen->myNum];
+	    pParent = pWin->drawable.pScreen->root;
 	else
 #endif
 	{
@@ -3744,9 +3746,9 @@ TileScreenSaver(int i, int kind)
     attri = 0;
     switch (kind) {
     case SCREEN_IS_TILED:
-	switch (WindowTable[i]->backgroundState) {
+	switch (screenInfo.screens[i]->root->backgroundState) {
 	case BackgroundPixel:
-	    attributes[attri++] = WindowTable[i]->background.pixel;
+	    attributes[attri++] = screenInfo.screens[i]->root->background.pixel;
 	    mask |= CWBackPixel;
 	    break;
 	case BackgroundPixmap:
@@ -3758,7 +3760,7 @@ TileScreenSaver(int i, int kind)
 	}
 	break;
     case SCREEN_IS_BLACK:
-	attributes[attri++] = WindowTable[i]->drawable.pScreen->blackPixel;
+	attributes[attri++] = screenInfo.screens[i]->root->drawable.pScreen->blackPixel;
 	mask |= CWBackPixel;
 	break;
     }
@@ -3806,12 +3808,12 @@ TileScreenSaver(int i, int kind)
 
     pWin = savedScreenInfo[i].pWindow =
 	 CreateWindow(savedScreenInfo[i].wid,
-	      WindowTable[i],
+	      screenInfo.screens[i]->root,
 	      -RANDOM_WIDTH, -RANDOM_WIDTH,
 	      (unsigned short)screenInfo.screens[i]->width + RANDOM_WIDTH,
 	      (unsigned short)screenInfo.screens[i]->height + RANDOM_WIDTH,
 	      0, InputOutput, mask, attributes, 0, serverClient,
-	      wVisual (WindowTable[i]), &result);
+	      wVisual (screenInfo.screens[i]->root), &result);
 
     if (cursor)
 	FreeResource (cursorID, RT_NONE);
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Pixmap.c b/nx-X11/programs/Xserver/hw/nxagent/Pixmap.c
index c9f62b1fe..f429f1499 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Pixmap.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Pixmap.c
@@ -1449,7 +1449,7 @@ Bool nxagentFbOnShadowDisplay()
   XGCValues value;
   XImage *image;
   Visual *pVisual;
-  WindowPtr pWin = WindowTable[0];
+  WindowPtr pWin = screenInfo.screens[0]->root;
   unsigned int format;
   int depth, width, height, length;
   char *data = NULL;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Rootless.c b/nx-X11/programs/Xserver/hw/nxagent/Rootless.c
index a725e20e7..49877f9d7 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Rootless.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Rootless.c
@@ -20,6 +20,7 @@
 #include "../../include/window.h"
 #include "windowstr.h"
 #include "colormapst.h"
+#include "scrnintstr.h"
 #include "propertyst.h"
 
 #include "Agent.h"
@@ -242,7 +243,7 @@ Bool nxagentRootlessTreesMatch()
   Window *children_return;
   unsigned int nChildrenReturn;
   WindowPtr pW;
-  WindowPtr pTestWin = WindowTable[0] -> firstChild;
+  WindowPtr pTestWin = screenInfo.screens[0]->root -> firstChild;
   Bool treesMatch = True;
   Status result;
 
@@ -267,7 +268,7 @@ Bool nxagentRootlessTreesMatch()
       pW = nxagentRootlessTopLevelWindow(children_return[nChildrenReturn]);
     }
 
-    if (pW && pW != WindowTable[0])
+    if (pW && pW != screenInfo.screens[0]->root)
     {
       if (treesMatch && pTestWin && pTestWin == pW)
       {
@@ -316,7 +317,7 @@ void nxagentRootlessRestack(unsigned long children[], unsigned int nchildren)
       pWin = nxagentRootlessTopLevelWindow(children[i]);
     }
 
-    if (pWin && pWin != WindowTable[0])
+    if (pWin && pWin != screenInfo.screens[0]->root)
     {
       toplevel[ntoplevel++] = pWin;
     }
@@ -338,14 +339,14 @@ void nxagentRootlessRestack(unsigned long children[], unsigned int nchildren)
 
   fprintf(stderr, "nxagentRootlessRestack: Internal top level windows before restack:");
 
-  for (pWin = WindowTable[0] -> firstChild; pWin != NULL; pWin = pWin -> nextSib)
+  for (pWin = screenInfo.screens[0]->root -> firstChild; pWin != NULL; pWin = pWin -> nextSib)
   {
     fprintf(stderr, "[%p]\n", pWin);
   }
 
   #endif
 
-  pWin = WindowTable[0] -> firstChild;
+  pWin = screenInfo.screens[0]->root -> firstChild;
 
   values[1] = (XID) Above;
 
@@ -381,7 +382,7 @@ void nxagentRootlessRestack(unsigned long children[], unsigned int nchildren)
 
   fprintf(stderr, "nxagentRootlessRestack: Internal top level windows after restack:");
 
-  for (pWin = WindowTable[0] -> firstChild; pWin != NULL; pWin = pWin -> nextSib)
+  for (pWin = screenInfo.screens[0]->root -> firstChild; pWin != NULL; pWin = pWin -> nextSib)
   {
     fprintf(stderr, "[%p]\n", pWin);
   }
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Screen.c b/nx-X11/programs/Xserver/hw/nxagent/Screen.c
index 50d278ed7..a4b39a4fe 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Screen.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Screen.c
@@ -2116,7 +2116,7 @@ Bool nxagentCloseScreen(int index, ScreenPtr pScreen)
 
 static void nxagentSetRootClip (ScreenPtr pScreen, Bool enable)
 {
-    WindowPtr   pWin = WindowTable[pScreen->myNum];
+    WindowPtr   pWin = pScreen->root;
     WindowPtr   pChild;
     Bool        WasViewable = (Bool)(pWin->viewable);
     Bool        anyMarked = FALSE;
@@ -2409,21 +2409,21 @@ FIXME: We should try to restore the previously
   box.x2 = width;
   box.y2 = height;
 
-  WindowTable[pScreen -> myNum] -> drawable.width = width;
-  WindowTable[pScreen -> myNum] -> drawable.height = height;
-  WindowTable[pScreen -> myNum] -> drawable.x = 0;
-  WindowTable[pScreen -> myNum] -> drawable.y = 0;
+  pScreen->root -> drawable.width = width;
+  pScreen->root -> drawable.height = height;
+  pScreen->root -> drawable.x = 0;
+  pScreen->root -> drawable.y = 0;
 
-  RegionInit(&WindowTable[pScreen -> myNum] -> borderSize, &box, 1);
-  RegionInit(&WindowTable[pScreen -> myNum] -> winSize, &box, 1);
-  RegionInit(&WindowTable[pScreen -> myNum] -> clipList, &box, 1);
-  RegionInit(&WindowTable[pScreen -> myNum] -> borderClip, &box, 1);
+  RegionInit(&pScreen->root -> borderSize, &box, 1);
+  RegionInit(&pScreen->root -> winSize, &box, 1);
+  RegionInit(&pScreen->root -> clipList, &box, 1);
+  RegionInit(&pScreen->root -> borderClip, &box, 1);
 
-  (*pScreen -> PositionWindow)(WindowTable[pScreen -> myNum], 0, 0);
+  (*pScreen -> PositionWindow)(pScreen->root, 0, 0);
 
   nxagentSetRootClip(pScreen, 1);
 
-  XMoveWindow(nxagentDisplay, nxagentWindow(WindowTable[0]),
+  XMoveWindow(nxagentDisplay, nxagentWindow(screenInfo.screens[0]->root),
                   nxagentOption(RootX), nxagentOption(RootY));
 
   nxagentMoveViewport(pScreen, 0, 0);
@@ -3522,7 +3522,7 @@ FIXME: The port information is not used at the moment and produces a
       {
         mcop_local_atom = MakeAtom(mcop_atom, strlen(mcop_atom), 1);
 
-        ChangeWindowProperty(WindowTable[pScreen->myNum],
+        ChangeWindowProperty(pScreen->root,
                              mcop_local_atom,
                              XA_STRING,
                              iReturnFormat, PropModeReplace,
@@ -3667,9 +3667,9 @@ int nxagentChangeScreenConfig(int screen, int width, int height, int mmWidth, in
   int          r;
 
   #ifdef TEST
-  fprintf(stderr, "nxagentChangeScreenConfig: WindowTable[%d] is %p\n", screen, WindowTable[screen]);
+  fprintf(stderr, "nxagentChangeScreenConfig: screenInfo.screens[%d]->root is %p\n", screen, screenInfo.screens[screen]);
   #endif
-  if (WindowTable[screen] == NULL)
+  if (screenInfo.screens[screen]->root == NULL)
   {
     return 0;
   }
@@ -3692,7 +3692,7 @@ int nxagentChangeScreenConfig(int screen, int width, int height, int mmWidth, in
     return 0;
   }
 
-  pScreen = WindowTable[screen] -> drawable.pScreen;
+  pScreen = screenInfo.screens[screen] -> root -> drawable.pScreen;
 
   #ifdef TEST
   fprintf(stderr, "nxagentChangeScreenConfig: Changing config to %dx%d.\n", width, height);
@@ -4124,7 +4124,7 @@ void nxagentSaveAreas(PixmapPtr pPixmap, RegionPtr prgnSave, int xorg, int yorg,
 
   values.subwindow_mode = IncludeInferiors;
 
-  gc = XCreateGC(nxagentDisplay, nxagentWindow(WindowTable[0]), GCSubwindowMode, &values);
+  gc = XCreateGC(nxagentDisplay, nxagentWindow(screenInfo.screens[0]->root), GCSubwindowMode, &values);
 
   /*
    * Initialize to the corrupted region.
@@ -4234,7 +4234,7 @@ void nxagentRestoreAreas(PixmapPtr pPixmap, RegionPtr prgnRestore, int xorg,
    */
 
   RegionIntersect(prgnRestore, prgnRestore,
-                       &WindowTable[pWin -> drawable.pScreen -> myNum] -> winSize);
+                       &pWin -> drawable.pScreen -> root -> winSize);
 
   pBackingStore = (miBSWindowPtr) pWin -> backStorage;
 
@@ -4245,7 +4245,7 @@ void nxagentRestoreAreas(PixmapPtr pPixmap, RegionPtr prgnRestore, int xorg,
 
   values.subwindow_mode = ClipByChildren;
 
-  gc = XCreateGC(nxagentDisplay, nxagentWindow(WindowTable[0]), GCSubwindowMode, &values);
+  gc = XCreateGC(nxagentDisplay, nxagentWindow(screenInfo.screens[0]->root), GCSubwindowMode, &values);
 
   /*
    * Translate the reference point to the origin of the window.
@@ -4406,7 +4406,7 @@ void nxagentShadowAdaptToRatio(void)
   nxagentShadowSetRatio(nxagentOption(Width) * 1.0 / nxagentShadowWidth,
                             nxagentOption(Height) * 1.0 / nxagentShadowHeight);
 
-  nxagentShadowCreateMainWindow(pScreen, WindowTable[0], nxagentShadowWidth, nxagentShadowHeight);
+  nxagentShadowCreateMainWindow(pScreen, screenInfo.screens[0]->root, nxagentShadowWidth, nxagentShadowHeight);
 
   sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
   sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
@@ -4456,7 +4456,7 @@ void nxagentShowPixmap(PixmapPtr pPixmap, int x, int y, int width, int height)
   XlibGC gc;
   XGCValues value;
   XImage *image;
-  WindowPtr pWin = WindowTable[0];
+  WindowPtr pWin = screenInfo.screens[0]->root;
   unsigned int format;
   int depth, pixmapWidth, pixmapHeight, length;
   char *data;
@@ -4668,7 +4668,7 @@ FIXME
   value.fill_style = FillSolid;
   value.function = GXcopy;
 
-  gc = XCreateGC(shadow, nxagentWindow(WindowTable[0]), GCBackground |
+  gc = XCreateGC(shadow, nxagentWindow(screenInfo.screens[0]->root), GCBackground |
                      GCForeground | GCFillStyle | GCPlaneMask | GCFunction, &value);
 
   NXCleanImage(image);
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Splash.c b/nx-X11/programs/Xserver/hw/nxagent/Splash.c
index a069b3e23..35cb7cea9 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Splash.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Splash.c
@@ -396,15 +396,15 @@ void nxagentRemoveSplashWindow(WindowPtr pWin)
     XDestroyWindow(nxagentDisplay, nxagentSplashWindow);
 
     nxagentSplashWindow = None;
-    nxagentRefreshWindows(WindowTable[0]);
+    nxagentRefreshWindows(screenInfo.screens[0]->root);
 
     #ifdef TEST
     fprintf(stderr, "nxagentRemoveSplashWindow: setting the ownership of %s (%d) on window 0x%lx\n",
-                "NX_CUT_BUFFER_SERVER", (int)serverCutProperty, nxagentWindow(WindowTable[0]));
+                "NX_CUT_BUFFER_SERVER", (int)serverCutProperty, nxagentWindow(screenInfo.screens[0]->root));
     #endif
 
     XSetSelectionOwner(nxagentDisplay, serverCutProperty,
-                           nxagentWindow(WindowTable[0]), CurrentTime);
+                           nxagentWindow(screenInfo.screens[0]->root), CurrentTime);
   }
 
   if (nxagentPixmapLogo)
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Window.c b/nx-X11/programs/Xserver/hw/nxagent/Window.c
index b553627dd..514ee5140 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Window.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Window.c
@@ -196,7 +196,7 @@ static Bool nxagentCheckWindowIntegrity(WindowPtr pWin);
 
 WindowPtr nxagentGetWindowFromID(Window id)
 {
-  WindowPtr pWin = WindowTable[0];
+  WindowPtr pWin = screenInfo.screens[0]->root;
 
   while (pWin && nxagentWindowPriv(pWin))
   {
@@ -508,7 +508,7 @@ FIXME: Do all the windows for which nxagentWindowTopLevel(pWin)
 
 Bool nxagentSomeWindowsAreMapped()
 {
-  WindowPtr pWin = WindowTable[0] -> firstChild;
+  WindowPtr pWin = screenInfo.screens[0]->root -> firstChild;
 
   while (pWin)
   {
@@ -884,7 +884,7 @@ void nxagentSwitchAllScreens(ScreenPtr pScreen, Bool switchOn)
 
       nxagentUpdateViewportFrame(0, 0, nxagentOption(RootWidth), nxagentOption(RootHeight));
 
-      XMoveWindow(nxagentDisplay, nxagentWindow(WindowTable[pScreen -> myNum]),
+      XMoveWindow(nxagentDisplay, nxagentWindow(pScreen->root),
                       nxagentOption(RootX), nxagentOption(RootY));
 
       /*
@@ -995,7 +995,7 @@ void nxagentSwitchAllScreens(ScreenPtr pScreen, Bool switchOn)
 
     nxagentUpdateViewportFrame(0, 0, nxagentOption(Width), nxagentOption(Height));
 
-    XMoveWindow(nxagentDisplay, nxagentWindow(WindowTable[pScreen -> myNum]), 0, 0);
+    XMoveWindow(nxagentDisplay, nxagentWindow(pScreen->root), 0, 0);
     XMapWindow(nxagentDisplay, w);
 
     nxagentChangeOption(RootX, 0);
@@ -1156,11 +1156,11 @@ void nxagentMoveViewport(ScreenPtr pScreen, int hShift, int vShift)
                         -nxagentOption(RootY) + nxagentOption(Height));
 
     fprintf(stderr, "nxagentMoveViewport: Root geometry x=[%d] y=[%d]\n",
-                WindowTable[pScreen -> myNum] -> drawable.x,
-                    WindowTable[pScreen -> myNum] -> drawable.y );
+                pScreen->root -> drawable.x,
+                    pScreen->root -> drawable.y );
     #endif
 
-    XMoveWindow(nxagentDisplay, nxagentWindow(WindowTable[pScreen -> myNum]),
+    XMoveWindow(nxagentDisplay, nxagentWindow(pScreen->root),
                     nxagentOption(RootX), nxagentOption(RootY));
 
     if (nxagentOption(ClientOs) == ClientOsWinnt)
@@ -2437,7 +2437,7 @@ static int nxagentForceExposure(WindowPtr pWin, void * ptr)
 {
   RegionPtr exposedRgn;
   BoxRec Box;
-  WindowPtr pRoot = WindowTable[pWin->drawable.pScreen->myNum];
+  WindowPtr pRoot = pWin->drawable.pScreen->root;
 
   if (pWin -> drawable.class != InputOnly)
   {
@@ -2491,7 +2491,7 @@ void nxagentMapDefaultWindows()
 
   for (i = 0; i < screenInfo.numScreens; i++)
   {
-    WindowPtr pWin = WindowTable[i];
+    WindowPtr pWin = screenInfo.screens[i]->root;
 
     ScreenPtr pScreen = pWin -> drawable.pScreen;
 
@@ -2606,7 +2606,7 @@ Bool nxagentDisconnectAllWindows(void)
 
   for (i = 0; i < screenInfo.numScreens; i++)
   {
-    pWin = WindowTable[i];
+    pWin = screenInfo.screens[i]->root;
     nxagentTraverseWindow( pWin, nxagentDisconnectWindow, &succeded);
     nxagentDefaultWindows[i] = None;
   }
@@ -2684,16 +2684,16 @@ Bool nxagentReconnectAllWindows(void *p0)
   fprintf(stderr, "nxagentReconnectAllWindows\n");
   #endif
 
-  if (WindowTable[0] -> backgroundState == BackgroundPixmap &&
-          WindowTable[0] -> background.pixmap == NULL)
+  if (screenInfo.screens[0]->root -> backgroundState == BackgroundPixmap &&
+          screenInfo.screens[0]->root -> background.pixmap == NULL)
   {
     FatalError("nxagentReconnectAllWindows: correct the FIXME\n");
   }
 
   if (nxagentOption(Fullscreen))
   {
-    WindowTable[0] -> origin.x = nxagentOption(RootX);
-    WindowTable[0] -> origin.y = nxagentOption(RootY);
+    screenInfo.screens[0]->root -> origin.x = nxagentOption(RootX);
+    screenInfo.screens[0]->root -> origin.y = nxagentOption(RootY);
   }
 
   if (!nxagentLoopOverWindows(nxagentReconnectWindow))
@@ -2739,8 +2739,8 @@ Bool nxagentReconnectAllWindows(void *p0)
 
   if (nxagentOption(Fullscreen))
   {
-    WindowTable[0] -> origin.x = 0;
-    WindowTable[0] -> origin.y = 0;
+    screenInfo.screens[0]->root -> origin.x = 0;
+    screenInfo.screens[0]->root -> origin.y = 0;
   }
 
   #ifdef NXAGENT_RECONNECT_WINDOW_DEBUG
@@ -2751,7 +2751,7 @@ Bool nxagentReconnectAllWindows(void *p0)
 
   #endif
 
-  if (nxagentInitClipboard(WindowTable[0]) == -1)
+  if (nxagentInitClipboard(screenInfo.screens[0]->root) == -1)
   {
     #ifdef WARNING
     fprintf(stderr, "nxagentReconnectAllWindows: WARNING! Couldn't initialize the clipboard.\n");
@@ -2848,7 +2848,7 @@ static Bool nxagentLoopOverWindows(void (*pF)(void *, XID, void *))
 
   for (i = 0; i < screenInfo.numScreens; i++)
   {
-    pWin = WindowTable[i];
+    pWin = screenInfo.screens[i]->root;
     nxagentTraverseWindow(pWin, pF, &windowSuccess);
   }
 
@@ -2995,7 +2995,7 @@ FIXME: Do we need to set save unders attribute here?
    * if a client handles this.
    */
 
-  if (nxagentOption(Rootless) && (pWin != WindowTable[0]))
+  if (nxagentOption(Rootless) && (pWin != screenInfo.screens[0]->root))
   {
     if (nxagentWindowTopLevel(pWin))
     {
@@ -3196,7 +3196,7 @@ static void nxagentReconfigureWindow(void * param0, XID param1, void * data_buff
   nxagentShapeWindow(pWin);
 #endif
 
-  if (pWin != WindowTable[0])
+  if (pWin != screenInfo.screens[0]->root)
   {
     if (pWin->realized)
     {
@@ -3238,7 +3238,7 @@ Bool nxagentCheckIllegalRootMonitoring(WindowPtr pWin, Mask mask)
   Mask invalidMask = SubstructureRedirectMask | ResizeRedirectMask | ButtonPressMask;
 
   if (nxagentOption(Rootless) &&
-        pWin == WindowTable[0] &&
+        pWin == screenInfo.screens[0]->root &&
           (mask & invalidMask))
   {
     return True;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Windows.h b/nx-X11/programs/Xserver/hw/nxagent/Windows.h
index 3ca74ba8e..dedb60299 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Windows.h
+++ b/nx-X11/programs/Xserver/hw/nxagent/Windows.h
@@ -167,7 +167,7 @@ extern int nxagentWindowPrivateIndex;
 #define nxagentRefreshScreen() \
 do\
 {\
-  nxagentRefreshWindows(WindowTable[0]);\
+  nxagentRefreshWindows(screenInfo.screens[0]->root);\
 } while (0)
 
 WindowPtr nxagentWindowPtr(Window window);