@@ -, +, @@ 
 negative orAltitude packets
---
 dlls/winex11.drv/wintab.c |   39 +++++++++++++++++++++++++++++++++++----
 1 files changed, 35 insertions(+), 4 deletions(-)
--- a/dlls/winex11.drv/wintab.c	
+++ a/dlls/winex11.drv/wintab.c	
@@ -265,6 +265,7 @@ static int           proximity_in_type;
 static int           proximity_out_type;
 
 static HWND          hwndTabletDefault;
+static HWND          gActiveOwner = NULL;
 static WTPACKET      gMsgPacket;
 static DWORD         gSerial;
 
@@ -860,7 +861,7 @@ static void motion_event( HWND hwnd, XEvent *event )
 
     memset(&gMsgPacket,0,sizeof(WTPACKET));
 
-    TRACE("Received tablet motion event (%p); device id %d, cursor num %d\n",hwnd, (int) motion->deviceid, curnum);
+    TRACE("Received tablet motion event (%p); device id %d, cursor num %d, pos %d %d\n",hwnd, (int) motion->deviceid, curnum, motion->axis_data[0], motion->axis_data[1]);
 
     /* Set cursor to inverted if cursor is the eraser */
     gMsgPacket.pkStatus = (cursor->TYPE  == CSR_TYPE_ERASER ? TPS_INVERT:0);
@@ -875,8 +876,15 @@ static void motion_event( HWND hwnd, XEvent *event )
                                              abs(motion->axis_data[4])))
                                            * (gMsgPacket.pkStatus & TPS_INVERT?-1:1));
     gMsgPacket.pkNormalPressure = motion->axis_data[2];
+
+    if (gMsgPacket.pkOrientation.orAltitude < 0)
+    {
+        FIXME("negative orAltitude\n");
+        return;
+    }
+
     gMsgPacket.pkButtons = get_button_state(curnum);
-    SendMessageW(hwndTabletDefault,WT_PACKET,gMsgPacket.pkSerialNumber,(LPARAM)hwnd);
+    SendMessageW(hwndTabletDefault,WT_PACKET,gMsgPacket.pkSerialNumber,(gActiveOwner == NULL ? (LPARAM)hwnd : (LPARAM)gActiveOwner));
 }
 
 static void button_event( HWND hwnd, XEvent *event )
@@ -904,8 +912,15 @@ static void button_event( HWND hwnd, XEvent *event )
                                                             abs(button->axis_data[4])))
                                            * (gMsgPacket.pkStatus & TPS_INVERT?-1:1));
     gMsgPacket.pkNormalPressure = button->axis_data[2];
+
+    if (gMsgPacket.pkOrientation.orAltitude < 0)
+    {
+        FIXME("negative orAltitude\n");
+        return;
+    }
+
     gMsgPacket.pkButtons = get_button_state(curnum);
-    SendMessageW(hwndTabletDefault,WT_PACKET,gMsgPacket.pkSerialNumber,(LPARAM)hwnd);
+    SendMessageW(hwndTabletDefault,WT_PACKET,gMsgPacket.pkSerialNumber,(gActiveOwner == NULL ? (LPARAM)hwnd : (LPARAM)gActiveOwner));
 }
 
 static void key_event( HWND hwnd, XEvent *event )
@@ -943,6 +958,13 @@ static void proximity_event( HWND hwnd, XEvent *event )
                                                             abs(proximity->axis_data[4])))
                                            * (gMsgPacket.pkStatus & TPS_INVERT?-1:1));
     gMsgPacket.pkNormalPressure = proximity->axis_data[2];
+
+    if (gMsgPacket.pkOrientation.orAltitude < 0)
+    {
+        FIXME("negative orAltitude\n");
+        return;
+    }
+
     gMsgPacket.pkButtons = get_button_state(curnum);
 
     /* FIXME: LPARAM loword is true when cursor entering context, false when leaving context
@@ -954,7 +976,7 @@ static void proximity_event( HWND hwnd, XEvent *event )
      */
     proximity_info = MAKELPARAM((event->type == proximity_in_type),
                      (event->type == proximity_in_type) || (event->type == proximity_out_type));
-    SendMessageW(hwndTabletDefault, WT_PROXIMITY, (WPARAM)hwnd, proximity_info);
+    SendMessageW(hwndTabletDefault, WT_PROXIMITY, (gActiveOwner == NULL ? (WPARAM)hwnd : (WPARAM)gActiveOwner), proximity_info);
 }
 
 /***********************************************************************
@@ -972,6 +994,15 @@ int CDECL X11DRV_AttachEventQueueToTablet(HWND hOwner)
     XEventClass     event_list[7];
     Window          win = X11DRV_get_whole_window( hOwner );
 
+    if (!win)
+    {
+        /* Workaround for hWnd with no Window */
+        if ((win = X11DRV_get_whole_window(GetAncestor(hOwner, GA_PARENT)))) { }
+        else if ((win = X11DRV_get_whole_window(GetAncestor(hOwner, GA_ROOTOWNER)))) { }
+        else if ((win = X11DRV_get_whole_window(GetAncestor(hOwner, GA_ROOT)))) { }
+        gActiveOwner = hOwner;
+    }
+
     if (!win || !xinput_handle) return 0;
 
     TRACE("Creating context for window %p (%lx)  %i cursors\n", hOwner, win, gNumCursors);
--