Fix tooltips pulling Emacs window to front on windows-nt, bug #17408.

  * w32fns.c (Fx_show_tip): Add SWP_NOOWNERZORDER flag to
  SetWindowPos invocations.

2 files changed, 12 insertions, 4 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 9839b6a2146..720ab11135f 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,9 @@
+2014-05-06  Jarek Czekalski  <jarekczek@poczta.onet.pl>
+
+        Stop tooltips pulling Emacs window to front (Bug#17408).
+        * w32fns.c (Fx_show_tip): Add SWP_NOOWNERZORDER flag to
+        SetWindowPos invocations.
+
 2014-05-05  Jan Djärv  <jan.h.d@swipnet.se>
 
         * nsselect.m (Fx_selection_exists_p): Just return Qnil if window system
diff --git a/src/w32fns.c b/src/w32fns.c
index ffe63a3cf2d..630059c38f1 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -6036,12 +6036,13 @@ Text larger than the specified size is clipped.  */)
           /* Put tooltip in topmost group and in position.  */
           SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOPMOST,
                         root_x, root_y, 0, 0,
-                        SWP_NOSIZE | SWP_NOACTIVATE);
+                        SWP_NOSIZE | SWP_NOACTIVATE | SWP_NOOWNERZORDER);
 
           /* Ensure tooltip is on top of other topmost windows (eg menus).  */
           SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOP,
                         0, 0, 0, 0,
-                        SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
+                        SWP_NOMOVE | SWP_NOSIZE
+                        | SWP_NOACTIVATE | SWP_NOOWNERZORDER);
 
           unblock_input ();
           goto start_timer;
@@ -6239,12 +6240,13 @@ Text larger than the specified size is clipped.  */)
     SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOPMOST,
                   root_x, root_y,
                   rect.right - rect.left + FRAME_COLUMN_WIDTH (f),
-                  rect.bottom - rect.top, SWP_NOACTIVATE);
+                  rect.bottom - rect.top, SWP_NOACTIVATE | SWP_NOOWNERZORDER);
 
     /* Ensure tooltip is on top of other topmost windows (eg menus).  */
     SetWindowPos (FRAME_W32_WINDOW (f), HWND_TOP,
                   0, 0, 0, 0,
-                  SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
+                  SWP_NOMOVE | SWP_NOSIZE
+                  | SWP_NOACTIVATE | SWP_NOOWNERZORDER);
 
     /* Let redisplay know that we have made the frame visible already.  */
     SET_FRAME_VISIBLE (f, 1);