comctl32: Create tooltip windows with WS_POPUP style.

dlls/comctl32/commctrl.c

@@ -1336,7 +1336,7 @@ COMCTL32_CreateToolTip(HWND hwndOwner)
 {
     HWND hwndToolTip;
 
-    hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, 0,
+    hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
 				  CW_USEDEFAULT, CW_USEDEFAULT,
 				  CW_USEDEFAULT, CW_USEDEFAULT, hwndOwner,
 				  0, 0, 0);

dlls/comctl32/tab.c

@@ -3038,7 +3038,7 @@ static LRESULT TAB_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
   if (dwStyle & TCS_TOOLTIPS) {
     /* Create tooltip control */
     infoPtr->hwndToolTip =
-      CreateWindowExW (0, TOOLTIPS_CLASSW, NULL, 0,
+      CreateWindowExW (0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
 		       CW_USEDEFAULT, CW_USEDEFAULT,
 		       CW_USEDEFAULT, CW_USEDEFAULT,
 		       hwnd, 0, 0, 0);

dlls/comctl32/toolbar.c

@@ -1950,7 +1950,7 @@ TOOLBAR_TooltipCreateControl(TOOLBAR_INFO *infoPtr)
     int i;
     NMTOOLTIPSCREATED nmttc;
 
-    infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, 0,
+    infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
             CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
             infoPtr->hwndSelf, 0, 0, 0);
 

dlls/comctl32/trackbar.c

@@ -1415,7 +1415,7 @@ TRACKBAR_Create (HWND hwnd, LPCREATESTRUCTW lpcs)
     if (dwStyle & TBS_TOOLTIPS) {
 
     	infoPtr->hwndToolTip =
-            CreateWindowExW (0, TOOLTIPS_CLASSW, NULL, 0,
+            CreateWindowExW (0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
                              CW_USEDEFAULT, CW_USEDEFAULT,
                              CW_USEDEFAULT, CW_USEDEFAULT,
                              hwnd, 0, 0, 0);