- Don't use DrawEdge with NULL device context, it's invalid call and

sets last error.
- Tooltip icons must be destroyed with DestroyIcon and not with
  DeleteObject.
- Rebar cursors must be destroyed with DestroyCursor and not with
  DeleteObject.

dlls/comctl32/datetime.c

@@ -814,10 +814,11 @@ DATETIME_Size (DATETIME_INFO *infoPtr, WORD flags, INT width, INT height)
 
     TRACE("Height=%ld, Width=%ld\n", infoPtr->rcClient.bottom, infoPtr->rcClient.right);
 
-    /* use DrawEdge to adjust the size of rcEdge to get rcDraw */
     memcpy((&infoPtr->rcDraw), (&infoPtr->rcClient), sizeof(infoPtr->rcDraw));
 
-    DrawEdge(NULL, &(infoPtr->rcDraw), EDGE_SUNKEN, BF_RECT | BF_ADJUST);
+    /* subract the size of the edge drawn by DrawEdge */
+    InflateRect(&infoPtr->rcDraw, -GetSystemMetrics(SM_CXEDGE),
+                -GetSystemMetrics(SM_CYEDGE));
 
     /* set the size of the button that drops the calendar down */
     /* FIXME: account for style that allows button on left side */

dlls/comctl32/rebar.c

@@ -3786,10 +3786,10 @@ REBAR_Destroy (REBAR_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 	infoPtr->bands = NULL;
     }
 
-    DeleteObject (infoPtr->hcurArrow);
-    DeleteObject (infoPtr->hcurHorz);
-    DeleteObject (infoPtr->hcurVert);
-    DeleteObject (infoPtr->hcurDrag);
+    DestroyCursor (infoPtr->hcurArrow);
+    DestroyCursor (infoPtr->hcurHorz);
+    DestroyCursor (infoPtr->hcurVert);
+    DestroyCursor (infoPtr->hcurDrag);
     if(infoPtr->hDefaultFont) DeleteObject (infoPtr->hDefaultFont);
     SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0);
 

dlls/comctl32/tooltips.c

@@ -2836,7 +2836,7 @@ VOID
 TOOLTIPS_Unregister (void)
 {
     int i;
-    for (i = 0; i < TTI_ERROR+1; i++)
-        DeleteObject(hTooltipIcons[i]);
+    for (i = TTI_INFO; i <= TTI_ERROR; i++)
+        DestroyIcon(hTooltipIcons[i]);
     UnregisterClassW (TOOLTIPS_CLASSW, NULL);
 }