comctl32: Disable owner of modal property sheets before creating the dialog.

dlls/comctl32/propsheet.c

@@ -2784,17 +2784,21 @@ static INT do_loop(const PropSheetInfo *psInfo)
 static INT_PTR PROPSHEET_PropertySheet(PropSheetInfo* psInfo, BOOL unicode)
 {
   INT_PTR bRet = 0;
+  HWND parent = NULL;
   if (psInfo->active_page >= psInfo->nPages) psInfo->active_page = 0;
   TRACE("startpage: %d of %d pages\n", psInfo->active_page, psInfo->nPages);
 
   psInfo->unicode = unicode;
   psInfo->ended = FALSE;
 
-  bRet = PROPSHEET_CreateDialog(psInfo);
   if(!psInfo->isModeless)
   {
-      HWND parent = GetParent(psInfo->hwnd);
+      parent = psInfo->ppshheader.hwndParent;
       if (parent) EnableWindow(parent, FALSE);
+  }
+  bRet = PROPSHEET_CreateDialog(psInfo);
+  if(!psInfo->isModeless)
+  {
       bRet = do_loop(psInfo);
       if (parent) EnableWindow(parent, TRUE);
   }

dlls/comctl32/tests/propsheet.c

@@ -140,7 +140,7 @@ static int CALLBACK disableowner_callback(HWND hwnd, UINT msg, LPARAM lparam)
     {
     case PSCB_INITIALIZED:
       {
-        todo_wine ok(IsWindowEnabled(parent) == 0, "parent window should be disabled\n");
+        ok(IsWindowEnabled(parent) == 0, "parent window should be disabled\n");
         PostQuitMessage(0);
         return FALSE;
       }