[tfaber] 68762: [SHELL32] - Fail CDefView::CreateViewWindow if a window already exists - Don't return IOleWindow from CDefView::QueryInterface Fixes reference leaks during shell32_winetest:shlview ...

Author: tfaber
Date: Wed Aug 19 08:28:24 2015
New Revision: 68762

URL: http://svn.reactos.org/svn/reactos?rev=68762&view=rev
Log:
[SHELL32]
- Fail CDefView::CreateViewWindow if a window already exists
- Don't return IOleWindow from CDefView::QueryInterface
Fixes reference leaks during shell32_winetest:shlview
CORE-9867

Modified:
    trunk/reactos/dll/win32/shell32/CDefView.cpp

Modified: trunk/reactos/dll/win32/shell32/CDefView.cpp
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/shell32/CDefView....
==============================================================================
--- trunk/reactos/dll/win32/shell32/CDefView.cpp	[iso-8859-1] (original)
+++ trunk/reactos/dll/win32/shell32/CDefView.cpp	[iso-8859-1] Wed Aug 19 08:28:24 2015
@@ -320,7 +320,8 @@
         END_MSG_MAP()

BEGIN_COM_MAP(CDefView)
-        COM_INTERFACE_ENTRY_IID(IID_IOleWindow, IOleWindow)
+        // Windows returns E_NOINTERFACE for IOleWindow
+        // COM_INTERFACE_ENTRY_IID(IID_IOleWindow, IOleWindow)
         COM_INTERFACE_ENTRY_IID(IID_IShellView, IShellView)
         COM_INTERFACE_ENTRY_IID(IID_IFolderView, IFolderView)
         COM_INTERFACE_ENTRY_IID(IID_IShellFolderView, IShellFolderView)
@@ -2193,7 +2194,7 @@
         TRACE("-- left=%i top=%i right=%i bottom=%i\n", prcView->left, prcView->top, prcView->right, prcView->bottom);

/* Validate the Shell Browser */
-    if (psb == NULL)
+    if (psb == NULL || m_hWnd)
         return E_UNEXPECTED;

/*set up the member variables*/