Running win32++demo.exe from Explorer:
--------------------------------------
MainFrameBase::OpenShellFolders(): parent_pidl=C:\ReactOS\system32
fixme:exec:SHELL_execute flags ignored: 0x00000004
(../../dll/win32/kernel32/client/proc.c:4037) Current directory: C:\ReactOS\system32
(../../lib/rtl/actctx.c:1569) unknown element compatibility
(../../lib/rtl/actctx.c:955) Unsupported yet language attribute (*)

Closing the window (always press Ignore):
-----------------------------------------
fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2510
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!

fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2510
(../../win32ss/user/ntuser/msgqueue.c:1390) err: Not the same cursor!
(../../win32ss/user/ntuser/cursoricon.c:1503) err: UserGetCurIconObject() failed!
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!

fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2510
(../../win32ss/user/ntuser/msgqueue.c:1390) err: Not the same cursor!
(../../win32ss/user/ntuser/cursoricon.c:1503) err: UserGetCurIconObject() failed!
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!

fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2510
(../../win32ss/user/ntuser/msgqueue.c:1390) err: Not the same cursor!
(../../win32ss/user/ntuser/cursoricon.c:1503) err: UserGetCurIconObject() failed!
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!

fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2510
(../../win32ss/user/ntuser/msgqueue.c:1390) err: Not the same cursor!
(../../win32ss/user/ntuser/cursoricon.c:1503) err: UserGetCurIconObject() failed!
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!

fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2510
(../../win32ss/user/ntuser/msgqueue.c:1390) err: Not the same cursor!
(../../win32ss/user/ntuser/cursoricon.c:1503) err: UserGetCurIconObject() failed!
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!

fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2943
(../../win32ss/user/ntuser/msgqueue.c:1390) err: Not the same cursor!
(../../win32ss/user/ntuser/cursoricon.c:1503) err: UserGetCurIconObject() failed!
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!

fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2897
(../../win32ss/user/ntuser/msgqueue.c:1390) err: Not the same cursor!
(../../win32ss/user/ntuser/cursoricon.c:1503) err: UserGetCurIconObject() failed!
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!


Closing the window (press Cancel):
----------------------------------
fixme:msvcrt:_assert Assertion failed: ::IsWindow(m_hWnd), file ../../include/reactos/libs/win32++/wincore.h, line 2510
WARNING:  MmUnlockPageableImageSection at ../../ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!
Assertion 'Class->cWndReferenceCount == 0' failed at ../../win32ss/user/ntuser/class.c line 213

Entered debugger on embedded INT3 at 0x0008:0x8094d096.