[PATCH] comctl32: Check is a safe window.

[Chao Long]

014a:014b:trace:listview:notify_hdr   <= 0
014a:014b:trace:listview:notify_dispinfoT  resulting code=-176
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=10, wParam=0, lParam=0, isW=1)
014a:014b:trace:listview:LISTVIEW_WindowProc (hwnd=00020054 uMsg=210 wParam=2 lParam=5005c)
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=18, wParam=0, lParam=0, isW=1)
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=46, wParam=0, lParam=303ba4, isW=1)
014a:014b:trace:listview:LISTVIEW_WindowProc (hwnd=00020054 uMsg=14 wParam=e0324 lParam=0)
014a:014b:trace:listview:LISTVIEW_EraseBkgnd (hdc=000E0324)
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=47, wParam=0, lParam=303ba4, isW=1)
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=210, wParam=3ec0002, lParam=30050, isW=1)
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=2, wParam=0, lParam=0, isW=1)
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=8, wParam=20054, lParam=0, isW=1)
014a:014b:trace:seh:raise_exception code=c0000005 flags=0 addr=0x7d0b2b18 ip=7d0b2b18 tid=014b
014a:014b:trace:seh:raise_exception  info[0]=00000000
014a:014b:trace:seh:raise_exception  info[1]=00000074
014a:014b:trace:seh:raise_exception  eax=00000000 ebx=003047b4 ecx=00304220 edx=00000000 esi=00304eec edi=00000000
014a:014b:trace:seh:raise_exception  ebp=003046a8 esp=00304680 cs=0023 ds=002b es=002b fs=0063 gs=006b flags=00010206

The window is destroy. killfocus msg is not safe.

014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=2, wParam=0, lParam=0, isW=1)
014a:014b:trace:listview:EditLblWndProcT (hwnd=0005005C, uMsg=8, wParam=20054, lParam=0, isW=1)