Initialize values (uninitialized variables reported to cause problems on WinME)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@36346 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/registry.cpp

@@ -834,7 +834,7 @@ bool wxRegKey::QueryValue(const wxChar *szValue,
   if ( CONST_CAST Open() ) {
     #ifdef  __WIN32__
       // first get the type and size of the data
-      DWORD dwType, dwSize;
+      DWORD dwType=REG_NONE, dwSize=0;
       m_dwLastError = RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
                                       &dwType, NULL, &dwSize);
       if ( m_dwLastError == ERROR_SUCCESS ) {