WinCE compilation fix: don't use FNERR_INVALIDFILENAME

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@55642 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/filedlg.cpp

@@ -438,7 +438,13 @@ int wxFileDialog::ShowModal()
     DWORD errCode;
     bool success = DoShowCommFileDialog(&of, m_windowStyle, &errCode);
 
-    if ( !success && errCode == FNERR_INVALIDFILENAME && of.lpstrFile[0] )
+    if ( !success &&
+            // FNERR_INVALIDFILENAME is not defined under CE (besides we don't
+            // use CommDlgExtendedError() there anyhow)
+#ifndef __WXWINCE__
+            errCode == FNERR_INVALIDFILENAME &&
+#endif // !__WXWINCE__
+                of.lpstrFile[0] )
     {
         // this can happen if the default file name is invalid, try without it now
         of.lpstrFile[0] = _T('\0');