File/dir dialog styles and other changes (patch 1488371):

- check invalid combinations of styles in wxFileDialogBase::Create()
- use wxFD_XXX naming convention for wxFileDialog styles
- replaces wxDD_NEW_DIR_BUTTON with wxDD_DIR_MUST_EXIST
- removes #ifdef __WXGTK24__ / #endif blocks from wxGTK code
- removes wxFileDialogBase::Get/SetStyle and wxFileDialogBase::m_fileName
- renames wxDirDialogGTK to wxDirDialog


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39402 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/sound/sound.cpp

@@ -984,7 +984,7 @@ void MyFrame::OnSelectFile(wxCommandEvent& WXUNUSED(event))
 #if wxUSE_FILEDLG
     wxFileDialog dlg(this, _T("Choose a sound file"),
                      wxEmptyString, wxEmptyString,
-                     _T("WAV files (*.wav)|*.wav"), wxOPEN|wxCHANGE_DIR);
+                     _T("WAV files (*.wav)|*.wav"), wxFD_OPEN|wxFD_CHANGE_DIR);
     if ( dlg.ShowModal() == wxID_OK )
     {
         m_soundFile = dlg.GetPath();