-const char *wxButtonNameStr = "button";
-const char *wxCanvasNameStr = "canvas";
-const char *wxCheckBoxNameStr = "check";
-const char *wxChoiceNameStr = "choice";
-const char *wxComboBoxNameStr = "comboBox";
-const char *wxDialogNameStr = "dialog";
-const char *wxFrameNameStr = "frame";
-const char *wxGaugeNameStr = "gauge";
-const char *wxStaticBoxNameStr = "groupBox";
-const char *wxListBoxNameStr = "listBox";
-const char *wxStaticTextNameStr = "message";
-const char *wxStaticBitmapNameStr = "message";
-const char *wxMultiTextNameStr = "multitext";
-const char *wxPanelNameStr = "panel";
-const char *wxRadioBoxNameStr = "radioBox";
-const char *wxRadioButtonNameStr = "radioButton";
-const char *wxBitmapRadioButtonNameStr = "radioButton";
-const char *wxScrollBarNameStr = "scrollBar";
-const char *wxSliderNameStr = "slider";
-const char *wxStaticNameStr = "static";
-const char *wxTextCtrlWindowNameStr = "textWindow";
-const char *wxTextCtrlNameStr = "text";
-const char *wxVirtListBoxNameStr = "virtListBox";
-const char *wxButtonBarNameStr = "buttonbar";
-const char *wxEnhDialogNameStr = "Shell";
-const char *wxToolBarNameStr = "toolbar";
-const char *wxStatusLineNameStr = "status_line";
-const char *wxEmptyString = "";
-const char *wxGetTextFromUserPromptStr = "Input Text";
-const char *wxMessageBoxCaptionStr = "Message";
-const char *wxFileSelectorPromptStr = "Select a file";
-const char *wxFileSelectorDefaultWildcardStr = "*.*";
-const char *wxInternalErrorStr = "wxWindows Internal Error";
-const char *wxFatalErrorStr = "wxWindows Fatal Error";
+//
+const wxChar* wxButtonNameStr = wxT("button");
+const wxChar* wxCanvasNameStr = wxT("canvas");
+const wxChar* wxCheckBoxNameStr = wxT("check");
+const wxChar* wxChoiceNameStr = wxT("choice");
+const wxChar* wxComboBoxNameStr = wxT("comboBox");
+const wxChar* wxDialogNameStr = wxT("dialog");
+const wxChar* wxFrameNameStr = wxT("frame");
+const wxChar* wxGaugeNameStr = wxT("gauge");
+const wxChar* wxStaticBoxNameStr = wxT("groupBox");
+const wxChar* wxListBoxNameStr = wxT("listBox");
+const wxChar* wxStaticTextNameStr = wxT("message");
+const wxChar* wxStaticBitmapNameStr = wxT("message");
+const wxChar* wxMultiTextNameStr = wxT("multitext");
+const wxChar* wxPanelNameStr = wxT("panel");
+const wxChar* wxRadioBoxNameStr = wxT("radioBox");
+const wxChar* wxRadioButtonNameStr = wxT("radioButton");
+const wxChar* wxBitmapRadioButtonNameStr = wxT("radioButton");
+const wxChar* wxScrollBarNameStr = wxT("scrollBar");
+const wxChar* wxSliderNameStr = wxT("slider");
+const wxChar* wxStaticNameStr = wxT("static");
+const wxChar* wxTextCtrlWindowNameStr = wxT("textWindow");
+const wxChar* wxTextCtrlNameStr = wxT("text");
+const wxChar* wxVirtListBoxNameStr = wxT("virtListBox");
+const wxChar* wxButtonBarNameStr = wxT("buttonbar");
+const wxChar* wxEnhDialogNameStr = wxT("Shell");
+const wxChar* wxToolBarNameStr = wxT("toolbar");
+const wxChar* wxStatusLineNameStr = wxT("status_line");
+const wxChar* wxGetTextFromUserPromptStr = wxT("Input Text");
+const wxChar* wxMessageBoxCaptionStr = wxT("Message");
+const wxChar* wxFileSelectorPromptStr = wxT("Select a file");
+const wxChar* wxFileSelectorDefaultWildcardStr = wxT("*.*");
+const wxChar* wxInternalErrorStr = wxT("wxWindows Internal Error");
+const wxChar* wxFatalErrorStr = wxT("wxWindows Fatal Error");
+const wxChar* wxTreeCtrlNameStr = wxT("treeCtrl");
+const wxChar* wxDirDialogNameStr = wxT("wxDirCtrl");
+const wxChar* wxDirDialogDefaultFolderStr = wxT("/");
+
+//
+// Class names
+//
+const wxChar* wxFrameClassName = wxT("wxFrameClass");
+const wxChar* wxFrameClassNameNoRedraw = wxT("wxFrameClassNR");
+const wxChar* wxMDIFrameClassName = wxT("wxMDIFrameClass");
+const wxChar* wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
+const wxChar* wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
+const wxChar* wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
+const wxChar* wxPanelClassName = wxT("wxPanelClass");
+const wxChar* wxPanelClassNameNR = wxT("wxPanelClassNR");
+const wxChar* wxCanvasClassName = wxT("wxCanvasClass");
+const wxChar* wxCanvasClassNameNR = wxT("wxCanvasClassNR");