diff --git a/src/univ/bmpbuttn.cpp b/src/univ/bmpbuttn.cpp
index 638d441937..112dac3646 100644
--- a/src/univ/bmpbuttn.cpp
+++ b/src/univ/bmpbuttn.cpp
@@ -64,7 +64,7 @@ bool wxBitmapButton::Create(wxWindow *parent,
     // we add wxBU_EXACTFIT because the bitmap buttons are not the standard
     // ones and so shouldn't be forced to be of the standard size which is
     // typically too big for them
-    if ( !wxButton::Create(parent, id, bitmap, _T(""),
+    if ( !wxButton::Create(parent, id, bitmap, wxEmptyString,
                            pos, size, style | wxBU_EXACTFIT, validator, name) )
         return false;
 
diff --git a/src/univ/menu.cpp b/src/univ/menu.cpp
index 962d1549ed..9b682f1b25 100644
--- a/src/univ/menu.cpp
+++ b/src/univ/menu.cpp
@@ -1832,7 +1832,7 @@ void wxMenuBar::SetLabelTop(size_t pos, const wxString& label)
 
 wxString wxMenuBar::GetLabelTop(size_t pos) const
 {
-    wxCHECK_MSG( pos < GetCount(), _T(""), _T("invalid index in GetLabelTop") );
+    wxCHECK_MSG( pos < GetCount(), wxEmptyString, _T("invalid index in GetLabelTop") );
 
     return m_menuInfos[pos].GetLabel();
 }
diff --git a/src/univ/notebook.cpp b/src/univ/notebook.cpp
index c97f7189b8..f480c05b56 100644
--- a/src/univ/notebook.cpp
+++ b/src/univ/notebook.cpp
@@ -144,7 +144,7 @@ bool wxNotebook::Create(wxWindow *parent,
 
 wxString wxNotebook::GetPageText(size_t nPage) const
 {
-    wxCHECK_MSG( IS_VALID_PAGE(nPage), _T(""), _T("invalid notebook page") );
+    wxCHECK_MSG( IS_VALID_PAGE(nPage), wxEmptyString, _T("invalid notebook page") );
 
     return m_titles[nPage];
 }
diff --git a/src/univ/radiobox.cpp b/src/univ/radiobox.cpp
index ba7e54ab97..6637727315 100644
--- a/src/univ/radiobox.cpp
+++ b/src/univ/radiobox.cpp
@@ -112,7 +112,7 @@ wxRadioBox::wxRadioBox(wxWindow *parent, wxWindowID id, const wxString& title,
 
     Init();
 
-    (void)Create(parent, id, title, pos, size, chs.GetCount(), 
+    (void)Create(parent, id, title, pos, size, chs.GetCount(),
                  chs.GetStrings(), majorDim, style, val, name);
 }
 
@@ -129,7 +129,7 @@ bool wxRadioBox::Create(wxWindow *parent,
 {
     wxCArrayString chs(choices);
 
-    return Create(parent, id, title, pos, size, chs.GetCount(), 
+    return Create(parent, id, title, pos, size, chs.GetCount(),
                   chs.GetStrings(), majorDim, style, val, name);
 }
 
@@ -309,7 +309,7 @@ void wxRadioBox::OnRadioButton(wxEvent& event)
 
 wxString wxRadioBox::GetString(int n) const
 {
-    wxCHECK_MSG( IsValid(n), _T(""),
+    wxCHECK_MSG( IsValid(n), wxEmptyString,
                  _T("invalid index in wxRadioBox::GetString") );
 
     return m_buttons[n]->GetLabel();
diff --git a/src/univ/statusbr.cpp b/src/univ/statusbr.cpp
index cbbb9672e4..15485a18a1 100644
--- a/src/univ/statusbr.cpp
+++ b/src/univ/statusbr.cpp
@@ -183,7 +183,7 @@ void wxStatusBarUniv::SetStatusText(const wxString& text, int number)
 
 wxString wxStatusBarUniv::GetStatusText(int number) const
 {
-    wxCHECK_MSG( number >= 0 && number < m_nFields, _T(""),
+    wxCHECK_MSG( number >= 0 && number < m_nFields, wxEmptyString,
                  _T("invalid status bar field index") );
 
     return m_statusText[number];
diff --git a/src/univ/textctrl.cpp b/src/univ/textctrl.cpp
index 8583562101..52ba1a4928 100644
--- a/src/univ/textctrl.cpp
+++ b/src/univ/textctrl.cpp
@@ -821,7 +821,7 @@ wxString wxTextCtrl::GetValue() const
 
 void wxTextCtrl::Clear()
 {
-    SetValue(_T(""));
+    SetValue(wxEmptyString);
 }
 
 bool wxTextCtrl::ReplaceLine(wxTextCoord line,
@@ -1249,7 +1249,7 @@ void wxTextCtrl::Remove(wxTextPos from, wxTextPos to)
     // if necessary
     OrderPositions(from, to);
 
-    Replace(from, to, _T(""));
+    Replace(from, to, wxEmptyString);
 }
 
 void wxTextCtrl::WriteText(const wxString& text)
@@ -1651,7 +1651,7 @@ wxString wxTextCtrl::GetLineText(wxTextCoord line) const
         //this is called during DoGetBestSize
         if (line == 0 && GetLineCount() == 0) return wxEmptyString ;
 
-        wxCHECK_MSG( (size_t)line < GetLineCount(), _T(""),
+        wxCHECK_MSG( (size_t)line < GetLineCount(), wxEmptyString,
                      _T("line index out of range") );
 
         return GetLines()[line];
diff --git a/src/xrc/xh_bmp.cpp b/src/xrc/xh_bmp.cpp
index 47356ff0ed..f2c1a15a43 100644
--- a/src/xrc/xh_bmp.cpp
+++ b/src/xrc/xh_bmp.cpp
@@ -33,7 +33,7 @@ wxBitmapXmlHandler::wxBitmapXmlHandler()
 
 wxObject *wxBitmapXmlHandler::DoCreateResource()
 {
-    return new wxBitmap(GetBitmap(wxT("")));
+    return new wxBitmap(GetBitmap(wxEmptyString));
 }
 
 bool wxBitmapXmlHandler::CanHandle(wxXmlNode *node)
@@ -50,7 +50,7 @@ wxIconXmlHandler::wxIconXmlHandler()
 
 wxObject *wxIconXmlHandler::DoCreateResource()
 {
-    return new wxIcon(GetIcon(wxT("")));
+    return new wxIcon(GetIcon(wxEmptyString));
 }
 
 bool wxIconXmlHandler::CanHandle(wxXmlNode *node)