X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1e219378a3ba79a11564f291039f47ce651c2f3e..222702b112dcc7bebe018d6f4d66fe469fefd02c:/src/gtk/slider.cpp

diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp
index dc5fdec645..c5d5be31fe 100644
--- a/src/gtk/slider.cpp
+++ b/src/gtk/slider.cpp
@@ -41,6 +41,7 @@ static const float sensitivity = 0.02;
 // "value_changed"
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static void gtk_slider_callback( GtkAdjustment *adjust,
                                  SCROLLBAR_CBACK_ARG
                                  wxSlider *win )
@@ -72,6 +73,7 @@ static void gtk_slider_callback( GtkAdjustment *adjust,
     cevent.SetInt( value );
     win->GetEventHandler()->ProcessEvent( cevent );
 }
+}
 
 //-----------------------------------------------------------------------------
 // wxSlider
@@ -132,8 +134,10 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id,
 
     m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) );
 
+#ifdef __WXGTK20__
     if (style & wxSL_INVERSE)
         gtk_range_set_inverted( GTK_RANGE(m_widget), TRUE );
+#endif
 
     GtkEnableEvents();