Use g_signal* instead of deprecated gtk_signal*. Use proper casts for the arguments.

Worth norting from the GTK+ docs: "For future usage, direct use of the GSignal API is recommended, this avoids
significant performance hits where GtkArg structures have to be converted into GValues."


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@37061 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/scrolwin.cpp

@@ -117,14 +117,14 @@ void wxScrollHelperNative::DoAdjustScrollbar(GtkAdjustment *adj,
             else
             {
                 // We need to actually scroll window
-                gtk_signal_emit_by_name( GTK_OBJECT(adj), "value_changed" );
+                g_signal_emit_by_name (adj, "value_changed");
             }
         }
     }
 
     *lines = (int)(adj->upper + 0.5);
     *linesPerPage = (int)(adj->page_increment + 0.5);
-    gtk_signal_emit_by_name( GTK_OBJECT(adj), "changed" );
+    g_signal_emit_by_name (adj, "changed");
 }
 
 void wxScrollHelperNative::AdjustScrollbars()