- /* on some machines, the default visual is just 256 colours, so
- we make sure we get the best. this can sometimes be wasteful,
- of course, but what do these guys pay $30.000 for? */
+ // if this is a wxGLApp (derived from wxApp), and we've already
+ // chosen a specific visual, then derive the GdkVisual from that
+ if (m_glVisualInfo != NULL)
+ {
+#ifdef __WXGTK20__
+ // seems gtk_widget_set_default_visual no longer exists?
+ GdkVisual* vis = gtk_widget_get_default_visual();
+#else
+ GdkVisual* vis = gdkx_visual_get(
+ ((XVisualInfo *) m_glVisualInfo) ->visualid );
+ gtk_widget_set_default_visual( vis );
+#endif
+
+ GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
+ gtk_widget_set_default_colormap( colormap );
+
+ visual = vis;
+ }
+
+ // On some machines, the default visual is just 256 colours, so
+ // we make sure we get the best. This can sometimes be wasteful.