I have written some gWidgets scripts before in the past but have a different box now (Debian KWheezy) and cannot get gWidgets working. It may be an obvious mistake but auntie Google (who has helped me a lot to get as far as I am now) leaves me in the dark now. Here is where I am stuck: - - - - - > library( gWidgets ) > library( gWidgetsRGtk2 ) Loading required package: RGtk2 No protocol specified R session is headless; GTK+ not initialized. > obj <- gbutton("Hello world", container = gwindow())
(R:15675): GLib-GObject-WARNING **: invalid (NULL) pointer instance (R:15675): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed (R:15675): Gtk-WARNING **: Screen for GtkWindow not set; you must always set a screen for a GtkWindow before using the window (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion `GDK_IS_SCREEN (screen)' failed (R:15675): Gdk-CRITICAL **: IA__gdk_colormap_get_visual: assertion `GDK_IS_COLORMAP (colormap)' failed (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion `GDK_IS_SCREEN (screen)' failed (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion `GDK_IS_SCREEN (screen)' failed (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion `GDK_IS_SCREEN (screen)' failed (R:15675): Gdk-CRITICAL **: IA__gdk_window_new: assertion `GDK_IS_WINDOW (parent)' failed *** caught segfault *** address 0x18, cause 'memory not mapped' Traceback: 1: .Call(name, ..., PACKAGE = PACKAGE) 2: .RGtkCall("S_gtk_widget_show", object, PACKAGE = "RGtk2") 3: method(obj, ...) 4: window$Show() 5: .gwindow(toolkit, title, visible, width, height, parent, handler, action, ...) 6: .gwindow(toolkit, title, visible, width, height, parent, handler, action, ...) 7: gwindow() 8: .gbutton(toolkit, text, border, handler, action, container, ...) 9: .gbutton(toolkit, text, border, handler, action, container, ...) 10: gbutton("Hello world", container = gwindow()) - - - - - > sessionInfo() > > R version 3.1.1 (2014-07-10) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] tools_3.1.1 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.