{"id":563,"date":"2022-08-30T15:03:26","date_gmt":"2022-08-30T15:03:26","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2013\/11\/09\/problem-about-gtk3-collection-of-common-programming-errors\/"},"modified":"2022-08-30T15:03:26","modified_gmt":"2022-08-30T15:03:26","slug":"problem-about-gtk3-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2022\/08\/30\/problem-about-gtk3-collection-of-common-programming-errors\/","title":{"rendered":"problem about gtk3-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/a2ea8671024977ef6c6aaff73770f5bb?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nsepp2k<br \/>\nc gtk gtk3<br \/>\nI&#8217;m new to GTK+ and I get a segmentation fault error when I try to compile my program. I&#8217;ve isolated the cause of the error down to the followin<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/i.stack.imgur.com\/Qm7Qq.jpg?s=32&amp;g=1\" \/><br \/>\norschiro<br \/>\ngcc gtk gtk3<br \/>\nI found out that Color Selector from the GTK+ Code Demos is a quite nice color chooser. Thus, I would like to use it as a standalone application without having to run gtk-demos every time.I tried to compile the example code which is:#include static GtkWidget *window = NULL; static GtkWidget *da; static GdkColor color; static GtkWidget *frame;\/* Expose callback for the drawing area*\/ static gboolean expose_event_callback (GtkWidget *widget, GdkEventExpose *event, gpointer data) {GdkWindow *window = gtk_widget_get_window (widget);if (window){GtkStyle *style;cairo_t *cr;style = gtk_widget_get_style (widget);cr = gdk_cairo_create (window);gdk_cairo_set_source_color (cr, &amp;style-&gt;bg[GTK_STATE_NORMAL]);gdk_cairo_rectangle (cr, &amp;event-&gt;area);cairo_fill (cr);cairo_destroy (cr);}return TRUE; }static void change_color_callback (GtkWidget *button,gpointer data) {GtkWidget *dialog;GtkColorSelection *colorsel;gint response;dialog = gtk_color_selection_dialog_new (&#8220;Changing color&#8221;);gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (window));colorsel = GTK_COLOR_SELECTION (gtk_color_selection_dialog_get_color_selection (GTK_COLOR_SELECTION_DIALOG (dialog)));gtk_color_selection_set_previous_color (colorsel, &amp;color);gtk_color_selection_set_current_color (colorsel, &amp;color);gtk_color_selection_s<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/026ae7a4c6f0b4be4333df9f78c30f4f?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\npaullj1<br \/>\nc++ gtk gtk+ gtkmm gtk3<br \/>\nI need to embed a very simple browser ( can parse HTML, and JS Ext ) in a Gtk Widget hopefully in gtkmm. I looked into gtkmozembed, but the c++ wrapper is very out dated, so I tried to just write it in C, but I&#8217;m already committed to Gtk+ 3.0, and gtkmozembed doesn&#8217;t work with Gtk+ 3.0. Is there a way to just extend Gtk::Widget and put a gecko parser in it? Can&#8217;t really find any gecko documentation, I keep getting redirected to gtkmozembed.Any ideas\/suggestions would be greatly appreciated.Edit: @Mark After I tried using Webkitgtk, I get the following output and the application crashes.** (ttocui_gtk:16360): DEBUG: NP_Initialize ** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded ** (ttocui_gtk:16360): DEBUG: NP_Initialize ** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded ** (ttocui_gtk:16360): DEBUG: NP_Initialize ** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded ** (ttocui_gtk:16360): DEBUG: NP_Initialize ** (ttocu<\/li>\n<\/ul>\n<p id=\"rop\"><small>Originally posted 2013-11-09 20:52:52. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>sepp2k c gtk gtk3 I&#8217;m new to GTK+ and I get a segmentation fault error when I try to compile my program. I&#8217;ve isolated the cause of the error down to the followin orschiro gcc gtk gtk3 I found out that Color Selector from the GTK+ Code Demos is a quite nice color chooser. Thus, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-563","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/563","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=563"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/563\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}