Label.setMarkup

Sets the labels text and attributes from markup.

The string must be marked up with Pango markup (see funcPango.parse_markup).

If the str is external data, you may need to escape it with glib.global.markupEscapeText or glib.global.markupPrintfEscaped:

GtkWidget *self = gtk_label_new (NULL);
const char *str = "...";
const char *format = "<span style=\"italic\">\%s</span>";
char *markup;

markup = g_markup_printf_escaped (format, str);
gtk_label_set_markup (GTK_LABEL (self), markup);
g_free (markup);

This function will set the gtk.label.Label.useMarkup property to true as a side effect.

If you set the label contents using the gtk.label.Label.label property you should also ensure that you set the gtk.label.Label.useMarkup property accordingly.

See also: gtk.label.Label.setText