GtkType
GtkType is used in GtkListStore and GtkTreeStore to determine the type of the column in the data table.
It depends on the GtkType, what type of data may be stored in the particular column and how the default GtkCellRenderer displays the value in the view.
Value | Symbolic name | Description |
  0 | Gtk::TYPE_INVALID | |
  4 | Gtk::TYPE_NONE | |
  8 | Gtk::TYPE_INTERFACE | |
  12 | Gtk::TYPE_CHAR | |
  20 | Gtk::TYPE_BOOLEAN | A boolean value, true or false |
  32 | Gtk::TYPE_LONG | A big integer number. |
  48 | Gtk::TYPE_ENUM | |
  52 | Gtk::TYPE_FLAGS | |
  60 | Gtk::TYPE_DOUBLE | A decimal number with a fraction dot in it. |
  64 | Gtk::TYPE_STRING | A normal string. |
  68 | Gtk::TYPE_POINTER | |
  72 | Gtk::TYPE_BOXED | |
  76 | Gtk::TYPE_PARAM | |
  80 | Gtk::TYPE_OBJECT | |
  137706104 | Gtk::TYPE_PHP_VALUE | Any PHP variable content. |