void set_markup_column(int column);

Sets the column number of the model which contains the markup data. It overrides the text-column, causing the markup and not the normal text to be displayed if both are set.

Set it to -1 to disable it. If both markup and text columns are -1 (disabled), no label is shown.

See also: get_markup_column() , set_text_column() , set_pixbuf_column()