Method GTK2.TextMark()->set_visible()

Method set_visible: GTK2.TextMark set_visible(int setting)
Description: Sets the visibility of the mark; the insertion point is normally visible, i.e. you can see it as a vertical bar. Also the text widget uses a visible mark to indicate where a drop will occur when dragging-and-dropping text. Most other marks are not visible. Marks are not visible by default.