gtk:text-mark-visible (mark)

mark -- a gtk:text-mark object
visibility -- a boolean whether the text mark is visible

True if the text mark is visible.

The gtk:text-mark-visible function returns true if the text mark is visible, that is a cursor is displayed for it. The (setf gtk:text-mark-visible) function sets the visibility.

The insertion point is normally visible, that is, you can see it as a vertical bar. Also, the text widget uses a visible text mark to indicate where a drop will occur when dragging-and-dropping text. Most other text marks are not visible. Text marks are not visible by default.