Contains the text string that can appear when the user moves the mouse over the image.
property Hint: string;
Use the Hint property to provide a string of help text as a Help Hint. A Help Hint is a box containing help text that appears for a gutter object when the user moves mouse pointer over the gutter object's image and pauses momentarily.
Use THintProps.TimeGutter to specify delay before hint to be displayed.
Use THintProps.ShowHints to enable/disable gutter object's hints.