Use the Link property to access different properties for a specified link. Use the AddLink method to add a new link between two bars. For instance, the Link(exLinkShowDir) property indicates whether the arrow of the link that specifies the direction, is shown or hidden. Use the RemoveLink method to remove a specific link. Use the FirstLink and NextLink properties to enumerate the links in the control. Use the BeginUpdate and EndUpdate methods to maintain performance while adding columns, items, bars or links. Use the HTMLPicture property to add custom size pictures. Use the LinkFromPoint property to get the key of the link from the cursor.

The /NET Assembly version defines get/set shortcut properties as follow ( they start with get_ or set_ keywords ):

• LinkStartItem : Integer, retrieves or sets a value that indicates the handle of the item where the link start
• LinkStartBar : Object, retrieves or sets a value that indicates the key of the bar where the link starts
• LinkEndItem : Integer, retrieves or sets a value that indicates the handle of the item where the link ends
• LinkEndBar : Object, retrieves or sets a value that indicates the key of the bar where the link ends
• LinkVisible : Boolean, specifies whether the link is visible or hidden
• LinkUserData : Object, specifies an extra data associated with the link
• LinkStartPos : AlignmentEnum, specifies the position where the link starts in the source item
• LinkEndPos : AlignmentEnum, specifies the position where the link ends in the target item
• LinkColor : Color, specifies the color to paint the link
• LinkStyle : LinkStyleEnum, specifies the style to paint the link
• LinkWidth : Integer, specifies the width in pixels of the link
• LinkShowDir : Boolean, specifies whether the link shows the direction
• LinkText : String, specifies the HTML text being displayed on the link
• LinkToolTip : String, specifies the HTML text being shown when the cursor hovers the link
• LinksCount : Integer, specifies the number of the links within the chart

So instead using the get_Link or set_Link properties you can use these functions. 

The following VB sample displays a text plus a picture on a link:

Gantt1.Items.Link("Link", exLinkText) = " <img>excel</img><br><br><b>doc.xls"