property Event.Pictures as String
Specifies the list of pictures to be displayed on the event.

TypeDescription
String A string expression that specifies the list of pictures to be shown on the event's body. The event's body can display one ore more pictures at the time, on different lines. For instance: "1,2/pic1" displays the 1 and 2 icons on the first line, while pic2 is displayed on the second line.
By default, the Pictures property is "", which means that initially no pictures are being displayed on the event. The Pictures or/and ExtraPictures property displays a collection of icons, pictures in the event's body. The pictures are shown on the event's body only if they fit the event's body. For instance, if the event is too small, the ShortLabel is displayed, and no icons or pictures are displayed. The PicturesAlign property indicates the alignment of the pictures relative to the event's borders. 

The Images method loads icons to the control, HTMLPicture assigns a key to a picture object, and the Pictures collection handles the identifiers of the pictures that can be used in the Pictures or ExtraPictures properties. The AddEvent event notifies your application once a new event is added. You can use this event to initialize the Pictures/PicturesAlign or ExtraPictures/ExtraPicturesAlign properties. 

In conclusion, in order to display an icon or a picture in the control you need first to load the icons or the pictures you plan to display, using the Images method, HTMLPicture, or Add method of the ExPictures collection. The Images collection can display only 16x16 icons, while the HTMLPicture, or Add method can load and display custom sized pictures. The Width/Height  property specifies the width and height of the picture to be displayed in the event's body.

The event can display icons, pictures several ways as follows:

The Picture and ExtraPictures may display one or more pictures at the time. The , character indicates the separator of pictures in the same line, while the / character divides the lines to show the pictures. For instance, "1,2" displays icon with the index 1 and 2 on the same line, while the "1/2,pic1" displays the first icon on the first line, the second icon and the picture pic1 on the second line.