By default, the ToolBarFormat property is "-1,100,101" and arranges the toolbar as in the following screen shot. If empty, the control's toolbar displays no buttons.

The predefined identifiers for ToolBarFormat property are:

• 100, Home (restores the view to the origin)
• 101, Zoom (changes the zooming factor of the surface)
• 103, Undo (undoes the last control operation, enabled only if the Undo operation is possible)
• 104, Redo (redoes the next action in the control's redo queue, enabled only if the Undo operation is possible)

Use the ToolBarFormat property to add new buttons, to display icons, pictures, or any other HTML caption. The ToolBarCaption property specifies the caption of the button. The ToolBarToolTip property specifies the button's tooltip. The control fires the ToolBarClick event when the user clicks a button in the control's toolbar. The control fires the ToolBarAnchorClick event when the user clicks an hyperlink element. The ToolBarRefresh method refreshes the control's toolbar.

For instance, the following screen shot shows the control's toolbar when the ToolBarFormat property is "-1,100,101,1000"

 

If the ToolBarCaption(1000) property is set as "<sha ;;0>custom" the control's toolbar shows as: