Write an OnCustomizeNewButton event handler to supply your own TToolButton objects to represent the tool buttons that a user adds in the toolbar customize dialog. 

Sender is the toolbar to which the user is adding a button. 

Index is the index in the Buttons property where the new button will appear. This should be assigned as the Index property of the new button. 

Button returns a TToolButton object that the event handler creates and initializes. It is used to represent the new tool button in the Buttons property. If the event handler does not return a TToolButton object, the add operation fails. 

Customizable 

OnCustomizeCanDelete 

OnCustomizeCanInsert 

OnCustomized 

OnCustomizeAdded 

OnCustomizeDelete 

OnCustomizeReset 

OnCustomizing 

Buttons 

Index