Automation Events

The graphics builder also provides event-based notification of actions, which an Automation client can intercept and react to accordingly. The following example creates a form, creates a graphics builder automation object with event capability and performs actions on two events that the graphics builder might generate, pasting a symbol and saving a page.

To enable this:

• The Graphics Builder object needs to be declared "WithEvents"

• The event handler subroutine needs to have the correct name and signature. Note how the event handler function names are gb, the graphics builder object, followed by _<eventName> e.g gb_PasteSymbol. This is consistent with standard Visual Basic event handling subroutine naming.

For details, see the individual event subroutine description.

Private WithEvents gb As GraphicsBuilder.GraphicsBuilder

Public Sub Form_Load()

Set gb = New GraphicsBuilder.GraphicsBuilder

gb.LibrarySelectionHooksEnabled = True

gb.Visible = True

End Sub

Public Sub gb_PasteSymbol()

MsgBox ("PasteSymbol")

End Sub

Private Sub gb_PageSaved(ByVal Project As String, ByVal Page As String,

ByVal LastPage As Boolean)

MsgBox "PageSaved: " + Project + "." + Page + "--"

End Sub

See Also

Error Handling