Represents the method that handles the BeforeExecuteAlgorithm event.
[Visual Basic .NET] Public Delegate Sub BeforeExecuteAlgorithmEventHandler ( _ ByVal Layer As ILayer, _ ByVal SchematicAlgorithm As ISchematicAlgorithm, _ ByRef CanExecute As Boolean _ )
[C#] public delegate void BeforeExecuteAlgorithmEventHandler ( ILayer Layer, ISchematicAlgorithm SchematicAlgorithm, ref bool CanExecute );