OnBuildMenuEventHandler Delegate

public delegate void OnBuildMenuEventHandler(
        ref string flyoutTitle,
        List<Button> filePaths
)

Public Delegate Sub OnBuildMenuEventHandler ( 
        ByRef flyoutTitle As String,
        filePaths As List(Of Button)
)

public delegate void OnBuildMenuEventHandler(
        String^% flyoutTitle, 
        List<Button^>^ filePaths
)

type OnBuildMenuEventHandler = 
    delegate of 
        flyoutTitle : string byref * 
        filePaths : List<Button> -> unit