'Declaration
 
Public Delegate Sub DialogClosingEventHandler( _
   ByVal sender As Object, _
   ByVal eventArgs As DialogClosingEventArgs _
) 

'Usage
 
Dim instance As New DialogClosingEventHandler(AddressOf HandlerMethod)

public delegate void DialogClosingEventHandler( 
   object sender,
   DialogClosingEventArgs eventArgs
)

Parameters

sender

eventArgs

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

DialogClosingEventHandler Members
Xceed.Wpf.Themes.MaterialDesign Namespace