'Declaration
 
Protected Overrides Function OnCoerceCloseButtonVisibility( _
   ByVal newValue As Visibility _
) As Object

'Usage
 
Dim instance As MessageBox
Dim newValue As Visibility
Dim value As Object
 
value = instance.OnCoerceCloseButtonVisibility(newValue)

protected override object OnCoerceCloseButtonVisibility( 
   Visibility newValue
)

Parameters

newValue

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

MessageBox Class
MessageBox Members
Base Implementation in OnCoerceCloseButtonVisibility