public override AbstractExtensionHeader ParseExtensionHeader(
	string headerName
)

Public Overrides Function ParseExtensionHeader ( 
	headerName As String
) As AbstractExtensionHeader

public:
virtual AbstractExtensionHeader^ ParseExtensionHeader(
	String^ headerName
) override

abstract ParseExtensionHeader : 
        headerName : string -> AbstractExtensionHeader 
override ParseExtensionHeader : 
        headerName : string -> AbstractExtensionHeader