void TraceFormat(
	IFormatProvider formatProvider,
	FormatMessageCallback formatMessageCallback,
	string filePath = null,
	string memberName = null,
	int lineNumber = 0
)

Sub TraceFormat ( 
	formatProvider As IFormatProvider,
	formatMessageCallback As FormatMessageCallback,
	Optional filePath As String = Nothing,
	Optional memberName As String = Nothing,
	Optional lineNumber As Integer = 0
)

void TraceFormat(
	IFormatProvider^ formatProvider, 
	FormatMessageCallback^ formatMessageCallback, 
	String^ filePath = nullptr, 
	String^ memberName = nullptr, 
	int lineNumber = 0
)

abstract TraceFormat : 
        formatProvider : IFormatProvider * 
        formatMessageCallback : FormatMessageCallback * 
        ?filePath : string * 
        ?memberName : string * 
        ?lineNumber : int 
(* Defaults:
        let _filePath = defaultArg filePath null
        let _memberName = defaultArg memberName null
        let _lineNumber = defaultArg lineNumber 0
*)
-> unit