public delegate long DelegateStreamWriteFunction(
	IntPtr handle,
	string buffer,
	long bufferSize
)

Public Delegate Function DelegateStreamWriteFunction ( _
	handle As IntPtr, _
	buffer As String, _
	bufferSize As Long _
) As Long

public delegate long long DelegateStreamWriteFunction(
	IntPtr handle, 
	String^ buffer, 
	long long bufferSize
)