public void GetGroupTransparency(
	string group_name,
	ref double trans
)

Public Sub GetGroupTransparency ( 
	group_name As String,
	ByRef trans As Double
)

public:
void GetGroupTransparency(
	String^ group_name, 
	double% trans
)

member GetGroupTransparency : 
        group_name : string * 
        trans : float byref -> unit