Calling HEC-RAS within a Visual Basic program

[nhq]

Dear all,

I am programing with Visual Basic 6.0 and want to call and compute HEC-RAS within my program. In Visual Basic, I found the command to call HEC_RAS: Compute_CurrentPlan(nmsg As Long, msg() As String) As Boolean, but I don't understand components of this command. I really need your help.

Thank you indeed,

Quang.