VB.net 是2005版
我的動作是想要透過Extension Board得到外部訊號後去trigger camera，訊號線是接在pin 9 (37-pin)
Dim cwimaq1 As New CWIMAQ
Private Sub Run_Click()
Dim signal As CWIMAQSignal
' Add a signal
signal = cwimaq1 .Signals.Add
' Wait for a trigger before capturing each image
' after first three triggers on RTSI 0.
signal.Action = cwimaqCaptureEveryImage
signal.Line = cwimaqIsoIn
signal.Polarity = cwimaqActiveHigh
signal.LineNumber = 9
End Sub
我使用上述範例程式卻在signal = cwimaq1 .Signals.Add 這行出錯
錯誤是"災難性的失敗 (發生例外狀況於 HRESULT: 0x8000FFFF (E_UNEXPECTED))"
可是我找不出原因在哪？希望在這的各位前輩能幫忙
