giorget Posted August 28, 2007 Share Posted August 28, 2007 I'm using the interop dllimport to use the function Wingetstate inside my application. i'm using this line code: <DllImport("Autoitx3.dll")> _ Public Shared Function AU3_WinGetState(ByVal title As String, Optional ByVal text As String = "") As Long End Function When i try to call the function by using try -catch cycle , i receive an error Argument 'start' is nothing. COuld you help me regarding that?? Thanks for support Link to comment Share on other sites More sharing options...
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