"Beginner" <Beginner@discussions.microsoft.com> wrote in message
news:67B0F820-A850-4548-883B-A59CE4E94177@microsoft.com...
> Hello,
> I got an error message that says, "An unhandled exception of type
> 'System.StackOverflowException' occurred in Porject1.exe", when I run the
> program upgraded from VB6. When the error occurs, the debugger is pointing
> at
> the following function;
>
> Public Function GetStatusData(ByVal hDev as integer, ByRef pStatus as
> STATUS_DATA) as Integer
> GetStatus = TestComunication(hDev, COM_STATUS, VariantType.Null, 0,
> pStatus,
> Len(pStatus))
> End Function
>
> The declaration of this function is
>
> Public Declare Function TestComunication Lib "TestDll" (ByVal hDev As
> Long,
> ByVal ComCode As Long, ByRef SendData As Long, ByVal SendDataNum As Long,
> ByRef ReceiveData As STATUS_DATA, ByVal ReceiveDataNum As Long) As Long
>
> By the way, this function is called from main every 40 ms. What do you
> think
> causes this error message?
>
> Thank you,
>
>
>