Hi gurus,
I'm having data conversion (marshalling) problems with VB.NET DLL calling a old C DLL. The problem is that when the return type is a Long, I'm getting some garbage large number. eg. 921312343243543 or -3123904538
I've tried both Declare and DllImport but getting the same error. I've tried MarshalAs(Unman agedType.U8) but no help. Convert.UInt64 doesn't do it either.
This is really odd as return type of int and boolean seems to work just fine. And I can even pass in a Long data type.
I can't dive into the old C code, but it is know to be working from Lotus Notes.
Any help is appreciated!
Hui
1  1377 
No one's had a similar problem? Why do I always get the "weird" errors... ;(
Hui
"Hui" wrote: Hi gurus,
I'm having data conversion (marshalling) problems with VB.NET DLL calling a old C DLL. The problem is that when the return type is a Long, I'm getting some garbage large number. eg. 921312343243543 or -3123904538
I've tried both Declare and DllImport but getting the same error. I've tried MarshalAs(Unman agedType.U8) but no help. Convert.UInt64 doesn't do it either.
This is really odd as return type of int and boolean seems to work just fine. And I can even pass in a Long data type.
I can't dive into the old C code, but it is know to be working from Lotus Notes.
Any help is appreciated!
Hui This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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