On 10/19/2015 4:20 PM, Carsten Bager wrote:
The function system.CreateFile sometimes return a negative value (LongInt) 
under Win CE
when used together with COM ports.
When I typecast to LongWord everything works.
Is it ment to be that way.

Of course a negative value of type LongInt becomes positive value when type casted to LongWord.
You need to inspect GetLastError to find out why CreateFile fails.

Yury.
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