[Openroad-users] WindowsAPI call to GetLocalTime

[Fabian Anderson]

Hi Gareth,

            Where an API specifies a STRUCT as a parameter, you should
be able to declare a LongByteObject to pass to the API.  Upon return,
you should have a binary string containing the structure.  It is most
useful when you have to pass a structure returned from one API call into
another API call.  If you have to process the returned binary string to
something meaningful, you need a function to strip out the Nth byte of
the array to get the required byte value.  NB: the .Value attribute
produces a VARCHAR representation of the string.  It is handy to create
a utility class to handle binary masking and bit masks with this
approach.

 

No-one has indicated if packaging other DLLs with eClient is viable.
This would be the preferred approach for me.  i.e. Create a new 3GL
library that calls the API and returns data in simple parameters.
Microsoft Visual C++ toolkit is a free Windows compiler you can use to
do this.

 

Regards,

Fabian.

 

 

________________________________

From: openroad-users-bounces at peerlessit.com
[mailto:openroad-users-bounces at peerlessit.com] On Behalf Of
gareth.2.edwards at bt.com
Sent: Wednesday, 23 April 2008 12:38 AM
To: openroad-users at peerlessit.com
Subject: Re: [Openroad-users] WindowsAPI call to GetLocalTime

 

 >Sorry I haven't used this API before, but you should be able to get it
working via the LongByteObject (which I believe is mapped to a BSTR for
3GL calls) 

 

I'd be interested to know how this approach works. Could you explain
further Fabian please. 


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