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Article #1649

Re: TADOConnection and Win2000 Services

#1649
From: Viatcheslav V. Vassiliev
Date: Sat, 06 Mar 2004 11:07
47 lines
2850 bytes
> Is it possible to use a TADOConnection object in a Windows2000 service?
> Is it possible to set the connection paramenters at run-time?

Yes, it is possible

> Is there some specific code needed to set the "ConnectionString" property
at runtime other then assigning an "AnsiString" string to the "WideString"?

No.

> Is it really a need to use the CoInitialize() function? and why?

Yes, this function initializes COM in application or service. ADO is
COM-based so COM must be initialized before using ADO.

> If TADOConnection is a VCL object, why is it allowed to be used in a
Service?

Why not? Anyway Windows has no methods to determine is some code VCL object
or no - Windows knows nothing about VCL.

//------------------------------------------
Regards,
Vassiliev V. V.
http://www.managed-vcl.com - using .Net objects in Delphi for Win32 +
ADO.Net
http://www.oledbdirect.com - The fastest way to access MS SQL Server,
MS Jet (Access) and Interbase (through OLEDB)


"Cesare" <cquarinto@shaw.ca> �������/�������� � �������� ���������:
news:4048f9f2$1@newsgroups.borland.com...
>
> Hi,
> I aplogize in advance for these questions, I am not a "professional".
> Is it possible to use a TADOConnection object in a Windows2000 service?
> Is it possible to set the connection paramenters at run-time?
> Is there some specific code needed to set the "ConnectionString" property
at runtime other then assigning an "AnsiString" string to the "WideString"?
> Is it really a need to use the CoInitialize() function? and why?
> If TADOConnection is a VCL object, why is it allowed to be used in a
Service?
>
> Thanks
> Cesare
>
>
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Subject: Re: TADOConnection and Win2000 Services
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