If simultaneous usage is not required then you could get in under the hood
and safely use the se methods to free the one DLL and Load the other. I
think there may need to be some precautions taken, but go ahead and play
around with it and see what happens. I'd like to know.

And, I am trying to get things so it will be possible to use an explicit
TIB_Session component that refers to the client it will make use of and the
library will be one of its properties.

Jason Wharton

----- Original Message -----
From: "Tom Munro Glass" <tom@...>
To: <ibobjects@yahoogroups.com>
Sent: Monday, November 17, 2003 1:47 PM
Subject: [IBO] Switching from FB embedded to normal FB client


> I have an application that needs to be able to use FB embedded to access a
local database or the normal FB client to access a remote database. It will
always be working in one mode or the other - it does not need to use both
methods simultaneously. The reason for the requirement is because FB server
will not be installed on the machine running the application.
>
> I see that in IB_Session.pas the two methods AcquireOriginalHooks and
ReleaseSessionHookRef are responsible for loading/unloading the FB DLL, the
filename being provided by IB_Constants.IB_GDS32.
>
> My question is how can I use these methods to switch FB DLLs? Would it be
safe to do the following:
>
> Before starting any database operations, set IB_Constants.IB_GDS32 to
point at the appropriate DLL then call AcquireOriginalHooks. On completion
of all database operations call ReleaseSessionHookRef.
>
> Tom Munro Glass
>