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Dll question

Posted on 2003-11-12
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Last Modified: 2010-04-01
I want to make a little program which uses a dll, but only if the dll is available. If the dll isn't available, the program should give just a messagebox.

I tried it, but it doesn't works when the dll isn't available (it gives an error which says that the dll can't be found, which is normal).
How can this be done ???
Thanks.
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Question by:teuntje
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Dexstar earned 300 total points
ID: 9735135
teuntje:

> I want to make a little program which uses a dll, but only if the dll is
> available. If the dll isn't available, the program should give just a messagebox.

> I tried it, but it doesn't works when the dll isn't available (it gives an
> error which says that the dll can't be found, which is normal).
> How can this be done ???

If you are using the DLL via a .lib file, then that is the behavior that you are going to get.  If you want to handle a missing DLL differently, then you will have to use the Win32 APIs.

First call "LoadLibrary" and if that fails, then the DLL is missing.  Then you can call "GetProcAddress" to get the address of the function.

It is more work, but it is nicer on your users.

Hope that helps,
Dex*
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by:teuntje
ID: 9735307
thanks. works now.
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