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Accessing DLLs in multiple directories

Posted on 2004-10-06
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Last Modified: 2010-04-16
Hi, am writing a program using PVCS and PVCS tracker DLLS to attempt to coordinate tracker associated files with their status in PVCS.  the program needs to load the TRKTooln.dll for tracker, and vmwfdk.dll for pvcs.  These DLLs are in their respective program directories, and call other libraries.

I would like to have my program call these DLLS, and have the DLLS be able to call their respective libraries, even though they are in different directories.  Ideally, I would be able to specify the path each DLL is to search as program options, so that the thing could continue to work ,regardless of network drive mapping.

So, how can I tell me program where to go to call these DLLS, and then tell the DLLs where to search to call the libraries that they need?

If it helps, I can call the tracker DLLs first, save information, close my links to tracker, and then call PVCS.

Thanks!
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Question by:mitcht
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4 Comments
 
LVL 6

Expert Comment

by:vadim_ti
ID: 12241319
hi,
you simple have to add path to your dlls to path environment variable
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LVL 6

Expert Comment

by:vadim_ti
ID: 12241431
if you use LoadLibrary function you can save path to your DLL in ini file or registry and retrieve it
before calling LoadLibrary
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Author Comment

by:mitcht
ID: 12242705
OK, I must be really vapor locked, how do I (temporarily) alter the search path?
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Accepted Solution

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vadim_ti earned 125 total points
ID: 12242890
if you do not use  dinamic linking (LoadLibrary / FreeLibrary) you cannot change path from your code
you will get exception before you can do anything.
so you will need to change path with windows tools, before execution of your application
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