Toolkit Pro - using zlib

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using zlib

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Forum Name: Toolkit Pro
Forum Description: Topics Related to Codejock Toolkit Pro
URL: http://forum.codejock.com/forum_posts.asp?TID=4839
Printed Date: 07 June 2025 at 11:14am
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Topic: using zlib

Posted By: Marcus
Subject: using zlib
Date Posted: 20 August 2006 at 3:11pm

Hi! Now that zlib is part of the ToolKit, I would like to use it in my application too. When I link MFC and XTP statically, zlib functions like compress() uncompress() can easiely be called without any problem. But when linking MFC/XTP dynamically, I get an "error LNK2019: unresolved external symbol " Could somebody give me a hint on how to call the functions in the dll?

Replies:

Posted By: Oleg
Date Posted: 20 August 2006 at 7:46pm

From dll exported only functions that marked with _XTP_EXT_CLASS

you can manually add some function in some .h file

_XTP_EXT_CLASS void ZLibCompress(..)
{

compress(...);

}

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: larryp
Date Posted: 01 April 2008 at 5:19pm

I have the same question but I cannot get Oleg's suggestion to work.

For the following function:

_XTP_EXT_CLASS int ZLibCompress( Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)

{

return compress( dest, destLen, source, sourceLen);

}

I get the following:

error C2491: 'ZLibCompress' : definition of dllimport function not allowed

Posted By: Oleg
Date Posted: 02 April 2008 at 1:26am

Hi,

but do you add it to our sources ?

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS