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library linkages [message #55144]

Wed, 14 October 2020 05:31

umem
Messages: 7
Registered: October 2020

Promising Member

Using U++ how to link to a .lib, .dll in windows?. I was able to link to a windows win32 .dll using loadlibrary. How to link use .lib file?. Any such examples?.

[Updated on: Wed, 14 October 2020 05:31]

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Re: library linkages [message #55145 is a reply to message #55144]

Wed, 14 October 2020 06:26

Novo
Messages: 1431
Registered: December 2006

Ultimate Contributor

Take a look at menu Project -> Package Organizer.
You can put .lib files there.

Regards,
Novo

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Re: library linkages [message #55164 is a reply to message #55145]

Thu, 15 October 2020 05:27

umem
Messages: 7
Registered: October 2020

Promising Member

I am using the windows version. I was getting linkage error using the step you pointed out.
Could anyone explain it step by step how to Link a GUI app to win32 c++ .dll, .lib?. any examples?.

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Re: library linkages [message #55172 is a reply to message #55164]

Thu, 15 October 2020 17:50

Novo
Messages: 1431
Registered: December 2006

Ultimate Contributor

A hint: try to search for *.upp files containing string "library(WIN32)".
Examples:
uppsrc/MySql/MySql.upp
uppsrc/PostgreSQL/PostgreSQL.upp
examples/Synth/Synth.upp

Hope this helps.

Regards,
Novo

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Re: library linkages [message #55209 is a reply to message #55172]

Mon, 19 October 2020 01:30

umem
Messages: 7
Registered: October 2020

Promising Member

still having the same problem on the windows side.
Is there a book or pdf file that I can purchase or download that explains to detail steps on how to do these?.
If one has a small c++ lib+dll and an upp dialog app that calls it, I like to take a look.

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Re: library linkages [message #55211 is a reply to message #55209]

Mon, 19 October 2020 07:15

Novo
Messages: 1431
Registered: December 2006

Ultimate Contributor

Another hint: menu Setup -> Be verbose.
You will get complete command line.

Regards,
Novo

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Re: library linkages [message #55213 is a reply to message #55211]

Mon, 19 October 2020 12:35

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

Wrote this for you:

https://www.ultimatepp.org/app$ide$AddLib_en-us.html

Mirek

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Re: library linkages [message #55218 is a reply to message #55213]

Tue, 20 October 2020 07:32

umem
Messages: 7
Registered: October 2020

Promising Member

thanks for the link.
I followed the same steps , still the same issue. Used the verbose option. Got the idea and name mangling was the issue. Added extern "C" to the export, import and worked.
BTW, how to go the link you provided from the Tutorials?. I could not find it there.
thanks again.

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Re: library linkages [message #55220 is a reply to message #55218]

Tue, 20 October 2020 09:14

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

umem wrote on Tue, 20 October 2020 07:32

thanks for the link.
I followed the same steps , still the same issue. Used the verbose option. Got the idea and name mangling was the issue. Added extern "C" to the export, import and worked.

Cool! Moral of the story: Next time if you have the problem, please post more info, like errors you are getting or mabe screenshots or something.

We would tell you about extern "C" several days ago... Smile

Quote:

BTW, how to go the link you provided from the Tutorials?. I could not find it there.
thanks again.

You could not find it before because I have created that info just yesterday, exactly to answer your post... Smile

Mirek

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Re: library linkages [message #55243 is a reply to message #55213]

Thu, 22 October 2020 16:47

Klugier
Messages: 1118
Registered: September 2012
Location: Poland, Kraków

Senior Contributor

Hello,

If someone looks after Mirek's article it is now part of TheIDE begginers guide (Adding external library to your project).

Klugier

U++ - one framework to rule them all.

[Updated on: Thu, 22 October 2020 16:47]

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Re: library linkages [message #55244 is a reply to message #55243]

Thu, 22 October 2020 19:07

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

Klugier wrote on Thu, 22 October 2020 16:47

Hello,

If someone looks after Mirek's article it is now part of TheIDE begginers guide (Adding external library to your project).

Klugier

BTW, do we really need a table of content with single entry?! That's just noise.

Mirek

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