How to using Dynamic-Link Library (in *.dll) Functions

Question

1.00/5 (1 vote)

See more:

I'm using a libraries of 3rd party.
But there's have Dll file only (not have lib file).
How to using it for my project ?
I'm using C++ Application in Visual studio 2008

ps: I'm speak english not well. hi!

Posted 4-Nov-13 14:36pm

Mạnh Lê

Updated 4-Nov-13 15:41pm

v3

Add a Solution

Comments

Sergey Alexandrovich Kryukov 4-Nov-13 21:18pm

Do you have documentation for the library?
—SA

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Accepted Answer · 2013-11-04T15:20:00

Solution 1

Ideally, you should have exact documentation on what do you have in the DLL file, the list of exact signatures of all exported functions. Even more ideally, you should better have the source code for the DLL you want to use.

If you don't have either, you can use some utility like "dumpbin.exe": http://msdn.microsoft.com/en-us/library/c1h23y6c%28v=vs.110%29.aspx[^].

Even if you have documentation, it could be useful to get the exact names of function, but if you don't… If you are lucky, you can guess signatures of the functions by their mangled names: http://en.wikipedia.org/wiki/Name_mangling[^].

If you have all the information, consuming DLLs in C++ is really simple. Please start here:
http://msdn.microsoft.com/en-us/library/vstudio/1ez7dh12.aspx[^],
http://msdn.microsoft.com/en-us/library/vstudio/ms235636.aspx[^].

—SA

Posted 4-Nov-13 15:20pm

Sergey Alexandrovich Kryukov

Comments

Mạnh Lê 4-Nov-13 21:37pm

I did to read 2 link of you in your answer
But there are to creat a Dll library.
Of me, using a esixt Dll library

http://www.mediafire.com/download/5rzrh16rh2w300x/PCP21CT.rar

Sergey Alexandrovich Kryukov 4-Nov-13 21:53pm

I know. I cannot edit to Web pages and separate information on using the DLLs from information of creation of them. :-)

Don't be so lazy, read it all. Everything is explained in detail. And you didn't answer my question: do you have documentation?

—SA

Mạnh Lê 4-Nov-13 21:57pm

I did to reading and finding, but not have a way to loading the library
My doccument in the link in above comment of me

http://www.mediafire.com/download/5rzrh16rh2w300x/PCP21CT.rar

Sergey Alexandrovich Kryukov 4-Nov-13 22:37pm

Sorry, nobody will take executable modules from who-knows-where. Read more carefully. DLLs can be loaded dynamically via LoadLibrary, or "statically" (yes, "Dynamic Load Library" loaded statically sounds weird, but terminology is just ugly). Statically, your executable module just prescribe the names of the DLL and functions as "imported". Read about DLL import:
http://msdn.microsoft.com/en-us/library/3y1sfaz2%28v=vs.110%29.aspx.
This is what you need.
—SA

Mạnh Lê 4-Nov-13 22:59pm

Thank for this reply !

Sergey Alexandrovich Kryukov 5-Nov-13 0:29am

Sure. Will you accept the answer formally (green "Accept" button)?
—SA

Mạnh Lê · Accepted Answer · 2013-11-04T15:28:00

Solution 2

Thank for there anser for my question

This is my Dll file (x86 and x64 OS) and the SDK guide[^]

I don't find where to attach a file to codeproject

Posted 4-Nov-13 15:28pm

Mạnh Lê

Mạnh Lê · Accepted Answer · 2013-11-12T14:07:00

Solution 3

I using this command to get lib file from Dll file.
But there have only function name and its Address, don't have any argument and how to using there to my project

dumpbin /OUT:PCP21CT.def /exports PCP21CT.DLL

lib /def:PCP21CT.def /OUT:PCP21CT.lib

Posted 12-Nov-13 14:07pm

Mạnh Lê