Import DLL in Microsoft Visual C++ 2010

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I have a only DLL named key generator.DLL, i need to use this DLL to call below function. I copied this DLL into my project folder and it has automatically generated key generator.h and key generator.cpp.

uint securityKey = 0;
securityKey = Key_Generator.KeyCalculator.EOLP_CalculateKeyFromSeed(securitySeed);

Where Key_Generator is a namespace,
KeyCalculator is a static method inside the DLL and
securitySeed is a seed(uint type) you pass into the DLL

Note:My project template folder has example.h and example.cpp to generate a DLL in microsoft visual C++ 2010, which works without any error.

Question:
1. In which file i need to declare this import function? How?
2. Which files i need to include and where?
3. Do i need any library?
2. Any project setting?

Thanks,
Han

Posted 15-Nov-11 18:21pm

hredekar

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RKnGl · Answer 1 · 2011-11-15T21:31:00

Solution 1

http://www.functionx.com/visualc/libraries/explicitdll.htm[^] works fine with MSVS , should help ya at least as an example ..

Posted 15-Nov-11 21:31pm

RKnGl

JackDingler · Answer 2 · 2011-11-16T03:32:00

Solution 2

If you're statically linking against this DLL, then you need to include the .lib file in your linker settings. When you build you DLL, it will automatically produce a .lib file.

Alternatively, you can use LoadLibrary(), though that's not the way your example is usually handled.

Posted 16-Nov-11 3:32am

JackDingler

Comments

Andrewpeter 24-Sep-12 1:04am

I think this is ActiveX dll... so not use LoadLibrary() function.

JackDingler 24-Sep-12 8:58am

You can dynamically load ActiveX DLLs, but there is a lot more pain involved...

Nghi Vinh Khanh · Answer 3 · 2012-09-23T18:54:00

Assume you have abc.dll only, and in your dll has a namespace TESTDLL and a Class named MyClass which has constructor as MyClass().
Now, in VC 2010 do:
- Click Properties on your project name -> Configuration Properties -> General -> set Common Language Runtime Support = Common Language Runtime Support(/clr) (recall: default is No) -> OK
- Click References on your project name -> Select Common Properties -> Add New References -> select Browser Tab -> select your abc.dll
- Now, you already use this dll.
- Next, in your code, to use class in the dll:
- using namespace TESTDLL
- declare the class from abc.dll
MyClass^ test;
test = gcnew MyClass();
// do something with the class

I test the dll which is created by C#.

Have fune!