Member Avatar for bejfake

Hi,

I need to link a library you can download from producer's site (http://www.dahuasecurity.com/download_3.html) to my c++ project. The library is named General_NetSDK_Eng_Windows64_IS_V3.40.2.R.130321.7z. I tried to:

  • Linker->Input : added to addidiontal dependencies lines:

    dhnetsdk.lib
    dhconfigsdk.lib

  • Linked->General : added to additional library directories a "D:\dahua\" directory which includes files dhnetsdk.lib, dhnetsdk.dll, dhnetsdk.h and dhconfigsdk.lib, dhconfigsdk.dll

  • C/C++->General : added to additional include directories a "D:\dahua\" directory

I included files by directive #include : dhnetsdk.h and dhconfigsdk.h. I also copied all library files (.lib, .dll, .h) to my application source code direcotry and debug directory.

Unfortunately I still get errors LNK2019 and LNK1120. What am I doing wrong?

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  • Latest Post Latest Post by bejfake
Member Avatar for Ancient Dragon

You might have that problem if the library was built a C code and your program is attempting to call it's functions as C++ code. If that is the case then you need to tell the compiler that the library is C and not C++.

#ifdef __cplusplus
extern "C" {
#endif
#include "dhnetsdk.h"
#ifdef __cplusplus
}
#endif
Edited by Ancient Dragon
Member Avatar for bejfake

Your solution doesn't work, still LNK2019 and LNK1120

Edited by bejfake
Member Avatar for nullptr

What compiler are you using? Are you building it as Win64?

Edited by nullptr
Member Avatar for bejfake

I forgot to write here. I solved this problem, you are right - it was problem with architecture. I had to build as Win64. I worked it out myself, but anyway thank you.

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