I need to use cvi device drivers in VC++

[zeino]

I need to use the Labwindows/CVI driver in VC++. It give me unresolved linker error. I built a lib file using Measurement Studio but it seems the CVI files was not included. but when trying, What libraries I should include in my Visual Studio

1>MHD_hp859xe.lib(hp859xe_mhd.obj) : error LNK2001: unresolved external symbol _Scan

1>MHD_hp859xe.lib(hp859xe_mhd.obj) : error LNK2001: unresolved external symbol _CVI_OpenFile@16

1>MHD_hp859xe.lib(hp859xe_mhd.obj) : error LNK2001: unresolved external symbol _CVI_CloseFile@4

1>MHD_hp859xe.lib(hp859xe_mhd.obj) : error LNK2001: unresolved external symbol _ScanFile

1>MHD_hp859xe.lib(hp859xe_mhd.obj) : error LNK2001: unresolved external symbol _Fmt

1>MHD_hp859xe.lib(hp859xe_mhd.obj) : error LNK2001: unresolved external symbol _FmtFile

1>MHD_hp859xe.lib(hp859xe_mhd.obj) : error LNK2001: unresolved external symbol _NumFmtdBytes@

[zeino]

Thanks to this excellent forum I found some part of the answer.

I added  

#pragma comment(lib, "cvirt.lib")

to my project and it compiled with no linker error.  I basically downloaded the evaluation version of CVI/Labwindows and Measurement Studio and compiled the hp859xe driver by typecasting the code when necessary and removing minor issues. I then built a lib file and tried to use it my program.  My Question is:

Would I be able to use this compiled library, independant of the CVI/Labwindows? I mean, if my trial period expires is there anything that will prevent my code from running. we may not buy the developer Suite for a while and I wish to know if the cvi libraries can be used like this independently from the package? Is there a  runtime library running behind the scene which I am not aware of like .Net  ...?  I haven't tested the code but at least it compiles fine.

I wish to know if the method above is sufficient in building a device driver from CVI files and using it in my VC++ program without having CVI/Labwindows or Measurement Studio.

[EadieU · Accepted solution]

The LabWindows/CVI Evaluation Version Limitations addresses your questions.  Further details are available in the LabWindows/CVI Evaluation Guide.

[zeino]

Thanks Mark. 

I had to change the driver and remove all CVI dependencies. CVI functions are very efficient code and very impressive but I couldn't afford initializing the CVI RT and installing runtime library.