linker errors trying to use toolbox.h (toolbox.fp) on a realtime target

[Adam J D]

Hi,

I'm writing an application (OK technically a DLL but whatever) to run on a CVI Realtime controller.

I want to use both the list functionality (ListCreate, etc.) from toolbox.h and the ini file functions (Ini_New, etc.) from inifile.h.

I've added toolbox.fp and inifile.fp to my library list using: Customise Library Menu -> browse, but when I hit Run or Build -> Create Debuggable DLL I get 130 odd link errors. Here's a few examples:

 Undefined symbol '_MenuIsOpen' referenced in "toolbox.obj".
 Undefined symbol '_GlobalMemoryStatus@4' referenced in "toolbox.obj".
 Undefined symbol '_GetComputerNameA@8' referenced in "toolbox.obj".
 Undefined symbol '_GetUserNameA@8' referenced in "toolbox.obj".
 Undefined symbol '_GetVersionExA@4' referenced in "toolbox.obj".
 Undefined symbol '_DeleteDC@4' referenced in "toolbox.obj".
 Undefined symbol '_DeleteObject@4' referenced in "toolbox.obj".
 Undefined symbol '_GetDIBits@28' referenced in "toolbox.obj".
 Undefined symbol '_DefWindowProcA@16' referenced in "toolbox.obj".
 Undefined symbol '_CallWindowProcA@20' referenced in "toolbox.obj".
 Undefined symbol '_GetKeyboardType@4' referenced in "toolbox.obj".
 Undefined symbol '_CreatePopupMenu@0' referenced in "toolbox.obj".
 Undefined symbol '_DestroyMenu@4' referenced in "toolbox.obj".
 Undefined symbol '_GetMenuItemCount@4' referenced in "toolbox.obj".
 Undefined symbol '_TrackPopupMenu@28' referenced in "toolbox.obj".
 Undefined symbol '_InsertMenuItemA@16' referenced in "toolbox.obj".
 Undefined symbol '_GetMenuItemInfoA@16' referenced in "toolbox.obj".
 Undefined symbol '_SetMenuItemInfoA@16' referenced in "toolbox.obj".
 Undefined symbol '_GetMenuDefaultItem@12' referenced in "toolbox.obj".
 ...

Can anyone tell me where I'm going wrong with this please?

Thanks.

Adam.

[Wolfgang]

well, this adds the library, but you will need to add the include file to the source code, too, i.e.

#include <inifile.h>

[Adam J D]

I can be pretty stupid sometimes but I did remember to add the #include <inifile.h> line to my code.

CVI automatically added #include "toolbox.h" to all of the files I use ListType in.

[Wolfgang]

sorry..., but you didn't mention in your post that you did include the ini file, so we had to guess. This was the simplest guess 🙂

[LuisG]

Hi Adam,

Unfortunately, the Programmer's Toolbox isn't yet supported in CVI Real-Time. I'm sorry that you didn't get a more informative message than simply a bunch of link errors.

However, off the top of my head, I can't think of any reason why the functions you want to use (ListCreate, etc...) couldn't work. Therefore, a possible workaround, although a bit messy, would be for you to copy and paste only the functions that you need to use from toolbox.c into your own souce code.

Luis

[Adam J D]

Thanks for the reply Luis.

Not the answer I was hoping for but I had a suspision it might be the case. Could really do with NI sorting this out. It's a bit of a let down that CVI Real-Time is not as polished as it first looked.

In the mean time I think I shall do as you suggest and see how easy it is to copy the functions I want without all the other fluf coming with it.

Adam

[KavehV]

---

LuisG wrote:

Hi Adam,

Unfortunately, the Programmer's Toolbox isn't yet supported in CVI Real-Time. I'm sorry that you didn't get a more informative message than simply a bunch of link errors.

However, off the top of my head, I can't think of any reason why the functions you want to use (ListCreate, etc...) couldn't work. Therefore, a possible workaround, although a bit messy, would be for you to copy and paste only the functions that you need to use from toolbox.c into your own souce code.

Luis

---

Is this ever planned to be supported by CVI Real-Time?  I figured that by using NI's own libraries that I was safe to port my code to real-time but am frustrated to find out that isn't the case.

[LuisG]

Porting the toolbox to real-time is something that has been being discussed for a while,  but so far we haven't yet been able to fit it into our schedule. The reason it hasn't received as high a priority is because it's not a standard CVI library, and because it's open source, thus enabling programmers to just grab the pieces that they need.

However, both of you make a good point about the completeness of the real-time module. The distinction between standard CVI libraries and other libraries is increasingly blurry, so this is becoming somewhat of a spurious distinction. And since we are receiving specific requests for this, we'll definitely go ahead and raise the priority.

Luis

[Adam J D]

Well I ripped the toolbox files apart and produced a set of stand alone List functions that suited my purposes. Not fully tested by any means but seem to work so far.

[Adam J D]

I did the same for the Ini file functions. These need the List files.