Converting C++ header files to use in LabWindows

[bloodam]

Hello,

I am trying to develop a program with LabWindows to process images from a camera, using Common Vision Blox, a C++ software developped by Stemmer Imaging.

There is no Labwindows driver for this software but they told me it was possible to use all the dll functions as Labwindows is a Ansi C compiler. 

 However as it is "only" a Ansi C compiler, I cannot use the provided header files directly and I have to adjust them.

It seems that there are only some minor changes to do but I have no clue

Can someone help me to convert them ?

I would be very pleased.

Below is the kind of thing I have but not only:

message=

"iCVCImg.h"(357,108)   syntax error; found '&' expecting ')'.

the line 357:

  IMPORT(void)                    SetRectArea               ( double L, double T, double R, double B, TArea& Area );

Thanks a lot

damien

[Han]

Hi !

I just passed a C++ exam a couple of months ago...The '&' is the problem because that is a 'reference' in C++ and that does not exist in C, but this is just slightly different to 'call by reference' in C. I suggest you try to change the line in the header file:

IMPORT(void)                    SetRectArea               ( double L, double T, double R, double B, TArea& Area );

to

IMPORT(void)                    SetRectArea               ( double L, double T, double R, double B, TArea *Area );

but I can't give guarantees...

[bloodam]

Hi Han,

Thanks a lot for your suggestion...indeed it works !!

it was long to do but simple and now the program is Pk with these header files.
I still had to remove some parts where other problems arise but it seems that it does not care for the moment.

If I have other problems I will surely contact you !! 🙂

Hope you had a good mark at your exam at least!

Thank you

all the best

Damien

[Han]

Good to hear this worked for you ! But make sure you test it thoroughly.