Macro definition at runtime

[Jessica]

Hi,

I'd like to define macros used in #ifdefs statements at runtime (environment variables) instead of compilation time. Is there a way to do that in Qt?

Thanks

[SGaist]

Hi and welcome to devnet,

If you want to use environment variables content in your code take a look at qgetenv otherwise no, macros are pre-processed at build time (nothing Qt specific here it's how C/C++ works)

[Pablo J. Rogina]

@Jessica Do you mean reading environment variables at runtime and acting accordingly in your code? If so, I guess you may want to take a look at qgetenv function.

[Jessica]

Thank you guys,

qgetenv worked :)

[Pablo J. Rogina]

@Jessica you're welcomed. Please don't forget to mark the post as solved.