How to enable _CRT_SECURE_NO_WARNINGS to avoid ms warnings?

[tonnot]

I have "#define _CRT_SECURE_NO_WARNINGS" at the top of my header file, but it seems to be unusefull, I keep on viewing warnings.
What I'm doing bad ?
Thanks

[cincirin]

The best solution is to put it in project preprocessor defines.

[tonnot]

Thanks cin