warning C4995 vs error C4995

Question

When I build a project (with VS2012) I get folowing output several times:

 warning C4995: \'DwmEnableComposition\': name was marked as #pragma deprecated
         


        

Answer 1

The problem is the DwmEnableComposition function. Is deprecated as of Windows 8.

When the compiler encounters a deprecated symbol like in this case, it issues C4995.

More info:

DwmEnableComposition function

Compiler Warning (level 3) C4995

Answer 2

You probably have 'SDL checks' enabled for the project where you get an error (under C/C++ -> General). It's an option in the 'new project' wizard. Remove that and it'll revert back to a warning.

Answer 3

I just confirmed this behavior in an existing project, in which I decided today to enable SDL checks in the unit test program for one of my C++ libraries. The function that flagged is one of my own that I marked as deprecated, but it has nothing to do with security, per se. So, I say that this begs the question; why is the compiler treating it as an error, when every other time I've used SDL checks that flagged such uses as swprintf, C4995 is a warning?