问题
When I build a project (with VS2012) I get folowing output several times:
warning C4995: 'DwmEnableComposition': name was marked as #pragma deprecated
When I copy the projects sourcefiles into another project (and different solution) I get errors instead of warnings (and the build does not succeed):
error C4995: 'DwmEnableComposition': name was marked as #pragma deprecated
Is there anything I can do that I get warnings instead of errors?
That is the project I am running (it's not my own code): http://federico-mammano.github.io/Oculus-SDK-0.4.4-beta-OpenGL-Demo/ (the OpenGL example)
回答1:
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.
回答2:
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
回答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?
来源：https://stackoverflow.com/questions/28001687/warning-c4995-vs-error-c4995