Keep getting the Warning 4996, even after defining _CRT_SECURE_NO_WARNINGS - c++

Question

Hi I'm been struggling to get my preprocessor to quit bugging me about this:
So I added _CRT_SECURE_NO_WARNINGS in the C/C++ -> preprocessor -> definitions
But it still said the same, so I defined it below as shown in the code below.
though it didnt work. It is shown in output as an error though and not a warning. Is there anything else I should do?
#include "texture.h"
#include <iostream>
#define _CRT_SECURE_NO_WARNINGS
#include "stb_image.h"
#define STB_IMAGE_IMPLEMENTATION
Texture::Texture(const std::string& fileName)
{
int width, height, numComponents;
unsigned char* data = stbi_load((fileName).c_str(), &width, &height,
&numComponents, 4);
//rest isnt really neccesary i guess

Answer 1

You need to put #define _CRT_SECURE_NO_WARNINGS at the very beginning of the program:
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
int main()
{
FILE *f = fopen("a", "r");
}
But following compiles with the warning because #define _CRT_SECURE_NO_WARNINGS comes after #include <iostream>:
#include <iostream>
#define _CRT_SECURE_NO_WARNINGS
int main()
{
FILE *f = fopen("a", "r");
}
The same for #pragma warning(disable: 4996), you need to put it at the beginning of the program (or at least before #include <iostream>)

Answer 2

Consider using
#pragma warning(disable: 4996)
instead.

Answer 3

Do not define _CRT_SECURE_NO_WARNINGS or other warning suppressions, it is a workaround that is supposed to be used when upgrading code not yet utilizing security enhancements in CRT. Fix the code that is causing them.