check the screenshot, i honestly have no idea what's wrong with it

can anyone help me?

```
        if (strstr(pMaterial->GetTextureGroupName(), "World textures"))
        {
            pMaterial->ColorModulate(0.5, 0.5, 0.5);
        }

```

![screenshot](https://i.stack.imgur.com/Iie45.png)

1: C2665 'strstr': none of the 2 overloads could convert all the argument types

2: E0304 no instance of overloaded function "strstr" matches the argument list