Get return value of (static) function with no parameters C++

Question

I have the following function:

content::mojom::CreateViewParamsPtr content::mojom::CreateViewParams::New() {
  CreateViewParamsPtr rv;
  mojo::internal::StructHelper<CreateViewParams>::Initialize(&rv);
  return rv;
} 

How can I get the return value if the function is called in my Main function as follows or at least show that the return value exists?

int PatrickMainChrome(int argc, const char** argv)  {

content::mojom::CreateViewParams::New();

return 0;

}

Answer 1

content::mojom::CreateViewParamsPtr myViewPtr = content::mojom::CreateViewParams::New();
//or shorter
auto myViewPtr = content::mojom::CreateViewParams::New();

Answer 2

如果在主函数中调用了函数，如何获得返回值

auto rv = content::mojom::CreateViewParams::New();