Visual Studio C++ warning C4829: Possibly incorrect parameters to function main.

[DeepH2O]

It has been a very long time since I wrote C++. I have the latest VS 2022 community installed. When I do my build, I get the warning "warning C4829: Possibly incorrect parameters to function main. Consider 'int main(Platform::Array<Platform::String^>^ argv)'"

This is the main function definition.

void main(array<String^>^ args) {
}

When I try to replace the arguments with the suggestion it will generate a bunch of errors. I don't see Platform in the intellisence, which I think is causing the cascade of errors so I'm a little confused.

[George P]

main's parameters in C++ are as follows, you can't change them.

int main()
int main(int argc, char *argv[])

https://docs.microsoft.com/en-us/cpp/cpp/main-function-command-line-args?view=msvc-170

Occasionally you might see int main(int argc, char **argv), its just a different way to do a 2D C string array.

The names argc and argv are traditional, but you can name them whatever you like.

In C++ main returns int, it is never void.

In C++ main

Can't be overloaded.
Can't be declared as inline.
Can't be declared as static.
Can't have its address taken.
Can't be called from your program.

[Ganado]

It seems like Visual Studio's default settings are trying to encourage you use C++/CLI, which is Microsoft's extension of the C++ language to work with ".NET".

If you don't know what that means, then you probably don't need it, and should just focus on standard C++:

(1) Create a new project --> Language: C++ --> Empty Project, "Start from scratch with C++ for Windows. Provides no starting files." Not "CLR Empty Project (.NET Framework)".
(2) Right-click project after it loads --> Add --> New Item... --> C++ File (.cpp) --> name it --> Add
(3) Write code

#include <iostream>

int main()
{
    std::cout << "Hello, world!\n";
}

[DeepH2O]

Thanks for the responses. Like I said it has been a long time since I used VS. I would normally use argc & argv, but since they implemented this management of objects and such in the 2022 version it threw me for a loop. I will spend time learning this new version and see if I can get back to using it again quickly.

@Ganado - I did the create an empty project and it does compile successfully. I do need to use Forms so I changed it to a Windows project by setting the Properties -> Linker -> System -> SubSystem to Windows. But I still don't see the form object. Is there something else I need to set to include that?