Thread: Put WinMain in DLL which then calls MyMain() in exe project

Hello,

Let's say I have an executable and a DLL. The executable uses the DLL. What I'm trying to achieve is to encapsulate the WinMain Method, like this:

Code:

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
	// Do some other code here before Main()
	Main();
	return 0;
}

Note, I want the WinMain to be inside the DLL, but the "void Main()" to be inside the executable. The WinMain (inside the DLL) then calls the Main method inside the exe project.

Why?
Simply to encapsulate it and execute additional code. I know this can be done. SDL does this, but reading its code is like reading the description of Chinese noodle soup, seriously

This is a VERY minimal code example, which demonstrates my attempt. It is not compile-able and I'm hoping that someone can tell me what I'm doing wrong.

http://dev-ch.com/files/5629e88b-874...mymaintest.zip

Greetings

Originally Posted by jimblumberg

The function main() can not be inside your .DLL therefore WinMain can not be inside your DLL.

But how does SDL encapsulate main() ? I know that SDL does this, but I just can't figure out how...

Originally Posted by jimblumberg

Also note C/C++ is case sensitive Main() is not the same as main(). And the function main must be defined to return an int, int main().

I know. I called it like this so it will not be in conflict with the "true" main function and because I prefer upper camel case casing for function names.

O_o

With special emphasis on "very poor practice indeed" if you please.

Soma

I don't think this is poor practice. It simplifies a lot to the user of the DLL.

What do you think I should do instead?

Originally Posted by stahta01

Its the MACRO magic I consider poor design

That's why I don't call it "int main", but "void Main". Is this still poor design?

Anyway, I still didn't manage to get this to work with the code you posted. What am I doing wrong?

What am I doing wrong?

Trying to "hide" main.

Just live with the fact that every C++ program must contain a function called main() that is in the global namespace.

Jim