Mingw linking problem

[Elidor]

Hello, I'm having a problem running the MSDN's Learn to program windows module 1 program. It would seem the problematic part is the function signature.

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR pCmdLine, int nCmdShow)

I can get this program to run from command prompt if I use the following command:

g++ Window.cpp -mwindows -o Windows.exe'

with the following function signature change:

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR pCmdLine, int nCmdShow)

My question is why do I get an undefined reference to 'WinMain@16' when I use the one in the tutorial. I thought this just allowed a larger range of unicode? If someone could possibly tell me how to get the original code to run for mingw compiler that would be great.

[Ogoyant]

EDIT: This may have to do with #defining UNICODE but I posted this reply in haste, prior to making sure. Take a look at this:

http://msdn.microsoft.com/en-us/library/windows/desktop/ff381407%28v=vs.85%29.aspx

[Elidor]

Sorry I forgot to add the fact that I did add:
#ifndef UNICODE
#define UNICODE
#endif

to the top of the program.

[Ogoyant]

Yes, shortly after posting I realized that this is probably not the issue myself, hence my sybsequent edit, sorry for my hasty reply.

[modoran]

MinGW does not support wWinMain entry point (also wmain does not work in MinGW), this is a known issue. Use WinMain even for Unicode programs.

Rebent versions of MinGW has added -municode switch, try it and see what happens.