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I need help on a part from the open GL book

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Hey guys, I just bought the open GL book and I managed to compile the code, but it wont link and form an executable. Here''s the code: #define WIN32_LEAN_AND_MEAN //Trim Libraries #include //main Windows headers //the main entry point to your program int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdline, int nShowCmd) { //Show a very simple message box with the text "Hello world!" displayed MessageBox(NULL, "\tHello, world!", "My First Windows Application", NULL); return 0; } The error when linking to an exe is: Linking... LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main Debug/oi.exe : fatal error LNK1120: 1 unresolved externals Error executing link.exe. oi.exe - 2 error(s), 0 warning(s) This code is from the Open GL Game Programming book.

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