Error with book or compiler?

I've recently started to try and code windows programs but there's something wrong...

When I try to run the program, I get the following error:

Error: a.cpp(24,24):Cannot convert 'long (__stdcall *)(void *,unsigned int,unsigned short,long)' to 'long (__stdcall *)(void *,unsigned int,unsigned int,long)'

I then commented out the "problem" line and tried to run it again only to get another eror:

Error: Error: Unresolved external '_main' referenced from D:\APPS\PROGRAMMING\BC5\LIB\C0X32.OBJ

I don't know if the problem lies with the compiler or if the book is wrong. I copied the example exactly out of the book : Turbo C/C++ the complete reference second edition.

here's my source if you guys want to take a look

Code:

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long far pascal WindowFunc(HWND hwnd, WORD message, WORD wParam,long lParam)

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This is old....try this instead

Code:

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LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)

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