Problems with formatting text.

I am making a rather large windows program written in the basic Win32 API with C/C++. I want to have a short paragraph explaing the program and some basic legal stuff on the opening window. In order to do this I went to my trusty old bookcase, pulled out "Programming Windows" by Charles Petzold. He has a program in chapter 17 called "Justify" that I could modify to my own needs. I read the code and his explanation and everything seemed to make sense. I tried to implement(direct copy and paste out of the included e-book) and got 71 errors. I fixed alot of of them by re-typing the ' and the -> symbols for some reason. I am now getting 16 errors which make no sense at all. First a copy of my code

Code:

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#include "StdAfx.h"

void Justify (HDC hdc, PTSTR pText, RECT *prc, int iAlign)
{
        int xStart, yStart, cSpaceChars ;
        PTSTR pBegin, pEnd ;
        SIZE size ;
       
        yStart = prc->top ;
        do // for each text line
        {
                cSpaceChars = 0 ; // initialize number of spaces in line
                while (*pText == '\0') // skip over leading spaces
                        pText++ ;
                pBegin = pText ; // set pointer to char at beginning of line
                do // until the line is known
                {
                        pEnd = pText ; // set pointer to char at end of line
                        // skip to next space
                        while (*pText != '\0' && *pText++ != '\0') ;
                                if (*pText == '\0')
                                        break ;
                        // after each space encountered, calculate extents
                        cSpaceChars++ ;
                        GetTextExtentPoint32(hdc, pBegin, pText - pBegin - 1, &size) ;
                }
                while (size.cx < (prc->right − prc->left)){
                cSpaceChars−− ; // discount last space at end of line
                }
                while (*(pEnd − 1) == ' ') // eliminate trailing spaces
                {
                        pEnd−− ;
                        cSpaceChars−− ;
                }
                // if end of text and no space characters, set pEnd to end
                if (*pText == '\0' || cSpaceChars <= 0){
                        pEnd = pText ;
                }
                GetTextExtentPoint32 (hdc, pBegin, pEnd − pBegin, &size) ;
                switch (iAlign) // use alignment for xStart
                {
                case IDM_ALIGN_CENTER:
                        xStart = (prc->right + prc->left − size.cx) / 2 ;
                        break ;
                }
                // display the text
                TextOut (hdc, xStart, yStart, pBegin, pEnd - pBegin) ;
                // prepare for next line
                SetTextJustification (hdc, 0, 0) ;
                yStart += size.cy ;
                pText = pEnd ;
        }
        while (*pText && yStart < prc->bottom - size.cy) ;
}

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Here is a list of errors I am getting

Code:

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c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(27) : error C2146: syntax error : missing ')' before identifier '−'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(27) : error C2059: syntax error : ')'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(27) : error C2143: syntax error : missing ';' before '{'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(28) : error C2065: 'cSpaceChars−−' : undeclared identifier
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(30) : error C2146: syntax error : missing ')' before identifier '−'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(30) : error C2059: syntax error : ')'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(31) : error C2143: syntax error : missing ';' before '{'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(32) : error C2065: 'pEnd−−' : undeclared identifier
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(39) : error C2146: syntax error : missing ')' before identifier '−'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(39) : error C2660: 'GetTextExtentPoint32W' : function does not take 3 arguments
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(39) : error C2059: syntax error : ')'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(43) : error C2146: syntax error : missing ')' before identifier '−'
c:\documents and settings\administrator\my documents\my projects\dosage\justify.cpp(43) : error C2059: syntax error : ')'

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All of these errors seem to be caused by the use of - I have tried to re-type them and nothing(side question why does re-typing stuff matter?). Can anyone help? I am using Visual Studio 2005 Professional.

Thank you very much.

> while (size.cx < (prc->right − prc->left))
Well this while looks like it's trying to belong to the 'do' about 10 lines before it, AND the 'cSpaceChars−−' which follows it.

A couple of blank lines between control structures (like indentation) sure helps to figure out what should belong to what.