Trying (and failing) to use an open Dialog box

[Clyde]

I'm trying to use one of the common dialog boxes, and I'm using code from Petzold's book, but MSVC++ is throwing errors at me.

I have a function called PopFileRead():

{
     BYTE   bySwap ;
     DWORD  dwBytesRead ;
     HANDLE hFile ;
     int    i, iFileLength, iUniTest ;
     PBYTE  pBuffer, pText, pConv ;

          // Open the file.

     if (INVALID_HANDLE_VALUE == 
               (hFile = CreateFile (pstrFileName, GENERIC_READ, FILE_SHARE_READ,
                                    NULL, OPEN_EXISTING, 0, NULL)))
          return FALSE ;

          // Get file size in bytes and allocate memory for read.
          // Add an extra two bytes for zero termination.
                    
     iFileLength = GetFileSize (hFile, NULL) ; 
     pBuffer = malloc (iFileLength + 2) ;

      
and on and on....

And i'm getting this error:

C:\Program Files\Microsoft Visual Studio\MyProjects\winpro2\File.cpp(76) : error C2440: '=' : cannot convert from 'void *' to 'unsigned char *'

Which is caused by the

 pBuffer = malloc (iFileLength + 2) ;

What's going on?

[Sorensen]

If you're compiling it as C++ code, you'll have to cast -

pBuffer = (PBYTE)malloc (iFileLength + 2);

[Clyde]

thanks