MapOfFile_reader

/** Se cercate il codice Writer, il link è https://pastebin.com/95E8DkzL (errore sul libro) */

#include <windows.h>
#include <assert.h>
#include <stdio.h>


static const LONG BufferSize=100;
static const char MemoryName[]="NomeZonaMemoria";
static char (*Memory)[BufferSize];
static HANDLE hMemory;

int main(void)    {
    hMemory=CreateFileMapping((HANDLE)0xFFFFFFFF,NULL,PAGE_READWRITE,0
        ,sizeof(char [BufferSize]),MemoryName);
    assert(hMemory!=NULL);

    Memory=(char (*)[BufferSize])MapViewOfFile(hMemory
        ,FILE_MAP_WRITE,0,0,sizeof(char [BufferSize]));
    assert(Memory!=NULL);

    wsprintf((*Memory),"0");// Setto il primo byte al carattere '0'.
    while((*Memory)[0]=='0') //Attendo sinché il primo byte non cambia
       {Sleep(1000); printf("Attendo...\n"); }
    printf("Leggo messaggio:\n");
    puts((*Memory)); // Leggo i dati

    UnmapViewOfFile(Memory);
    return 0;
    }