#include <Windows.h>
#include <iostream>

using namespace std;

int main()
{
    HANDLE hFile;
    BOOL bFile;
    char chBuffer[] = "abc";
    DWORD dwNumBytesToWrite = strlen(chBuffer) + 1;
    DWORD wNumBytesWritten = 0;
    char* chBufferRead = new char[strlen(chBuffer) + 1];
    DWORD dwNumBytesToRead = strlen(chBuffer) + 1;
    DWORD wNumBytesRead = 0;

    hFile = CreateFile(
                L"WriteFile.txt",
                GENERIC_READ | GENERIC_WRITE,
                FILE_SHARE_READ | FILE_SHARE_WRITE,
                NULL,
                CREATE_ALWAYS,
                FILE_ATTRIBUTE_NORMAL,
                NULL);
    if (hFile == INVALID_HANDLE_VALUE)
    {
        cout << "CreateFile failed with Error number: " << GetLastError() << endl;
    }
    else
    {
        cout << "CreateFile Success " << endl;
    }

    //Write to file
    bFile = WriteFile(
                hFile,
                chBuffer,
                dwNumBytesToWrite,
                &wNumBytesWritten,
                NULL);

    if (bFile == FALSE)
    {
        cout << "WriteFile failed with Error" << GetLastError() << endl;
    }
    else
    {
        cout << "WriteFile Success " << endl;
    }

    //Read from file
    bFile = ReadFile(
        hFile,
        chBufferRead,
        dwNumBytesToRead,
        &wNumBytesRead,
        NULL);

    if (bFile == FALSE)
    {
        cout << "ReadFile failed with Error" << GetLastError() << endl;
    }
    else
    {
        cout << "ReadFile Success " << endl;
        cout << "Data read from file: " << chBufferRead << endl;
    }

    delete chBufferRead;

    if (CloseHandle(hFile))
    {
        cout << "Handle closed" << endl;
    }

    system("PAUSE");
    return 0;
}