SetFilePointer(文件指针)

看代码:

void CSetFilePointerDlg::OnBnClickedButton1()
{
    HANDLE hFile = CreateFile(_T("F:\\123.txt"), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    SetFilePointer(hFile, sizeof(int) + sizeof(NPC), NULL, FILE_BEGIN);
    char szChar[20] = "";
    DWORD hasRead;
    BOOL rRet = ReadFile(hFile, szChar, sizeof(szChar), &hasRead, NULL);
    if (rRet) {
        MessageBox(_T("成功!"));
    }
    else {
        MessageBox(_T("失败!"));
    }
}