HANDLE hFileW = CreateFile( _T("test"),GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,NULL);
char ch = '0';
DWORD nW = 0;
WriteFile(hFileW,&ch,1,&nW,NULL);
::FlushFileBuffers(hFileW); // 可以用记事本打开文件并看到写入的数据 HANDLE hFile = CreateFile( _T("test"),GENERIC_READ,FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
if (!ReadFile(m_hFile,&ch,1,&nW,NULL))
{
// error code = 5 : 拒绝访问
nW = GetLastError();
} CloseHandle(hFile);
CloseHandle(hFileW);
char ch = '0';
DWORD nW = 0;
WriteFile(hFileW,&ch,1,&nW,NULL);
::FlushFileBuffers(hFileW); // 可以用记事本打开文件并看到写入的数据 HANDLE hFile = CreateFile( _T("test"),GENERIC_READ,FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
if (!ReadFile(m_hFile,&ch,1,&nW,NULL))
{
// error code = 5 : 拒绝访问
nW = GetLastError();
} CloseHandle(hFile);
CloseHandle(hFileW);
HANDLE hFileW = CreateFile( _T("test"),GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,NULL);
char ch = '0';
DWORD nW = 0;
WriteFile(hFileW,&ch,1,&nW,NULL);
::FlushFileBuffers(hFileW);CloseHandle(hFileW);
// 可以用记事本打开文件并看到写入的数据HANDLE hFile = CreateFile( _T("test"),GENERIC_READ,FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
if (!ReadFile(m_hFile,&ch,1,&nW,NULL))
{
// error code = 5 : 拒绝访问
nW = GetLastError();
}CloseHandle(hFile);