WIN32中，用WriteFile,OpenFile等函数如何追加的写文件？有无其他的函数对文件进行操作？

[cloud_soft]

[nustchen]

新的应该用CreateFile了，OpenFile已经列为Obsolete了。

[WhiteWaterBlueSky]

1。OpenFile function is provided for compatibility with 16-bit versions of Windows！

2。Win32-based applications should use the CreateFile function.

3。The SetFilePointer function moves the file pointer of an open file.

4。use WriteFile、ReadFile to Write/Read.

[cloud_soft]

为何我用WriteFile只能望我用CreateFile建立的文件写一行信息？如何设置WriteFile为追加？

[bejesus]

用fopen(filename,"a")就可以

[wildinghorse]

我知道你想作什么，呵呵，下面是代码，win32的，呵呵，给分吧


HANDLE hFile;
//初始文件句柄为空
hFile=NULL;

//创建文件句柄
hFile=CreateFile("text.txt",GENERIC_WRITE|GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if(hFile==NULL)
{
AfxMessageBox("创建文件句柄失败！");
}

//将文件指针指到文件末尾
SetFilePointer(hFile,0,NULL,FILE_END);
//将数据写入文件
CString outputText;
DWORD nLen;
WriteFile(hFile,outputText,nLen, (ULONG *)&nLen, NULL);

[cloud_soft]

为什么我写入的都是乱码？
char buffer[]="Test for Visual C++"
DOWORD nWrite;
hFile=CreateFile((LPCSTR)"c:\\test.txt",GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
if(INVALID_HANDLE_VALUE!=hFile)
{
SetFilePointer(hFile,0,NULL,FILE_END);
WriteFile(hFile,buffer,sizeof(buffer),&nWrite,NULL);
}
else
MessageBox(NULL,"Open File Failed!","Failed:",MB_OK);
break;

[wildinghorse]

写入参数不对WriteFile()函数的参数好好看看

[nustchen]

你用的是UNICODE模式吗，这样会出乱码。