CFile::SetFilePath
呼叫這個函式會指定檔案的路徑，例如，在中，如果檔案的路徑不可用，則 C 檔案 建構物件時，呼叫會提供自己的 SetFilePath 。
virtual void SetFilePath(
LPCTSTR lpszNewName
);
參數
- lpszNewName
字串的指標指定新路徑的。
備註
.gif "注意事項") 注意事項 |
|---|
SetFilePath 未開啟檔案也不會建立檔案，與其關聯 CFile 物件與路徑名稱，就可以使用。 |
範例
TCHAR* pstrName = _T("C:\\test\\SetPath_File.dat");
// open a file
HANDLE hFile = ::CreateFile(pstrName, GENERIC_WRITE, FILE_SHARE_READ,
NULL, CREATE_ALWAYS, 0, NULL);
if (hFile != INVALID_HANDLE_VALUE)
{
// attach a CFile object to it
CFile myFile(hFile);
// At this point, myFile doesn't know the path name for the file
// it owns because Windows doesn't associate that information
// with the handle. Any CFileExceptions thrown by this object
// won't have complete information.
// Calling SetFilePath() remedies that problem by letting CFile
// know the name of the file that's associated with the object.
myFile.SetFilePath(pstrName);
// write something to the file and flush it immediately
DWORD dwValue = 1234;
myFile.Write(&dwValue, sizeof(dwValue));
myFile.Flush();
// destroying the CObject here will call ::CloseHandle() on the file
}
需求
Header: afx.h