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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| No
| Win32s
| No
| Import Library
| kernel32.lib
| Header File
| winbase.h
| Unicode
| WinNT
| Platform Notes
| None
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CopyFileEx
[New - Windows NT]
The CopyFileEx function copies an existing file to a new file. This function preserves
extended attributes, OLE structured storage, NTFS alternate data streams, and file
attributes. Security attributes for the existing file are not copied to the new
file.
BOOL CopyFileEx(
LPCWSTR lpExistingFileName,
| // pointer to name of an existing file
| LPCWSTR lpNewFileName,
| // pointer to filename to copy to
| LPPROGRESS_ROUTINE lpProgressRoutine,
| // pointer to the callback function
| LPVOID lpData,
| // to be passed to the callback function
| LPBOOL pbCancel,
| // flag that can be used to cancel the operation
| DWORD dwCopyFlags
| // flags that specify how the file is copied
| );
|
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Parameters
lpExistingFileName
Points to a null-terminated string that specifies the name of an existing file.
lpNewFileName
Points to a null-terminated string that specifies the name of the new file.
lpProgressRoutine
Specifies the address of a callback function of type LPPROGRESS_ROUTINE that
is called each time another portion of the file has been copied. This parameter
can be NULL. For more information on the progress callback function, see CopyProgressRoutine.
lpData
Specifies an argument to be passed to the callback function. This parameter
can be NULL.
pbCancel
Points to a Boolean variable that can be used to cancel the operation. If this
flag is set to TRUE during the copy operation, the operation is canceled.
dwCopyFlags
Specifies how the file is to be copied. This parameter can be a combination of
the following values:
Value
| Meaning
| COPY_FILE_FAIL_IF_EXISTS
| The copy operation fails immediately if the target file already exists.
| COPY_FILE_RESTARTABLE
| Progress of the copy is tracked in the target file in case the copy fails. The
failed copy can be restarted at a later time by specifying the same values for lpExistingFileName and lpNewFileName as those used in the call that failed.
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Return Values
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error
information call GetLastError.
Remarks
For information on file attributes, see CreateFile.
See Also
CreateFile, CopyFile, CopyProgressRoutine, MoveFile
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