CFile::UnlockRange
Unlocks a range of bytes in an open file.
virtual void UnlockRange(
ULONGLONG dwPos,
ULONGLONG dwCount
);
Parameters
dwPos
The byte offset of the start of the byte range to unlock.dwCount
The number of bytes in the range to unlock.
Remarks
See the description of the LockRange member function for details.
Note
This function is not available for the CMemFile-derived class.
Example
CFile cfile;
cfile.Open(_T("LockRange_File.dat"), CFile::modeCreate |
CFile::modeReadWrite);
ULONGLONG dwPos = 10;
ULONGLONG dwCount = 100;
cfile.LockRange(dwPos, dwCount);
// do something with the file
cfile.UnlockRange(dwPos, dwCount);
Requirements
Header: afx.h