CFile::UnlockRange
Unlocks a range of bytes in an open file.
virtual void UnlockRange(
ULONGLONG dwPos,
ULONGLONG dwCount
);
Параметры
dwPos
The byte offset of the start of the byte range to unlock.dwCount
The number of bytes in the range to unlock.
Заметки
See the description of the LockRange member function for details.
.gif "Примечание") Примечание. |
|---|
This function is not available for the CMemFile-derived class. |
Пример
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);
Требования
Header: afx.h