DECLARE INTEGER LockFile IN kernel32;
		INTEGER hFile, INTEGER dwFileOffsetLow,;
		INTEGER dwFileOffsetHigh,;
		INTEGER nNumberOfBytesToLockLow,;
		INTEGER nNumberOfBytesToLockHigh

	DECLARE INTEGER UnlockFile IN kernel32;
		INTEGER hFile, INTEGER dwFileOffsetLow,;
		INTEGER dwFileOffsetHigh,;
		INTEGER nNumberOfBytesToUnlockLow,;
		INTEGER nNumberOfBytesToUnlockHigh