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UnlockFile
..msdn Add comment W32 Constants Translate this page |
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Unlocks a region in an open file. Unlocking a region enables other processes to access the region. |
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| Declaration: |
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BOOL UnlockFile(
HANDLE hFile, // handle to file
DWORD dwFileOffsetLow, // low-order word of start
DWORD dwFileOffsetHigh, // high-order word of start
DWORD nNumberOfBytesToUnlockLow, // low-order word of length
DWORD nNumberOfBytesToUnlockHigh // high-order word of length
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| FoxPro declaration: |
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DECLARE INTEGER UnlockFile IN kernel32;
INTEGER hFile,;
INTEGER dwFileOffsetLow,;
INTEGER dwFileOffsetHigh,;
INTEGER nNumberOfBytesToUnlockLow,;
INTEGER nNumberOfBytesToUnlockHigh
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| Parameters: |
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hFile
[in] Handle to a file that contains a region locked with LockFile. The file handle must have been created with either GENERIC_READ or GENERIC_WRITE access to the file.
dwFileOffsetLow
[in] Specifies the low-order word of the starting byte offset in the file where the locked region begins.
dwFileOffsetHigh
[in] Specifies the high-order word of the starting byte offset in the file where the locked region begins.
nNumberOfBytesToUnlockLow
[in] Specifies the low-order word of the length of the byte range to be unlocked.
nNumberOfBytesToUnlockHigh
[in] Specifies the high-order word of the length of the byte range to be unlocked. |
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| Return value: |
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| If the function succeeds, the return value is nonzero. |
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| Word Index links for the UnlockFile : |
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| Created: | 2001-09-18 12:00:00 | | Modified: | 2001-11-26 16:03:42 |
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