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DuplicateHandle
..msdn Add comment W32 Constants Translate this page |
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The DuplicateHandle function duplicates an object handle.
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| Declaration: |
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BOOL DuplicateHandle(
HANDLE hSourceProcessHandle,
HANDLE hSourceHandle,
HANDLE hTargetProcessHandle,
LPHANDLE lpTargetHandle,
DWORD dwDesiredAccess,
BOOL bInheritHandle,
DWORD dwOptions
);
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| FoxPro declaration: |
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DECLARE INTEGER DuplicateHandle IN kernel32;
INTEGER hSourceProcessHandle,;
INTEGER hSourceHandle,;
INTEGER hTargetProcessHandle,;
INTEGER @ lpTargetHandle,;
INTEGER dwDesiredAccess,;
INTEGER bInheritHandle,;
INTEGER dwOptions
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hSourceProcessHandle
[in] Handle to the process with the handle to duplicate.
hSourceHandle
[in] Handle to duplicate. This is an open object handle that is valid in the context of the source process.
hTargetProcessHandle
[in] Handle to the process that is to receive the duplicated handle.
lpTargetHandle
[out] Pointer to a variable that receives the duplicate handle. This handle value is valid in the context of the target process.
dwDesiredAccess
[in] Access requested for the new handle.
bInheritHandle
[in] Indicates whether the handle is inheritable.
dwOptions
[in] Optional actions. |
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| Return value: |
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| If the function succeeds, the return value is nonzero. |
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| My comment: |
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| The duplicate handle refers to the same object as the original handle. Therefore, any changes to the object are reflected through both handles. For example, the current file mark for a file handle is always the same for both handles. |
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| Word Index links for the DuplicateHandle : |
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| Created: | 2004-12-18 09:27:34 | | Modified: | 2004-12-18 09:30:40 |
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