SHChangeNotification_Lock function
Applies to: desktop apps only
Locks the shared memory associated with a Shell change notification event.
Syntax
HANDLE SHChangeNotification_Lock( __in HANDLE hChange, DWORD dwProcId, __out_opt PIDLIST_ABSOLUTE **pppidl, __out_opt LONG *plEvent );
Parameters
- hChange [in]
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Type: HANDLE
A handle to a window received as a wParam in the specified Shell change notification message.
- dwProcId
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Type: DWORD
The process ID (lParam in the message callback).
- pppidl [out, optional]
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Type: PIDLIST_ABSOLUTE**
The address of a pointer to a PIDLIST_ABSOLUTE that, when this function returns successfully, receives the list of affected PIDLs.
- plEvent [out, optional]
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Type: LONG*
A pointer to a LONG value that, when this function returns successfully, receives the Shell change notification ID of the event that took place.
Return value
Type: HANDLE
Returns a handle (HLOCK) to the locked memory. Pass this value to SHChangeNotification_Unlock when finished.
Requirements
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Minimum supported client | Windows 2000 Professional |
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Minimum supported server | Windows 2000 Server |
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Build date: 3/7/2012
- 11/3/2009
- Chris_Guzak
