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BCryptUnregisterConfigChangeNotify function (bcrypt.h)

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The BCryptUnregisterConfigChangeNotify(HANDLE) function removes a user mode CNG configuration change event handler that was created by using the BCryptRegisterConfigChangeNotify(HANDLE*) function.

Syntax

NTSTATUS BCryptUnregisterConfigChangeNotify(
  [in] PRKEVENT pEvent
);

Parameters

[in] pEvent

The handle of the event to remove. This is the handle that was obtained by using the BCryptRegisterConfigChangeNotify(HANDLE*) function.

Return value

Returns a status code that indicates the success or failure of the function.

Possible return codes include, but are not limited to, the following.

Return code Description
STATUS_SUCCESS
 The function was successful.
STATUS_INVALID_PARAMETER
 The hEvent parameter is not valid.
STATUS_NO_MEMORY
 A memory allocation failure occurred.

Remarks

BCryptUnregisterConfigChangeNotify(HANDLE) can be called only in user mode. Code executing in kernel mode must call BCryptUnregisterConfigChangeNotify(PRKEVENT).

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header bcrypt.h
Library Bcrypt.lib
DLL Bcrypt.dll

See also

BCryptRegisterConfigChangeNotify(HANDLE*)