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+/*************************************************************************
+ *
+ *  File Name (AccessibleValue.idl)
+ *
+ *  IAccessible2 IDL Specification
+ *
+ *  Copyright (c) 2007, 2010 Linux Foundation
+ *  Copyright (c) 2006 IBM Corporation
+ *  Copyright (c) 2000, 2006 Sun Microsystems, Inc.
+ *  All rights reserved.
+ *
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ *   3. Neither the name of the Linux Foundation nor the names of its
+ *      contributors may be used to endorse or promote products
+ *      derived from this software without specific prior written
+ *      permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  This BSD License conforms to the Open Source Initiative "Simplified
+ *  BSD License" as published at:
+ *  http://www.opensource.org/licenses/bsd-license.php
+ *
+ *  IAccessible2 is a trademark of the Linux Foundation. The IAccessible2
+ *  mark may be used in accordance with the Linux Foundation Trademark
+ *  Policy to indicate compliance with the IAccessible2 specification.
+ *
+ ************************************************************************/
+
+import "objidl.idl";
+import "oaidl.idl";
+import "oleacc.idl";
+
+/** @brief This interface gives access to a single numerical value.
+
+ The %IAccessibleValue interface represents a single numerical value and should
+  be implemented by any class that supports numerical value like progress bars
+  and spin boxes.  This interface lets you access the value and its upper and
+  lower bounds.
+*/
+[object, uuid(35855B5B-C566-4fd0-A7B1-E65465600394)]
+interface IAccessibleValue : IUnknown
+{
+
+  /** @brief Returns the value of this object as a number.
+
+   The exact return type is implementation dependent.  Typical types are long and
+    double.
+   @param [out] currentValue
+    Returns the current value represented by this object.  See the section about
+    @ref _variants "VARIANTs" for additional information.
+   @retval S_OK
+   @retval S_FALSE if there is nothing to return, [out] value is a VARIANT with vt = VT_EMPTY
+  */
+  [propget] HRESULT currentValue
+    (
+     [out, retval] VARIANT *currentValue
+    );
+
+  /** @brief Sets the value of this object to the given number.
+
+   The argument is clipped to the valid interval whose upper and lower
+    bounds are returned by the methods IAccessibleValue::maximumValue and
+    IAccessibleValue::minimumValue, i.e. if it is     lower than the minimum
+    value the new value will be the minimum and if it is greater than the
+    maximum then the new value will be the maximum.
+
+   @param [in] value
+    The new value represented by this object.  The set of admissible types for
+    this argument is implementation dependent.
+   @retval S_OK
+  */
+  HRESULT setCurrentValue
+    (
+     [in] VARIANT value
+    );
+
+  /** @brief Returns the maximal value that can be represented by this object.
+
+   The type of the returned value is implementation dependent.  It does not have
+    to be the same type as that returned by method IAccessibleValue::currentValue.
+
+   @param [out] maximumValue
+    Returns the maximal value in an implementation dependent type. If this object
+    has no upper bound then an empty object is returned.  See the section about
+    @ref _variants "VARIANTs" for additional information.
+   @retval S_OK
+   @retval S_FALSE if there is nothing to return, [out] value is a VARIANT with vt = VT_EMPTY
+  */
+  [propget] HRESULT maximumValue
+    (
+     [out, retval] VARIANT *maximumValue
+    );
+
+  /** @brief Returns the minimal value that can be represented by this object.
+
+   The type of the returned value is implementation dependent.  It does not have
+    to be the same type as that returned by method IAccessibleValue::currentValue.
+
+   @param [out] minimumValue
+    Returns the minimal value in an implementation dependent type. If this object
+    has no lower bound then an empty object is returned.  See the section about
+    @ref _variants "VARIANTs" for additional information.
+   @retval S_OK
+   @retval S_FALSE if there is nothing to return, [out] value is a VARIANT with vt = VT_EMPTY
+  */
+  [propget] HRESULT minimumValue
+    (
+     [out, retval] VARIANT *minimumValue
+    );
+
+};