gecko/other-licenses/ia2/Accessible2_2.idl

/*************************************************************************
 *
 *  File Name (Accessible2_2.idl)
 * 
 *  IAccessible2 IDL Specification 
 * 
 *  Copyright (c) 2007, 2013 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";
import "Accessible2.idl";

/** @brief This interface exposes the primary set of information about an
 IAccessible2 enabled accessible object.

 This interface must always be provided for objects that support some
 portion of the collection of the %IAccessible2 interfaces.

 Please refer to @ref _changingInterfaces "Changing between Accessible Interfaces"
 for special considerations related to use of the MSAA IAccessible interface and 
 the set of %IAccessible2 interfaces.
 */
[object, uuid(6C9430E9-299D-4E6F-BD01-A82A1E88D3FF)]
interface IAccessible2_2 : IAccessible2
{
  /** @brief Returns the attribute value of a specified attribute specific to this object.
   @param [in] name
   @param [out] attribute
   @retval S_OK
   @retval S_FALSE returned if there is nothing to return, [out] value is NULL.
   @retval E_INVALIDARG if bad [in] passed.
   @note The output value is a VARIANT.  Typically it will be a VT_BSTR, but there
     are some cases where it will be a VT_I4 or VT_BOOL.  Refer to the <a href=
     "http://www.linuxfoundation.org/collaborate/workgroups/accessibility/iaccessible2/objectattributesIAccessible2">
     Object Attributes specification</a> for more information.
  */
  [propget] HRESULT attribute
    (
     [in] BSTR name,
     [out, retval] VARIANT *attribute
    );

  /** @brief Returns the deepest hypertext accessible in the subtree of this object, and the caret offset within it.
   @param [out] accessible
   @param [out] caretOffset
   @retval S_OK
   @retval S_FALSE returned if there is no caret in any of the objects in the subtree, [out] accessible is NULL and [out] caretOffset is -1.
  */
  [propget] HRESULT accessibleWithCaret
    (
     [out] IUnknown **accessible,
     [out, retval] long *caretOffset
    );

  /** @brief Returns relation targets for a specified target type.
   @param [in] type
    The requested @ref grpRelations "relation type".
   @param [in] maxTargets
    The number of targets requested.  0 indicates that all targets should be returned.
   @param [out] targets
    This array is allocated by the server.  The client must free it with CoTaskMemFree.
   @param [out] nTargets
    The number of targets returned; the size of the returned array.
   @retval S_OK
   @retval S_FALSE if there are no targets, [out] values are NULL and 0 respectively.
   @retval E_INVALIDARG if bad [in] passed.
  */
  [propget] HRESULT relationTargetsOfType
    (
     [in] BSTR type,
     [in] long maxTargets,
     [out, size_is(,*nTargets)] IUnknown ***targets,
     [out, retval] long *nTargets
    );

}