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IAccPropServices.DecomposeHwndIdentityString Method

The IAccPropServices interface and all of its exposed members are part of a managed wrapper for the Component Object Model (COM) IAccPropServices interface.

Namespace:  Accessibility
Assembly:  Accessibility (in Accessibility.dll)

void DecomposeHwndIdentityString(
	ref byte pIDString,
	uint dwIDStringLen,
	out _RemotableHandle phwnd,
	out uint pidObject,
	out uint pidChild


Type: System.Byte%
Pointer to a buffer containing identity string of an Hwnd-based accessible element.
Type: System.UInt32
Specifies the length of the identity string specified by pIDString.
Type: Accessibility._RemotableHandle%
Pointer to a buffer that receives the HWND of the accessible element.
Type: System.UInt32%
Pointer to a buffer that receives the object ID of the accessible element.
Type: System.UInt32%
Pointer to a buffer that receives the child ID of the accessible element.

For more information about IAccPropServices, see the documentation about "Dynamic Annotation" in the Microsoft Active Accessibility documentation in the MSDN library at

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.