IAccessibleEx::GetRuntimeId method (uiautomationcore.h)
Retrieves the runtime identifier of this element.
Syntax
HRESULT GetRuntimeId(
[out] SAFEARRAY **pRetVal
);
Parameters
[out] pRetVal
Type: SAFEARRAY**
Receives a pointer to the runtime identifier.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
The runtime identifier is a provider-defined array of integers, the first item of which must be UiaAppendRuntimeId. The runtime identifier must be unique within the parent window.
The MSAA-to-UIA Proxy uses the runtime identifier (together with the window handle) to determine if two interface instances refer to the same underlying element. If IAccessibleEx::GetRuntimeId is not implemented, the proxy performs field-by-field comparisons on the two IAccessible objects to determine if they are equivalent, which is less efficient.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 7, Windows Vista with SP2 and Platform Update for Windows Vista, Windows XP with SP3 and Platform Update for Windows Vista [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2008 R2, Windows Server 2008 with SP2 and Platform Update for Windows Server 2008, Windows Server 2003 with SP2 and Platform Update for Windows Server 2008 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | uiautomationcore.h (include UIAutomation.h) |
See also
Best Practices for Using Safe Arrays
Conceptual
Reference