nf-uiautomationcoreapi-uiahostproviderfromhwnd.md

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NF:uiautomationcoreapi.UiaHostProviderFromHwnd	UiaHostProviderFromHwnd function (uiautomationcoreapi.h)	Gets the host provider for a window.	UiaHostProviderFromHwnd UiaHostProviderFromHwnd function [Windows Accessibility] uiauto.uiauto_UiaHostProviderFromHwndFunction uiauto_UiaHostProviderFromHwndFunction uiautomationcoreapi/UiaHostProviderFromHwnd winauto.uiauto_UiaHostProviderFromHwndFunction	winauto\uiauto_UiaHostProviderFromHwndFunction.htm	WinAuto	8cc8a8d8-a4e0-477e-bf3b-2fd5df2b9db1	12/05/2018	UiaHostProviderFromHwnd, UiaHostProviderFromHwnd function [Windows Accessibility], uiauto.uiauto_UiaHostProviderFromHwndFunction, uiauto_UiaHostProviderFromHwndFunction, uiautomationcoreapi/UiaHostProviderFromHwnd, winauto.uiauto_UiaHostProviderFromHwndFunction	uiautomationcoreapi.h		Windows	Windows XP [desktop apps \| UWP apps]	Windows Server 2003 [desktop apps \| UWP apps]										Uiautomationcore.lib	Uiautomationcore.dll		Windows			19H1	UiaHostProviderFromHwnd uiautomationcoreapi/UiaHostProviderFromHwnd	c++	APIRef kbSyntax	DllExport	Uiautomationcore.dll Ext-MS-Win-uiacore-l1-1-0.dll Ext-MS-Win-UIaCore-l1-1-1.dll Ext-MS-Win-UIaCore-l1-1-2.dll Ext-MS-Win-UiaCore-L1-1-3.dll	UiaHostProviderFromHwnd

UiaHostProviderFromHwnd function

-description

Gets the host provider for a window.

-parameters

-param hwnd [in]

Type: HWND

The window containing the element served by the provider.

-param ppProvider [out]

Type: IRawElementProviderSimple**

The host provider for the window.

-returns

Type: HRESULT

If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

-remarks

The object retrieved by this function is useful only for responding to calls to the IRawElementProviderSimple::get_HostRawElementProvider method. You cannot use the object to raise events, provide properties, and so on. If you need to raise events or provide properties, you must create a provider object that fully implements the IRawElementProviderSimple interface.

Examples

The following example returns the host provider for the window that hosts the control served by this provider.

HRESULT STDMETHODCALLTYPE Provider::get_HostRawElementProvider(IRawElementProviderSimple** pRetVal)
{
    return UiaHostProviderFromHwnd(controlHWnd, pRetVal); 
} 

-see-also

Functions for Providers