nf-interactioncontext-registeroutputcallbackinteractioncontext.md

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NF:interactioncontext.RegisterOutputCallbackInteractionContext	RegisterOutputCallbackInteractionContext function (interactioncontext.h)	Registers a callback to receive interaction events from an Interaction Context object.	RegisterOutputCallbackInteractionContext RegisterOutputCallbackInteractionContext function input_intcontext.registeroutputcallbackinteractioncontext interactioncontext.registeroutputcallbackinteractioncontext interactioncontext/RegisterOutputCallbackInteractionContext	input_intcontext\registeroutputcallbackinteractioncontext.htm	input_intcontext	87000250-f225-4864-96d2-1e189f5be1a3	12/05/2018	RegisterOutputCallbackInteractionContext, RegisterOutputCallbackInteractionContext function, input_intcontext.registeroutputcallbackinteractioncontext, interactioncontext.registeroutputcallbackinteractioncontext, interactioncontext/RegisterOutputCallbackInteractionContext	interactioncontext.h		Windows	Windows 8 [desktop apps only]	None supported										Ninput.lib	Ninput.dll		Windows			19H1	RegisterOutputCallbackInteractionContext interactioncontext/RegisterOutputCallbackInteractionContext	c++	APIRef kbSyntax	DllExport	ninput.dll API-MS-Win-Input-IE-InteractionContext-l1-1-0.dll IE_Shims.dll	RegisterOutputCallbackInteractionContext

RegisterOutputCallbackInteractionContext function

-description

Registers a callback to receive interaction events from an Interaction Context object.

-parameters

-param interactionContext [in]

Handle to the Interaction Context.

-param outputCallback [in]

The callback function.

-param clientData [in, optional]

A pointer to an object that contains information about the client. The value typically points to the object for which the member function is called (this).

-returns

If this function succeeds, it returns S_OK.

Otherwise, it returns an HRESULT error code.

-remarks

Each instance of an Interaction Context is limited to one output callback. Registering a callback function overwrites any existing callback registration for the Interaction Context.

This function is typically called after the creation of an Interaction Context or when the Interaction Context is reassigned to another UI element.

-see-also

INTERACTION_CONTEXT_OUTPUT

INTERACTION_CONTEXT_OUTPUT_CALLBACK

Interaction Context Functions