QueryInterface

Syntax

ADLX_RESULT     QueryInterface (const wchar_t* interfaceId, void** ppInterface)

Parameters

1. [in] interfaceId const wchar_t* The identifier of the interface being requested.

2. [out] ppInterface void** The address of a pointer to the returned interface. If the interface is not successfully returned, the method sets the dereferenced address *ppInterface to nullptr.

Return Value

If the interface is successfully returned, ADLX_OK is returned.

If the interface is not successfully returned, an error code is returned.

Refer to ADLX_RESULT for success codes and error codes.

Remarks

The returned interface must be discarded with Release when it is no longer needed.

Additional Info

In C++ when using a smart pointer for the returned interface there is no need to call Release because the smart pointer calls it internally.

Requirements