// acxfuncenum.h

void ACX_IS_FUNCTION_AVAILABLE(
  FunctionName
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-acxfuncenum-acx_is_function_available)

The ACX_IS_FUNCTION_AVAILABLE function enables you to query if the specified ACX function is available on the system.

The name of the ACX function for which to query.

Returns TRUE if the function exists on the system, otherwise FALSE.

Minimum ACX version: 1.1

For more information about ACX versions, see ACX version overview.