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Voorbeeldinterface voor UVC-extensie-eenheden

Important

De inhoud en voorbeeldcode in dit onderwerp zijn verouderd en worden momenteel niet ondersteund. Het werkt mogelijk niet met de huidige hulpprogrammaketen voor het ontwikkelen van stuurprogramma's.

This topic contains code for a sample interface.idl that you can use to support Extension Units.

// IExtensionUnit interface
import "unknwn.idl";
[
   object,
   local,
   uuid(yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy),
   pointer_default(unique)
]
interface IExtensionUnit : IUnknown
{
   HRESULT get_InfoSize(
      [out] ULONG *pulSize);
   HRESULT get_Info(
      [in] ULONG ulSize,
      [in, out, size_is(ulSize)] BYTE pInfo[]);
   HRESULT get_PropertySize(
      [in] ULONG PropertyId,
      [out] ULONG *pulSize);
 HRESULT get_Property(
      [in] ULONG PropertyId,
      [in] ULONG ulSize,
      [in, out, size_is(ulSize)] BYTE pValue[]);
   HRESULT put_Property(
      [in] ULONG PropertyId,
      [in] ULONG ulSize,
      [in, out, size_is(ulSize)] BYTE pValue[]);
   HRESULT get_PropertyRange(
      [in] ULONG PropertyId,
      [in] ULONG ulSize,
      [in, out, size_is(ulSize)] BYTE pMin[],
      [in, out, size_is(ulSize)] BYTE pMax[],
      [in, out, size_is(ulSize)] BYTE pSteppingDelta[],
      [in, out, size_is(ulSize)] BYTE pDefault[]);
};
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