IKsPropertySet::Set

The Set method sets the value of a property in a property set.

HRESULT Set(
  REFGUID rguidPropSet,
  ULONG ulId,
  LPVOID pInstanceData,
  ULONG ulInstanceLength,
  LPVOID pPropertyData,
  ULONG ulDataLength
);

rguidPropSet: Reference to (C++) or address of (C) a GUID representing the property set to be accessed.
ulId: Item within the property set to be accessed. Items are indexed from 0 and are always the same for a given property set.
pInstanceData: Instance data for the set call. If there are multiple objects within the port that this operation could act on, the instance data specifies which object should be used. No standard property set items at the DirectMusic API level use instance data; however, vendor-defined extensions are free to use it.
ulInstanceLength: Number of bytes pointed to by pInstanceData.
pPropertyData: Property data to set for this item.
ulDataLength: Number of bytes pointed to by pPropertyData.

Return values are determined by the designer of the property set.

If the method succeeds, the return value may be S_OK.

If it fails, the method may return E_POINTER.

The format of the data in both pInstanceData and pPropertyData is item-specific.

Header: Declared in Dsound.h.

Import Library: Use Dsound3d.dll.