sensorsutils.h header

This header is used by sensors. For more information, see:

• Sensors

sensorsutils.h contains the following programming interfaces:

Functions

CollectionsListAllocateBufferAndSerialize This routine allocates a buffer and then serializes a sensor collection list to it.
CollectionsListCopyAndMarshall This routine copies and marshalls a collection list from source to target.
CollectionsListDeserializeFromBuffer This routine deserializes a collection list from the input buffer.
CollectionsListGetFillableCount Returns the number of elements a SENSOR_COLLECTION_LIST buffer of a certain size can possibly hold.
CollectionsListGetMarshalledSize Returns the size needed to accommodate serializing and marshaling a collection list, including embedded memory.
CollectionsListGetMarshalledSizeWithoutSerialization Returns the size of the entire collection list, including size of memories blocks that are pointed by embedded pointers.
CollectionsListGetSerializedSize This routine returns the larger of the two sizes to provide for sufficient buffer sizes to accommodate passing the collection list across processes that can have different bit-ness values.
CollectionsListMarshall This routine is similar to CollectionsListCopyAndMarshall, except that it marshalls a collection list in-place.
CollectionsListSerializeToBuffer This routine serializes a collection list to the caller-allocated buffer.
CollectionsListSortSubscribedActivitiesByConfidence This routine rearranges activity data collection under certain conditions.
CollectionsListUpdateMarshalledPointer This routine update embedded pointers.
EvaluateActivityThresholds This routine determines whether the new incoming activity data meets the threshold.
GetPerformanceTime This routine calculates system time in milliseconds.
InitPropVariantFromCLSIDArray This routine initializes a PROPVARIANT from a given array of GUIDs.
InitPropVariantFromFloat This routine initializes a PROPVARIANT with the given float.
IsCollectionListSame This routine compares two collection lists to see if they are the same.
IsGUIDPresentInList This routine looks for a GUID in a list of GUIDs.
IsKeyPresentInCollectionList This routine determine if a key is present in a collection list.
IsKeyPresentInPropertyList This routine determine if a key is present in a property list.
IsSensorSubscribed For internal use only.
MILLISECONDS_FROM_100NANOSECONDS This macro converts time, provided as 100 nanosecond units, to milliseconds.
MILLISECONDS_TO_100NANOSECONDS This macro converts time, in milliseconds, to 100 nanosecond units.
PropertiesListCopy This routine copies a properties list from source to target.
PropertiesListGetFillableCount Returns the number of elements a properties list buffer of a certain size can possibly hold.
PropKeyFindKeyGetBool This routine gets a BOOL value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetDouble This routine gets a double precision floating point value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetFileTime This routine gets a FILETIME value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetFloat This routine gets a single precision floating point value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetGuid This routine gets a GUID value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetInt32 This routine gets a INT32 value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetInt64 This routine gets a INT64 value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetNthInt64 This routine gets the nth INT64 value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetNthUlong This routine gets the nth ULONG value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetNthUshort This routine gets the nth USHORT value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetPropVariant This routine finds the PROPVARIANT from a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetUlong This routine gets a ULONG value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetUshort This routine gets a USHORT value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeySetPropVariant This routine finds and sets the PROPVARIANT within a collection list based on the PROPERTYKEY.
PropVariantGetInformation This routine gets offset, size, location pointer and DEVPROPTYPE, of a PROPVARIANT.
SensorCollectionGetAt This routine returns the PROPERTYKEY and PROPVARIANT associated with the nth element in the provided sensor collection list.
SerializationBufferAllocate Exported memory allocation function for allocating a serialized buffer.
SerializationBufferFree Exported memory allocation function for freeing a serialization buffer.