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sensorsutils.h header

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

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 an INT32 value from a PROPVARIANT within a collection list based on the PROPERTYKEY.
PropKeyFindKeyGetInt64

This routine gets an 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.