System.Sensors

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Sensors are pieces of hardware or software that can provide measures of physical quantities to your applications. This unit provides classes and components that let you obtain information and manage system sensors.

This unit provides the following sensor classes and components:

Class	Component
TCustomBiometricSensor	TBiometricSensor
TCustomElectricalSensor	TElectricalSensor
TCustomEnvironmentalSensor	TEnvironmentalSensor
TCustomLightSensor	TLightSensor
TCustomLocationSensor	TLocationSensor
TCustomMechanicalSensor	TMechanicalSensor
TCustomMotionSensor	TMotionSensor
TCustomOrientationSensor	TOrientationSensor
TCustomScannerSensor	TScannerSensor

It also provides access to related services. For example, TGeocoder and TGpsStatus provide access to geocoding and GPS services respectively, both services related to the TCustomLocationSensor.

The TSensorManager class lets you identify the sensors connected to the computer and make them available for use within applications.

Package	rtl290.bpl

Units

System.Sensors	Sensors are pieces of hardware or software that can provide measures of physical quantities to your applications. This unit provides classes and components that let you obtain information and manage system sensors.
System.Sensors.Components	A sensor measures a physical quantity and converts it into a signal that can be read by an application. System.Sensors.Components provides your applications with components that let you obtain information from many different types of hardware sensors.

Classes

EGeocoderException	General geocoder exception.
EGpsStatusException	General GPS status exception.
ELocationSensorException	Used for location sensor errors.
ESensorException	General sensor exception.
ESensorExceptionClass	Metaclass for sensor exceptions.
ESensorManagerException	General sensor manager exception.
TCivicAddress	Keeps a civic address.
TCustomBiometricSensor	Gives information regarding human-device interaction.
TCustomElectricalSensor	Gives information about electrical properties of the device.
TCustomEnvironmentalSensor	Gives information about temperature, atmospheric pressure, humidity, wind direction and wind speed.
TCustomLightSensor	Gives information about illuminance, light temperature and light chromaticity.
TCustomLocationSensor	Used to determine the location information of the device.
TCustomMechanicalSensor	Used to determine mechanical information about the device.
TCustomMotionSensor	Offers information about the acceleration, angle, state, and speed of the device motion.
TCustomOrientationSensor	Gives information about the device inclination, distance and compass heading.
TCustomScannerSensor	Used for Radio-frequency identification (RFID) and Barcode Data scanning.
TCustomSensor	Provides properties that give information about the actual hardware or logical (software) sensor installed on your system, such as the name, description, category, model or manufacturer.
TGeocoder	Used for handling geocoding and reverse geocoding.
TGeocoderClass	Geocoder implementer class.
TGpsStatus	Offers information about the GPS service.
TGpsStatusClass	GPS status implementer class.
TSensorManager	Used to identify the sensors connected to the computer and make them available for use within applications.

Types

TAuthorizationType	Type that represents the authorization state of an application to use a sensor.
TBiometricSensorType	Type that defines the type of sensor of a TCustomBiometricSensor.
TConvertAddressEvent	Type of event handler for the TCivicAddress.OnConvertAddress event.
TElectricalSensorType	Type that defines the type of sensor of a TCustomElectricalSensor.
TEnvironmentalSensorType	Type that defines the type of sensor of a TCustomEnvironmentalSensor.
TGeocodeEvent	Type of event handler for the TGeocoder.OnGeocode event.
TGeocodeReverseEvent	Type of event handler for the TGeocoder.OnGeocodeReverse event.
TGpsSatellite	Stores information about the status of a satelite.
THeading	Structure describing in which direction a device is headed.
THeadingChangedEvent	Type of event handler for the TCustomLocationSensor.OnHeadingChanged and TLocationSensor.OnHeadingChanged events.
TLightSensorType	Type that defines the type of sensor of a TCustomLightSensor.
TLocationAccuracy	Type to specify the accuracy of the measurements of a location sensor in meters.
TLocationActivityType
TLocationChangedEvent	Type of event handler for the TCustomLocationSensor.OnLocationChanged and TLocationSensor.OnLocationChanged events.
TLocationChangeType	Type to specify the level of accuracy of the location data updates provided by the location sensor.
TLocationCoord2D	Structure describing the geographical 2D coordinates.
TLocationDegrees	Type to specify a latitude or a longitude in degrees.
TLocationDistance	Distance between two geographic points measured in meters.
TLocationRegion	Structure describing a geographical region.
TLocationSensorType	Type that defines the type of sensor of a TCustomLocationSensor.
TLocationUpdatesPausedChangedEvent
TLocationUsageAuthorization
TMechanicalSensorType	Type that defines the type of sensor of a TCustomMechanicalSensor.
TMotionSensorType	Type that defines the type of sensor of a TCustomMotionSensor.
TOrientationSensorType	Type that defines the type of sensor of a TCustomOrientationSensor.
TPowerConsumption	Type that represents the current power of a location sensor.
TRegionProximityEvent	Type of event handler for events that occur when the user enters or leaves a region.
TScannerSensorType	Type that defines the type of sensor of a TCustomScannerSensor.
TSensorArray	Array of sensors.
TSensorCategories	Set of sensor categories.
TSensorCategory	Type that represents a sensor category.
TSensorFilter	Represents a sensor filter type.
TSensorManagerEvent	Type of event handler for TSensorManager.
TSensorState	Type to specify a state of a system sensor.