MeasuresGoneStale Event

Description

An event fired when one or more measurements in the collection goes “stale”

Syntax

Private Sub object_MeasuresGoneStale(Measures, MeasureObjectsArray, DependencyFlags)

The MeasuresGoneStale Event syntax has these parts:

Part	Description
object	A McMeasures object.
Measures	A McMeasures object. The McMeasures object firing the event.
MeasureObjectsArray	A Variant value. An array of the McMeasure objects that have just gone stale. This array may be of length only one; use the VB UBound method to find the largest index.
DependencyFlags	A mcMeasurementDependencyFlags enumeration, as described in settings. Flags, or'ed together, indicating which dependency or dependencies changed so as to cause the measurement(s) to go stale.

Settings

The settings for DependencyFlags are:

Constant		Value	Description
	mcmdfNoDependencies	0	no dependencies
	mcmdfImageLuminance	1	depends on ancestor image luminance data
	mcmdfFeatureData	2	depends on its ancestor McFeatures data
	mcmdfIntensityCalib	4	depends on the intensity calibration
	mcmdfSpatialCalib	8	depends on the spatial calibration
	mcmdfAoi	16	depends on ancestor image AOI
	mcmdfFeaturesStatus	32	depends on ancestor McFeatures.FeaturesStatusFlags or McFeatures.Selected properties.
	mcmdfUserData	64	depends on the UserData property
	mcmdfImageMultiChannel	128	measurements with this dependency are legal only on an ancestor image having multiple channels
	mcmdfImage3Color	256	measurements with this dependency are legal only on an ancestor image having 3 channels. This dependency implies mcmdfImageMultiChannel
	mcmdfOther	32768	some other dependency(s), so always ask
	mcmdfAssumedDependencies	95	These are the dependencies that are assumed if a user measurement does not report anything when a call is made to McUserMeasure.UserAttributes(mcmaidDependencies) or in response to the McUserMeasureCallback.GetAttributes(mcmaidDependencies) event. The assumed flags are mcmdfImageLuminance, mcmdfFeatureData, mcmdfIntensityCalib, mcmdfSpatialCalib, mcmdfAoi and mcmdfUserData.

Remarks

Sent whenever one or more measurements in the collection goes “stale”. A measurement is “stale” when its McMeasure.Value property needs to be recomputed; for each of the objects in teh MeasureObjectsArray the McMeasure.IsValueStale property will have gone True just before this event is fired.