Most video digitizer parameters can be expressed by using the properties implemented by this class. You can find more information about the
types of parameters that can be described using the properties of the QTPlgVideoDigitizerFeature class consulting the
section
of the document
document.
→
The QTPlgVideoDigitizerFeature class constructors are called when you create a new instance of the class, while
the ˜QTPlgVideoDigitizerFeature class destructor, is called automatically when the
class is no more in use. Also, you can invoke the class destructor by setting the instance of the class to nil.
You can not create valid instances of this class by yourself; instead, you can obtain valid QTPlgVideoDigitizerFeature instances
whether from
dictionaries and by using the
method of the
class or of its derived class
. You can inspect the capabilitites and state of the returned parameter and,
if you need, change its state and then push back it to the video digitizer by using the class method.
Once a new class instance is returned, it is good practice to check the
class property to
be sure that the new object can be used.
The class provides you with the following initializer methods:
This is the copy constructor. The properties of the object to be copied will be used to initialize the
new class instance properties
specifies if the parameter can be turned on
specifies if the parameter can be turned off
specifies if the parameter can be put into automatic mode
specifies if the parameter can be put into manual mode
specifies if the parameter can be tuned. When tuned, a feature drops into automatic mode until it stabilizes and then it reverts to manual mode
specifies if the parameter’s value can be specified in raw values. Raw values are unitless and their meaning can vary from digitizer to digitizer
specifies if the parameter’s value can be specified in absolute units. Absolute values are expressed in engineering units, such as dB or degrees
determines if to turn on the parameter if applicable; changes to this property affect the state of the
property if applicable as well
determines if to turn off the parameter if applicable; changes to this property affect the state of the
property if applicable as well
determines if to put the parameter into automatic mode if applicable; changes to this property affect the state of the
property if applicable as well
determines if to put the parameter into manual mode if applicable; changes to this property affect the state of the
property if applicable as well
determines if the parameter’s value assigned by the property is
specified in raw values; changes to this property affect the state of the
property if applicable as well
determines if the parameter’s value assigned by the property is
specified in absolute values; changes to this property affect the state of the
property if applicable as well
specifies the raw minimum value if any
specifies the raw maximum value if any
specifies the absolute minimum value if any
specifies the absolute maximum value if any
determines the current parameter’s value