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True if the property exists, False otherwise.
Name of the control or name of the class instance to use. If this parameter corresponds to the name of a control, the property is searched among the standard WLanguage properties.If this parameter corresponds to a Class variable, the property is searched among the properties defined for the class. This parameter must necessarily correspond to the name of the control.
Name of the property whose existence must be checked.
Last update: 09/18/2020
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All you have to do is configure your product as follows: