Class (Property) The Class property is used to get the actual type of the class instance handled by an object,... Class diagram A class diagram describes the structure of a system via classes and the relationships among them...... Class inheritance The hierarchical organization in class and sub-class has allowed to create the notion... "Is Class" operator The "is <Class>" operator is used to find out whether the object used in an object of the class... Error 1044: The class is already derived from this class Generating a class diagram The generation is used to create the WINDEV classes ("...... Error 1045: A class cannot be declared outside the declaration code of a class Error 1055: 'Ancestor' can only be used in the code of a class derived from a class Advanced management of class instances ... directly impacts the freeing of the class objects: depending on the selected take of reference,... Operations performed on class diagrams The following paragraphs explain...... Classes, members, methods and properties A class is made of...... Access rights to a class property A property is a code element that includes two processes...... Automated tests of procedures and classes The automated tests of procedure or class are used to test the different features proposed... Error 1015: The method of the class is protected Error 1010: The member of the class is constant Error 1008: The member of the class is protected Error 1009: The member of the class is private Error 1003: The element does not exist in the class Error 1021: The method of the class is not global Multiple assignments of arrays, structures and classes ... for the structures and the classes. Error 1016: The method of the class is private Elements of a class: Enumerating and handling through programming of a class...... Error 1038: This member already exists in the class Access rights to a class property: special cases The retrieval and assignment processes can be public, private or protected. The access rights... Error 1046: Wrong parameter for the constructor of the class