The user interface is what appears in the application’s window when it runs. It consists of various elements with which the user can interact and control the application. The first element of the user interface is the Form.

Objects : Objects are the real world entities. People, companies, employees, fan and ledger entries are all types of objects. In object-oriented terms, the word object is used to describe one specific thing like a car. Objects have an identity and this identity is defined with properties. A car has its name, model, cost and color.

Objects:

Think of objects as a thing, or a noun. Examples of objects are forms and controls.  Forms are the windows and dialog boxes you place on the screen; controls are the elements that you place inside a form, such as text boxes, command buttons, and list boxes.

Command button has a Caption property which is used to display a text on the top of Command Button.

Every control has it’s properties one of the common properties of controls is name property. Name property is the one by which the control is identified and it is referred as the object name of that control.