Properties, Methods, and Events in Visual Basic 6.0
Delve into the world of Visual Basic 6.0 to grasp the concepts of properties, methods, and events that define the behavior of objects. Explore how properties describe object characteristics, methods enable actions, and events capture interactions in this powerful programming environment.
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Visual Basic 6.0 - Properties, Methods and Events P.J.Balakumaran, A.P, SNMV CAS
Textbox, Command buttons, etc., are called as objects objects are loaded with properties Ex:- flower loaded with color, shape, etc like objects P.J.Balakumaran, A.P, SNMV CAS
Properties define the characteristics of an object such as Size, Color etc., Textbox Properties are Enabled, Font, MultiLine, Text, Visible, Width, etc., Visual Basic 6.0 P.J.Balakumaran, A.P, SNMV CAS
Method A method is an action that can be performed on objects. Visual Basic 6.0 Object-oriented programming, a method is a connected or built-in procedure. Text1.Move 700, 400 It has other associated methods such as Refresh, SetFocus, etc. P.J.Balakumaran, A.P, SNMV CAS
Simple logic Properties describe objects. Methods cause an object to do something. Events are what happens when an object does something Alignment Left Change or CLick Font- Bold Visual Visual Visual Basic 6.0 Basic 6.0 Basic 6.0 Objects Method Event P.J.Balakumaran, A.P, SNMV CAS
Common Properties PROPER TY DESCRIPTION Left The position of the left side of a control with respect to its container Top Height Width Name Enabled The position of the top of a control with respect to its container A control's height A control's width The string value used to refer to a control The Boolean (True/False) value that determines whether users can manipulate the control Visible The Boolean (True/False) value that determines whether users can see the control P.J.Balakumaran, A.P, SNMV CAS
Common Methods P.J.Balakumaran, A.P, SNMV CAS
Common Events Event Occurrence The user modifies text in a combo box or text box. The user clicks the primary mouse button on an object. The user double-clicks the primary mouse button on an object. The user drags an object to another location. The user drags an object over another control. An object receives focus. The user presses a keyboard key while an object has focus. The user presses and releases a keyboard key while an object has focus. The user releases a keyboard key while an object has focus. Occurrence An object loses focus. The user presses any mouse button while the mouse pointer is over an object. Change Click DblClick DragDrop DragOver GotFocus KeyDown KeyPress KeyUp Event LostFocus MouseDown The user moves the mouse pointer over an object. The user releases any mouse button while the mouse pointer is over an object. MouseMove MouseUp P.J.Balakumaran, A.P, SNMV CAS
