1. Visual Basic 6.0 - Properties, Methods and Events
P.J.Balakumaran, A.P, SNMV CAS

2. 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

3. 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

4. P.J.Balakumaran, A.P, SNMV CAS
Method
A method is an action that can be performed on objects.
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.
Visual Basic 6.0
P.J.Balakumaran, A.P, SNMV CAS

5. 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 Basic 6.0
Visual Basic 6.0
Visual Basic 6.0
Objects
Method
Event
P.J.Balakumaran, A.P, SNMV CAS

6. 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
The position of the top of a control with respect to its container
Height
A control's height
Width
A control's width
Name
The string value used to refer to a control
Enabled
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

7. P.J.Balakumaran, A.P, SNMV CAS
Common Methods
P.J.Balakumaran, A.P, SNMV CAS

8. P.J.Balakumaran, A.P, SNMV CAS
Common Events
Event
Occurrence
Change
The user modifies text in a combo box or text box.
Click
The user clicks the primary mouse button on an object.
DblClick
The user double-clicks the primary mouse button on an object.
DragDrop
The user drags an object to another location.
DragOver
The user drags an object over another control.
GotFocus
An object receives focus.
KeyDown
The user presses a keyboard key while an object has focus.
KeyPress
The user presses and releases a keyboard key while an object has focus.
KeyUp
The user releases a keyboard key while an object has focus.
LostFocus
An object loses focus.
MouseDown
The user presses any mouse button while the mouse pointer is over an object.
MouseMove
The user moves the mouse pointer over an object.
MouseUp
The user releases any mouse button while the mouse pointer is over an object.
P.J.Balakumaran, A.P, SNMV CAS