Visual Basic Events and Event Procedures Quiz

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Questions and Answers

What is the method called when Timer1.Interval milliseconds elapses?

Timer1.Start()

Timer1.Timer() (correct)

Timer1.Elapsed()

Timer1.Run()

How do you begin a timer in Visual Basic?

Set Timer's Enabled property to False

Set Timer's Interval to 0

Set Timer's Enabled property to True (correct)

Use Timer1.Run()

Which prefix is suggested for naming Line control in Visual Basic?

lin (correct)

tmr

img

pic

What type of files can be displayed using PictureBox control?

.gif, .jpeg, and .bmp files Signup and view all the answers

What property can be used to resize pictures in an Image control to fit the control?

Stretch Signup and view all the answers

What function can be used to assign a picture to an image control at run time?

LoadPicture Signup and view all the answers

What is a good programming habit when naming Visual Basic controls?

Begin each name with three prefixes that determine the type of control Signup and view all the answers

How are words typically concatenated in a Visual Basic control name?

Using an underscore Signup and view all the answers

Which property affects the color of the text in most visible objects?

ForeColor Signup and view all the answers

What property is used for the string of characters that appears inside a control in Visual Basic?

Caption Signup and view all the answers

What are the default states of controls and forms in terms of visibility and enablement at runtime?

Both visible and enabled Signup and view all the answers

Which property affects the position and size of visible objects in Visual Basic?

Left, Top, Width, and Height Properties Signup and view all the answers

What is the purpose of hiding controls in a disabled state?

To prevent users from interacting with the controls Signup and view all the answers

Which event occurs when the user double-clicks on a control using the left mouse button?

DblClick event Signup and view all the answers

What does the KeyPress event in Visual Basic trigger?

Event triggered when a key is pressed while a control has focus Signup and view all the answers

Which event in Visual Basic is fired whenever the contents of a control change?

Change event Signup and view all the answers

What does the MouseUp event in Visual Basic signify?

Mouse is released on a control Signup and view all the answers

Which property affects the shape of the mouse cursor when hovering over a control?

MousePointer Property Signup and view all the answers

What is the purpose of a Form in a Visual Basic program?

Display controls and codes Signup and view all the answers

Which property must the Name property of an object in Visual Basic start with?

A letter Signup and view all the answers

What does the Caption property determine in a Form or MDI form object?

The text displayed in the title bar Signup and view all the answers

What does setting the Enabled property to False for a form or control do?

Prevents the object from responding to events Signup and view all the answers

What does the Control Box property indicate in Visual Basic?

Displays a close button on the form Signup and view all the answers

What does the Appearance property specify for controls on an MDIForm or Form Object?

Object's paint style Signup and view all the answers

What does a MaxButton property with a value 'False' indicate?

The form doesn't have a Maximize button Signup and view all the answers

What does a MinButton property with a value 'True' signify?

The form has a Maximize button Signup and view all the answers

What does the Visible property with a value 'False' represent?

Object is hidden Signup and view all the answers

What does the WindowState property with a value 'VbMaximized' indicate?

Maximized Signup and view all the answers

What is the purpose of a CommandButton control in Visual Basic?

Create a button that can choose to carry out a command Signup and view all the answers

What does the Moveable property with a value '0' signify?

The object cannot be moved Signup and view all the answers

Study Notes

Timer Control

The event that occurs when Timer1.Interval milliseconds elapses is called the Timer1_Timer event.
To begin a timer in Visual Basic, use the Timer1.Enabled = True property.

Control Naming and Properties

The suggested prefix for naming Line controls in Visual Basic is "lin".
The PictureBox control can display various file types, including .bmp, .jpg, .gif, .ico, and .wmf.
The AutoSize property can be used to resize pictures in an Image control to fit the control.
The LoadPicture function can be used to assign a picture to an Image control at runtime.
A good programming habit when naming Visual Basic controls is to use meaningful and descriptive names.
Words in a Visual Basic control name are typically concatenated using underscores ("_").
The ForeColor property affects the color of the text in most visible objects.
The Text property contains the string of characters that appears inside a control in Visual Basic, such as a label or textbox.

Control Behavior and Events

At runtime, controls and forms are visible and enabled by default.
The Location and Size properties affect the position and size of visible objects in Visual Basic.
Hiding controls in a disabled state is useful for temporarily preventing user interaction or removing visual clutter.
The DblClick event occurs when the user double-clicks on a control using the left mouse button.
The KeyPress event in Visual Basic is triggered when a key is pressed while the control has focus.
The TextChanged event in Visual Basic is fired whenever the contents of a control change.
The MouseUp event signifies that the mouse button has been released after being clicked.
The MousePointer property affects the shape of the mouse cursor when hovering over a control.

Form Properties and Behavior

The primary purpose of a Form in a Visual Basic program is to provide the visual interface for the application.
The Name property of an object must start with a letter.
The Caption property determines the title that appears in the title bar of a Form or MDI form object.
Setting the Enabled property to False for a form or control disables it, preventing user interaction.
The ControlBox property indicates whether the form has a control box (for minimizing, maximizing, and closing).
The Appearance property specifies whether controls on an MDIForm or Form Object have a 3D appearance.
A MaxButton property with a value 'False' indicates that the maximize button is disabled.
A MinButton property with a value 'True' signifies that the minimize button is enabled.
A Visible property with a value 'False' represents that the form is hidden.
A WindowState property with a value 'VbMaximized' indicates that the form is maximized.

CommandButton Control

The purpose of a CommandButton control in Visual Basic is to allow users to trigger actions.
A Moveable property with a value '0' signifies that the control cannot be moved.

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Description

Test your knowledge on Visual Basic events, event procedures, and how they are used in programming. Learn about common events like Click and DblClick events and how they are associated with objects in Visual Basic.