1. Hello!
I am Ma. Wennilou Porazo
Instructor
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2. An
Introduction
to Visual
Basic

3. After studying Lesson C, you should
be able to:
• Set the properties of a timer control
• Delete a control from the form
• Delete code from the Code Editor window
• Code a timer control’s Tick event procedure
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4. After studying Lesson C, you should
be able to:
• Prevent the user from sizing a form
• Remove and/or disable a form’s Minimize,
Maximize, and Close buttons
• Print an application’s code and interface
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5. Using the Timer Tool
● Splash screens typically close automatically
○ They do not usually contain an Exit button
○ Use a timer control to close the splash screen
● Timer tool
○ Used to create a timer control
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6. Using the Timer Tool (cont.)
● Timer control
○ Processes code at regular time intervals
○ Does not appear on the user interface at run
time
○ Important properties
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7. Using the Timer Tool (cont.)
● Interval property
○ Specified in milliseconds
● Enabled property
○ Allows the timer to run if set to True
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8. Using the Timer Tool (cont.)
● Tick event
○ Occurs each time a timer interval has elapsed
○ Condition: The timer must enabled
● Add code to the Tick event procedure
○ Code will be run when the Tick event occurs
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9. Using the Timer Tool (cont.)
● Component tray
○ A special area below the form design area in
the IDE
○ Stores controls not visible in the user
interface at run time
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10. 10
Timer control placed in the component tray

11. FormBorderStyle Property of a Form
● FormBorderStyle Property
○ Determines the border style of a form
● Example settings:
○ Sizable: Allows the user to change a form’s size by dragging
its borders at run time
○ FixedSingle: A fixed, thin border line
○ None: No border
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12. The MinimizeBox, MaximizeBox, and
ControlBox Properties
● MinimizeBox property
○ Determines whether the Minimize button
appears on the form’s title bar
● MaximizeBox property
○ Determines whether the Maximize button
appears on the form’s title bar
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13. ● ControlBox property
○ Determines if the title bar elements appear on
the form
● Splash screens typically do not contain a title bar
○ To remove a title bar, delete the contents of
the form’s Text property
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15. Lesson C, Summary
● The timer control processes code at specified
intervals.
● A form’s MinimizeBox and MaximizeBox
properties enable or disable the Minimize and
Maximize buttons on the form.
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16. Lesson C, Summary (cont.)
● A form’s ControlBox property determines
whether the icon and control buttons appear in
the title bar.
● A form’s FormBorderStyle property controls
the appearance of the form’s border.
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17. Thanks!
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