VISUAL

BASIC

HOW TO HOW TO WORK WITH WORK WITH

VISUAL BASIC?VISUAL BASIC?

Visual Basic (VB) is the third-generation event-driven programming language and integrated development environment (IDE) from Microsoft or its COM programming model. Visual Basic is relatively easy to learn and use.Visual Basic was derived from BASIC and enables the rapid application development (RAD) of graphical user interface (GUI) applications, access to databases using Data Access Objects, Remote Data Objects, or ActiveX Data Objects, and creation of ActiveX controls and objects. Scripting languages such as VBA and VBScript are syntactically similar to Visual Basic, but perform differently. A programmer can put together an application using the components provided with Visual Basic itself. Programs written in Visual Basic can also use the Windows API, but doing so requires external function declarations.The final release was version 6 in 1998. Microsoft's extended support ended in March 2008 and the designated successor was Visual Basic .NET (now known simply as Visual Basic).

HOW TO START VISUAL HOW TO START VISUAL BASIC?BASIC?

FIG.1.1 NEW PROJECT WINDOW

TO START VISUAL BASIC,THE STEPS TO START VISUAL BASIC,THE STEPS ARE-ARE-

1.CLICK ON START PROGRAMS MICROSOFT VISUAL BASIC STUDIO 6.0 MICROSOFT VISUAL BASIC 6.0

2.THE NEW PROJECT WINDOW APPEARS (FIG.1.1)

THE NEW PROJECT WINDOW HAS THE NEW PROJECT WINDOW HAS THREE TABS:-THREE TABS:-

1)NEW:TO START A NEW PROJECT.

2)EXISTING:TO SELECT FROM A LIST OF EXISTING PROJECTS.

3)RECENT:TO SELECT FROM THE LIST OF RECENTLY OPENED PROJECTS.IN THE NEW TAB ,SELECT STANDARD.EXETHE NEW TAB ,SELECT STANDARD.EXEAPPLICATION .THIS OPENS THE APPLICATION .THIS OPENS THE MICROSOFTMICROSOFTVISUAL BASIC WINDOW.VISUAL BASIC WINDOW.

COMPONENTS OF VB COMPONENTS OF VB WINDOWWINDOW

Project window

Properties window

Properties layout window

Form window

Tool box

Tool bar

Menu bar

Title bar

FIG 1.2 COMPONENTS OF WINDOWFIG 1.2 COMPONENTS OF WINDOW

TITLE BAR:-TITLE BAR:-

THE TITLE BAR(FIG 1.3)APPEARS AT THE TOP OF THE TITLE BAR(FIG 1.3)APPEARS AT THE TOP OF THE THE

VB WINDOW AND DISPLAYS TITLE OF THE PROJECT.VB WINDOW AND DISPLAYS TITLE OF THE PROJECT.

BY DEFAULT THE VB GIVES NAME SUCH AS BY DEFAULT THE VB GIVES NAME SUCH AS PROJECT1,PROJECT1,

PROJECT 2 .PROJECT 2 .

A VB APPLICATION WORKS ON 3 MODES:-A VB APPLICATION WORKS ON 3 MODES:-

FIG 1.3 TITLE BARFIG 1.3 TITLE BAR

RUN MODE

BREAK MODE

DESIGN MODE

MENU BAR AND TOOL BARMENU BAR AND TOOL BAR

MENU BAR-MENU BAR-THE MENU BAR(FIG 1.4) CONSISTS OF THE MENU BAR(FIG 1.4) CONSISTS OF

MANY DROP-DOWN MENUS.CLICKING ON ANY OFMANY DROP-DOWN MENUS.CLICKING ON ANY OF

THE OPTION OFTHE MENU BAR MAKES IT THE OPTION OFTHE MENU BAR MAKES IT

ACTIVE.ACTIVE.

TOOL BAR-TOOL BAR-THE TOOL BAR(FIG 1.4) HAS BUTTONS THATTHE TOOL BAR(FIG 1.4) HAS BUTTONS THAT

PROVIDE SOME OF THE MENU OPTIONS.PROVIDE SOME OF THE MENU OPTIONS.

Menu bar

Tool bar

FIG 1.4 MENU BAR AND TOOL BARFIG 1.4 MENU BAR AND TOOL BAR

FORM WINDOWFORM WINDOW

THE FORM THE FORM WINDOW(FIG1.5) WINDOW(FIG1.5)

IS THE PRIMARY WORK IS THE PRIMARY WORK

AREA THAT FORMS THEAREA THAT FORMS THE

BACKGROUND OF THE BACKGROUND OF THE

APPLICATION .THE APPLICATION .THE USERUSER

CAN DRAW OBJECTS ONCAN DRAW OBJECTS ON

THE FORM.THE FORM.FIG. 1.5 FORM WINDOWFIG. 1.5 FORM WINDOW

TOOLBOX TOOLBOX THE TOOLBOX (FIG 1.6)CONTAINS ICONS THAT REPRESENT COMMONLY USED CONTROLS SUCH AS LABEL,TEXTBOX, COMMAND BUTTON ,ETC.

FIGFIG 1.6 TOOLBOX1.6 TOOLBOX

PROJECT WINDOWPROJECT WINDOWIT DISPLAYS A LIST OF ALL FORMS THAT MAKES UPIT DISPLAYS A LIST OF ALL FORMS THAT MAKES UP

THE APPLICATION.IT HAS THREE BUTTONS ON THETHE APPLICATION.IT HAS THREE BUTTONS ON THE

TOP LEFT.(FIG 1.7)TOP LEFT.(FIG 1.7)

1.CLICK ON VIEW OBJECT TO OPEN A FORM.1.CLICK ON VIEW OBJECT TO OPEN A FORM.

2.CLICK ON VIEW CODE TO OPEN CODE WINDOW.2.CLICK ON VIEW CODE TO OPEN CODE WINDOW.

View Code

Viewobject

Select form

FIG 1.7 PROJECT WINDOWFIG 1.7 PROJECT WINDOW

PROPERTIES WINDOWPROPERTIES WINDOWTHE PROPERTIES WINDOW LISTS THE PROPERTY OF THE SELECTED CONTROLS OR FOR THE FORM.

THE PROPERTY WINDOW HAS TWO TABS:

1.THE ALPHABETIC TAB LIST ALL THE PROPERTIES IN ALPHABETIC ORDER.(FIG 1.8)

2.THE CATEGORIZED TAB LISTS THE PROPERTIES CATEGORY-

WISE(FIG 1.9)

FIG 1.8 ALPHABETIC TAB OF PROPERTIES FIG 1.8 ALPHABETIC TAB OF PROPERTIES WINDOWWINDOW

FIG 1.9 CATEGORIZED TAB OFFIG 1.9 CATEGORIZED TAB OF

PROPERTIES WINDOWPROPERTIES WINDOW

FORM LAYOUT WINDOWFORM LAYOUT WINDOW

IT SHOWS THE POSITION OF THE IT SHOWS THE POSITION OF THE

FORM RELATIVE TO THE MONITOR’S FORM RELATIVE TO THE MONITOR’S

SCREEN WHEN THE PROGRAM IS SCREEN WHEN THE PROGRAM IS

EXECUTED.(FIG 1.10)EXECUTED.(FIG 1.10)

FIG 1.10 FORM LAYOUT WINDOWFIG 1.10 FORM LAYOUT WINDOWFAST FORWARD

TO VIEW FORM LAYOUT WINDOW PRESS SHIFT+F4

DEVELOPMENT OF AN DEVELOPMENT OF AN APPLICATIONAPPLICATION

IN VB, AN APPLICATION CAN BE DEVELOPED BY THE IN VB, AN APPLICATION CAN BE DEVELOPED BY THE

FOLLOWING STEPS:FOLLOWING STEPS:

1.CREATE A FORM1.CREATE A FORM

2.PLACE CONTROLS ON TE FORM2.PLACE CONTROLS ON TE FORM

3.SET PROPERTIES OR THE CONTROL3.SET PROPERTIES OR THE CONTROL

4.ADD CODE TO THE HANDLE THE EVENTS4.ADD CODE TO THE HANDLE THE EVENTS

THE CONTROLS IN THE TOOLBOX CAN BE CALLED THE CONTROLS IN THE TOOLBOX CAN BE CALLED OBJECTS INOBJECTS IN

VB.EVERY CONTROL IS ASSOCIATED WITH ITS VB.EVERY CONTROL IS ASSOCIATED WITH ITS INDIVIDUALINDIVIDUAL

PROPERTIES ,METHODS AND EVENTS.PROPERTIES ,METHODS AND EVENTS.

PROPERTYPROPERTYIT IS THE NAMED ATTRIBUTE OF AN OBJECT IT IS THE NAMED ATTRIBUTE OF AN OBJECT FOR EXAMPLE,THE TEXT BOX HAS PROPERTIES FOR EXAMPLE,THE TEXT BOX HAS PROPERTIES SUCH AS COLOR,FONT,ENABLED,VISIBLE,ETC.SUCH AS COLOR,FONT,ENABLED,VISIBLE,ETC.

METHODMETHODIT IS AN ACTION THAT CAN BE PERFORMED ONIT IS AN ACTION THAT CAN BE PERFORMED ONAN OBJECT.AN OBJECT.

EVENTEVENTWE KNOW THAT VB IS AN EVENT-DRIVEN WE KNOW THAT VB IS AN EVENT-DRIVEN

PROGRAMMINGPROGRAMMINGLANGUAGE.A TEXT BOX SUPPORTS VARIOUS EVENTS LANGUAGE.A TEXT BOX SUPPORTS VARIOUS EVENTS

SUCH AS SUCH AS CLICK,DOUBLE-CLICK,MOUSE UP ETC.WHEN AN CLICK,DOUBLE-CLICK,MOUSE UP ETC.WHEN AN EVENT OCCURS,A PARTICULAR CODE IS EXECUTEDEVENT OCCURS,A PARTICULAR CODE IS EXECUTED

HOW TO PLACE CONTROLS ON THE FORM?A CONTOL CAN BE PLACED ON A FORM USING TWO METHODS.

FIRST METOD DOUBLE CLCK ON THE CONTROL IN THE ICON IN THE

TOOLBOX. THE CONTROL APPEARS IN THE MIDDLE OF FORM.(FIG

1.11)

FIG 1.11 CONTROL ON THE FORMFIG 1.11 CONTROL ON THE FORM

TO CHANGE THE POSITION OF THE CONTROLTO CHANGE THE POSITION OF THE CONTROL:

FIG 1.12 DRAGGING THE CONTROL

TO RESIZE THE CONTROL JUST CLICK ON THE TO RESIZE THE CONTROL JUST CLICK ON THE CONTROL AND RESIZE THE POINTERS ON ITS CONTROL AND RESIZE THE POINTERS ON ITS EDGES AND CORNERS.EDGES AND CORNERS.

i.DRAG THE EDGES POINTER FOR CHANGING THE SIZE EITHER i.DRAG THE EDGES POINTER FOR CHANGING THE SIZE EITHER HORIZONTALLY OR VERTICALLY.[FIG 1.13(a)]HORIZONTALLY OR VERTICALLY.[FIG 1.13(a)]

ii.DRAG THE CORNER POINTERS FOR CHANGING THE SIZE ii.DRAG THE CORNER POINTERS FOR CHANGING THE SIZE DIAGONALLY.[FIG 1.13(b)]DIAGONALLY.[FIG 1.13(b)]

FIG 1.13(a) RESIZING CONTROL VERTICALLY FIG 1.13(b) RESIZING DIAGONALLY

DRAG IT TO THE NEW LOCATION. DRAG IT TO THE NEW LOCATION. (FIG.1.12)(FIG.1.12)

CLICK THE CONTROLCLICK THE CONTROL

SECOND METHODSECOND METHOD CLICK ON THE CONTROL ICONCLICK ON THE CONTROL ICON IN THE TOOLBOX IN THE TOOLBOX

AND THEN CLICK ON THE DESIRED LOCATION ON AND THEN CLICK ON THE DESIRED LOCATION ON THE FORM.DRAG THE MOUSE DIAGONALLY SO THE FORM.DRAG THE MOUSE DIAGONALLY SO THAT THE CONTROL HAS THE DESIRED SIZE.(FIG THAT THE CONTROL HAS THE DESIRED SIZE.(FIG 1.14)1.14)

TO REPOSITION THE CONTROL ,HOLD DOWN THE TO REPOSITION THE CONTROL ,HOLD DOWN THE LEFT MOUSE BUTTON AND DRAG THE CONTROL LEFT MOUSE BUTTON AND DRAG THE CONTROL TO A NEW LOCATION,TO A NEW LOCATION,

TO RESIZE THE CONTROL,CLICK THE TO RESIZE THE CONTROL,CLICK THE CONTROL,DRAG ONE OF ITS EDGES OR CORNERS.CONTROL,DRAG ONE OF ITS EDGES OR CORNERS.

FIG 1.14 DRAGGING DIAGONALLY

DELETE A CONTROLDELETE A CONTROL

FORM OBJECTFORM OBJECTTO CREATE A VB APPLICATION ,WE NEED AN INTERFACE FOR THE USER TO INTERACT.THE FORM IS WHERE THE INTERFACE IS DRAWN.SOME OF THE COMMON PROPERTIES , EVENTS AND METHODS ARE:

CLICK ON CLICK ON DELETEDELETE

PROPERTIESPROPERTIES

CAPTION :CAPTION :IT SETS THE TITLE OF THE FORMIT SETS THE TITLE OF THE FORM

NAME :NAME :IT GIVES THE NAME OF THE FORM WITH WHICH IT IS IT GIVES THE NAME OF THE FORM WITH WHICH IT IS REFERRED TO IN THE CODE.THE DEFAULT VALUE IS FORM.REFERRED TO IN THE CODE.THE DEFAULT VALUE IS FORM.

APPEARANCE:APPEARANCE:VALUE 1 MAKES THE FORM LOOK LIKE THREE-VALUE 1 MAKES THE FORM LOOK LIKE THREE- DIMENSIONAL.VALUE 0 MAKES THE FORM LOOK DIMENSIONAL.VALUE 0 MAKES THE FORM LOOK FLAT.FLAT.

FONT:FONT:IT SETS THE FONT TYPE ,FONT STYLE AND FONT SIZE IT SETS THE FONT TYPE ,FONT STYLE AND FONT SIZE FOR THE TEXT.FOR THE TEXT.

FORE COLOR :FORE COLOR :IT SETS THE COLOR FOR THE TEXT ON THE FORM.IT SETS THE COLOR FOR THE TEXT ON THE FORM.

ENABLED:ENABLED:VALUE TRUE MAKES THE FORM RESPOND TO MOUSEVALUE TRUE MAKES THE FORM RESPOND TO MOUSE AND KEYBOARD EVENTS.VALUE FALSE MAKES THE AND KEYBOARD EVENTS.VALUE FALSE MAKES THE FORM RESPONDING TO ANY EVENT.FORM RESPONDING TO ANY EVENT.

BACK COLOR:BACK COLOR:IT SETS THE FORM’S BACKGROUND COLOR.IT SETS THE FORM’S BACKGROUND COLOR.

VISIBLE: VISIBLE: VALUE FALSE MAKES THE FORM INVISIBLEVALUE FALSE MAKES THE FORM INVISIBLE

EVENTSCLICK FORM-CLICK EVENT IS TRGGERED WHEN THE USER CLICKS ON THE FORM .

LOAD FORM-LOAD EVENT IS TRIGGERED WHEN THE FORM I LOADED.THIS LOADS THE FORM INTO THE MEMORY.

METHODSPRINT THIS PRINTS TEXT STRING ON THE FORM.

SHOW THIS MAKES THE FORM VISIBLE.IT IS THE SAME AS SETTING A FORM’S VISIBLE PROPERTY ON TRUE.

HIDE THIS MAKES THE FORM INVISIBLE

LET US SEE HOW A VB APPPLIATION IS

CREATED AND EXECUTED SUPPOSE WE WANT TO DISPLAY A MESSAGE ‘LEARNING VISUAL BASIC IS FUN’ ON THE FORM.THE STEPS TO CREATE EXEXCUTE AND SAVE

VB APPLICATION FOR THIS MESSAGE ARE:

CLICK CLICK ON ON

STARTSTART

1)

MICROSOFT MICROSOFT VISUAL VISUAL STUDIOSTUDIO

CLICK PROGRAMSCLICK PROGRAMS CLICK MICROSOFT VISUAL BASIC STUDIOCLICK MICROSOFT VISUAL BASIC STUDIO

5) THEN CLICK ON MICOSOFT VISUAL BASIC 6.0

333)3)

4)4)

4.MAKE SURE FORM IS SELECTED IN THE PROJECT

EXPLORER WINDOW.5.IN THE PROPERTIES WINDOWi.CHANGE THE CAPTION MESSAGE.ii.SELECT THE BACKCOLOR OF THE FORM.CLICK ON

THE DROP-DOWN ARROW ON THE RIGHT OF BACK

COLOR AND SELECT A COLOR.MAKE SURE THE PALLETE

TAB IS SELECTED.(FIG 1.16)

FIG 1.16 BackColor Property

iii.SELECT THE FONT CLICK ON THE BUTTON TO THE RIGHT WITH THREE DOTS(FIG 6.17).THE FONT WINDOW APPEARS.(FIG 6.18)

FIG 6.17 FONT PROPERTY FIG 1.18 FONT WINDOW

iv.SET THE FONT AS ARIAL,FOBT STYLE AS BOLD AND SZE AS 18;AND CLICK ON OK.

6.TO WRITE THE CODE:i. DOUBLE-CLICK ANYWHERE ON THE FORM TO GET

THE CODE TEMPLATE(FIG 1.19).ii. BETWEEN THE TWO LINESOF THE TEMPLATE,TYPE

THE FOLLOWING CODE(FIG 1.20)

FIG 1.19 CODE TEMPLATEFIG 1.20 VB CODE

7.TO SAVE THIS VB APPLICATION:i. SELECT FILE SAVE TO FIRST SAVE THE

FORM(FIG 1.21) AND THEN THE PROJECT (FIG 1.22).

8.TO RUN THIS VB APPLICATION:i. PRESS F5 OR CLICK THE START BUTTON ON THE TOOL BAR.(FIG 1.23) FIG 1.23 START BUTTON ON TOOLBAR

Start button

FIG 1.21 SAVE FROM FIG 1.22 SAVE PROJECT

9.THE OUTOUT OF THIS VB APPLICATION IS SHOWN IN (FIG 1.24).

FIG 1.24 OUTPUT OF THE VB CODE

FAST FORWARD

TO RUN A PROGRAM PRESS F5

COMMON CONTROLS

POINTERTHE POINTER PROVIDES THE WAY TO RESIZE OR MOVE THE OTHER CONTROLS.THIS IS AUTOMATICALLY ACTIVATED AFTER THE USER PLACES A CONTROL ON THE FORM. TOP TIP

THE POINTER IS THE ONLY CONTROL IN THE TOOLBOX THAT CANNOT BE PLACED ON THE FORM

LABELLABELLABEL IS A CONTROL THAT CAN BE USED TO DISPLAY TEXT THAT USER CAN EDIT DIRECTLY.PROPERTIESNAME:THIS GIVES THE NAME USED TO REFER LABEL IN THE CODE.CAPTION:THIS IS THE TEXT DISPLAYED IN THE LABEL.FONT:THIS SETS FONT,FONT STYLE AND FONT SIZE.BORDER STYLE:THIS DETERMINES THE TYPE OF BORDER.APPEARANCE:THIS IS 3-D IN APPEARANCE.

EVENTSCLICK:THIS EVENT IS TRIGGERED WHEN THE USER CLICKS ON THE LABEL.DOUBLE CLICK:THIS EVENT IS TRIGGERED WHEN TH USER DOUBLE- CLICKS ON THE LABEL

TEXTBOX THE TEXT BOX IS A CONTROL THAT IS USED TO RECEIVE INPUT FROM THE USER AND ALSO TO DISPLAY THE OUTPUT.IT CAN HANDLE STRING(TEXT) AND NUMERIC DATA BUT NOT PICTURE OR IMAGES. PROPERTIES NAME:THIS IS THE NAME USED TO REFER TO THE

TEXTBOX IN THE CODE. APPEARANCE:THIS IS 3-D OR FLAT IN APPEARANCE MAXLENGTH:THIS LIMITS THE LENGTH OF THE TEXT. VALUE 0 INDICATES LIMITED LENGTH. MULTILINE: THIS SPECIFIES WHETHER THE TEXTBOX DISPLAYS A SINGLE LINE OR MULTIPLE LINES.

PASSWORD CHAR:THIS HIDES THE TEXT WITH A SINGLE CHARACTER(USUALLY*IS USED).ENABLED:VALUE TRUE/FALSE DETERMINES WHETHER THE TEXTBOX RESPONDS TO ANY EVENT OR NOT.LOCKED:VALUE TRUE/FALSE DETERMINES WHETHER THE TEXTBOX RESPONDS TO ANY EVENT OR NOT.LOCKED:VALUE TRUE/FALSE DETERMINES WHETHER THE TEXTBOX CONTENTS CAN BE CHANGED OR NOT.TEXT:THIS IS THE STRING TO BE DISPLAYED IN THE TEXTBOX.

EVENTSCHANGE:THIS EVENT IS TRIGGERED EVERY TIME WHEN THE TEXTBOX DISPLAYS A SINGLE LINE OR MULTIPLE LINE.

METHODSetFocus:THIS POSITIONS THE CURSOR INSIDE THE TEXT BOX.

COMMAND BUTTONCOMMAND BUTTONTHE COMMAND BUTON IS VERY IMPORTANT CONTROL AS IT IS USED TO EXECUTE COMMANDS AND IT DISPLAYS AN ILLUSION THAT THE BUTTON IS PRESSEDWHEN THE USER CLICKS ON IT.

PROPERTIESPROPERTIESAPPEARANCES:THIS IS 3-D OR FLAT IN APPEARANCE.CAPTION:THIS IS THE STRING THAT IS DISPLAYED ON THE COMMAND BUTTON.VISIBLE:VALUE TRUE/FALSE DETERMINES WHETHER IT IS VISIBLE OR NOT.FONT:THIS SETS FONT,FONT STYLE AND FONT SIZE.ENABLED:VALUE TRUE/FALSE DETERMINES WHETHER IT RESPONDS TO AN EVENT OR NOT.EVENTSCLICK:THIS EVENT IS TRIGGERED WHEN IT IS SELECTED BY CLIICKING ON IT.

LET US NOW CREATE AN APPLICATION LET US NOW CREATE AN APPLICATION USING USING ALL THE COMMANDS DISCUSSED ALL THE COMMANDS DISCUSSED PREVIOUSLYPREVIOUSLYTHE STEPS TO CREATE ,EXECUTE AND SAVE A VB

APPLICATION ARE:1)SELECT PROGRAMS MICROSOFT VISUAL BASIC 6.0.2)IN THE NEW PROJECT WINDOW,SELECT STANDARD. EXE.TH FORM WILL APPEAR ON THE SCREEN.3)NOTICE THAT THE PROPERTIES OF THE FORM WILL

APPEAR IN THE PROPERTIES WINDOW. i. SELECT CAPTION , AND TYPE ‘DISPLAY MESSAGE’.

ii SELECT BackColor , AND CHANGE IT TO ORANGE.(FIG 1.25)

4)PLACE THE LABEL ON THE FORM AND CHANGE ITS

PROPERIES AS SHOWN BELOW:

PROPERTIES SETTINGS

CAPTION ENTER YOUR NAME

FONT 12,BOLD

BackColor SAME AS FORM

5)PLACE ANOTHER LABEL ON THE FORM AND CHANGE IN PROPERTIES AS SHOWN BELOW:

PROPERTIES SETTINGS

NAME lblmessage

FIG 1.25 CHANGED CAPTION AND BackColor

CAPTION (BLANK)[DELETE LABEL 2 THAT APPEARS ON THE RIGHT SIDE] BorderStyle 1-FIXED SINGLE FONT 12,BOLD

6) PLACE THE TEXTBOX ON THE FORM AND CHANGE ITS PROPERTIES AS SHOWN BELOW:

PROPERTIES SETTING NAME txtname TEXT (BLANK) FONT 12,BOLD

7)PLACE COMMAND BUTON ON THE FORM AND CHANGE ITS PROPERTIES AS SHOWN BELOW:

PROPERTIES SETTING NAME cmdok

CAPTION OK

FONT 12,BOLD 8)PLACE ANOTHER COMMAND BUTTON ON THE FORM AND CHANGE ITS PROPERTIES AS SHOWN BELOW:

PROPERTIES CONTROLS

NAME cmdEXIT

CAPTION EXIT

FONT 12 ,BOLD

9)TO WRITE THE CODE,DOUBLE-CLICK ON THE OK

COMMAND BUTTON TO GET THE CODE TEMPLATE.WRITE

THE CODE AS SHOWN IN FIG 1.26

10)CLICK ON THE VIEW OBJECT BUTTON IN THE PROJECT

EXPLORER WINDOW TO RETURN TO THE FORM.

11)DOUBLE-CLICK ON THE EXIT COMAND BUTTON TO GET

CODE TEMPLATE.WRITE THE CODE AS SHOWN IN

FIG.1.27

FIG 1.26 VB CODE

12) TO SAVE THIS VB APPLICATION,SELECT FILE

SAVE PROJECT AS.THIS FIRST SAVES THE FORM AND

THEN THE PROJECT.

13)TO RUN THIS APPLICATION,PRESS F5 OR CLICK THE

START BUTTON ON THE TOOLBAR.TRICKY TERMS

GUI-(GRAPHICAL USER INTERFACE)IT ENABLES THE USER TO INTERACT WITH AN APPLICATIONTHROUGH THE USE OF ICONS,BUTTONS,MENUS,DIALOG BOXES AND WINDOWS.EVENT-DRIVEN PROGRAMMING-A PROGRAMMING BASED ON THE EVENT(ACTION)PERFORMED.INTEGRTED DEVLOPMENT ENVIRONMENT-INTEGRATING MANY DIFFERENT FUNCTIONS SUCH AS DESIGNING,EDITING,COMPILING,DEBUGGING IN A SINFGLE WINDOW.

FIG 1.27 VB CODE

THANK YOU

MADE BY-

MANTHAN SOMVANSHI

AHLCON INTERNATIONAL SCHOOL