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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