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MICROSOFT VISUAL BASIC 6.0

Basic Components

Key Events

Conditional Statements (If then ..Else)

Variables

Message Box/Input Box

Procedures & FunctionsASCII

Control Statements(Loops)

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Basic Components

Label

Frame

Checkbox

Text Box

Command Button

Option Button

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Command Button

Private Sub CMDcal_Click()<statement 1><statement 2>

End Sub

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Text BoxLabel

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Conditional Statements

IF CONDITION THENSTATEMENT 1

ELSESTATEMENT 2

END IF

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Conditional Statements

IF CONDITION 1 THENstatement 1

ELSE IF CONDITION 2 THENstatement 2

ELSE IF CONDITION 3 THENstatement 3

End IF

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KeyPress > SetFocus Event

Private Sub TXTN1_KeyPress(KeyAscii As Integer)

If KeyAscii = 13 ThenTXTN2.SetFocusEnd If

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Setting Variables

Dim X, Y, Z As Variant

PUBLIC, LOCAL, DIM, PRIVATE

Any Number of Variables for the requirement

Variant, Integer, Byte,String

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Setting Variables

It is not required to declare all the variables in theGENRAL DECRALARION.

Declare variables as the requirement

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Setting Variables

It is not required to declare all the variables in theGENRAL DECRALARION.

Declare variables as the requirement

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Message Boxes

Private Sub CMDplus_Click()

MsgBox "Testing Message Boxes", vbCritical + vbExclamation, "Warning"

End Sub

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Message Boxes > Capturing Return Value

Private Sub CMDplus_Click()Dim x As Stringx = MsgBox("Are you sure want to exit ? ", vbYesNo

+ vbCritical, "Confirmation") If x = vbYes Then End Else CMDplus.SetFocus

End If

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Message Boxes > Result into 2 Lines

Private Sub CMDplus_Click()MsgBox "Display Line 1" & vbCrLf & "Display

Line 2“,vbCritical + vbExclamation,"Warning"

End Sub

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Option Button

Private Sub OptionF_Click()Label1.Caption = "Female"End Sub

Private Sub OptionM_Click()Label1.Caption = "Male"

End Sub

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Check Boxes

Private Sub CheckMo_Click()If CheckMo.Value = 1 ThenLabel1.Caption = Val(Label1.Caption) + 10000ElseLabel1.Caption = Val(Label1.Caption) - 10000End IfEnd Sub

Private Sub CheckKey_Click()If CheckKey.Value = 1 ThenLabel1.Caption = Val(Label1.Caption) + 1500ElseLabel1.Caption = Val(Label1.Caption) - 1500End IfEnd Sub

Private Sub CheckSys_Click()If CheckSys.Value = 1 ThenLabel1.Caption = Val(Label1.Caption) + 25000ElseLabel1.Caption = Val(Label1.Caption) - 25000End IfEnd Sub

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Check Boxes

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Control Statements - LoopsFor LoopFor <exp1> to <exp2>

part A

next

exampleFor i=1 to 10Print “HNDE”

next

For i=1 to 10 step 2Print INext

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