Visual Basic 60 Projects With Source Code May 2026

This is a standard VB6 project that introduces Common Dialog controls (for saving/opening files).

Interface:

Source Code:

Private Sub cmdOpen_Click()
    On Error GoTo ErrHandler
    ' Set filters
    CommonDialog1.Filter = "Text Files (*.txt)|*.txt"
    CommonDialog1.ShowOpen
    ' Open the file
    Open CommonDialog1.FileName For Input As #1
    txtContent.Text = Input(LOF(1), 1)
    Close #1
    Exit Sub
ErrHandler:
' User clicked Cancel
Exit Sub
End Sub
Private Sub cmdSave_Click()
On Error GoTo ErrHandler
CommonDialog1.Filter = "Text Files (.txt)|.txt"
CommonDialog1.ShowSave
' Save the file
Open CommonDialog1.FileName For Output As #1
Print #1, txtContent.Text
Close #1
MsgBox "File Saved!", vbInformation
Exit Sub visual basic 60 projects with source code
ErrHandler:
Exit Sub
End Sub

Dim FirstNumber As Double
Dim SecondNumber As Double
Dim Operation As String
Dim ClearDisplay As Boolean
Private Sub Form_Load()
    txtDisplay.Text = ""
    ClearDisplay = False
End Sub
Private Sub cmdNumber_Click(Index As Integer)
    ' If we just calculated something, clear the screen for new input
    If ClearDisplay = True Then
        txtDisplay.Text = ""
        ClearDisplay = False
    End If
' Append the clicked number to the display
    txtDisplay.Text = txtDisplay.Text & Index
End Sub
Private Sub cmdOperator_Click(Index As Integer)
    ' Store the first number and the operation type
    FirstNumber = Val(txtDisplay.Text)
Select Case Index
        Case 0: Operation = "+"
        Case 1: Operation = "-"
        Case 2: Operation = "*"
        Case 3: Operation = "/"
    End Select
ClearDisplay = True
End Sub
Private Sub cmdEquals_Click()
    SecondNumber = Val(txtDisplay.Text)
    Dim Result As Double
' Perform the calculation
    Select Case Operation
        Case "+": Result = FirstNumber + SecondNumber
        Case "-": Result = FirstNumber - SecondNumber
        Case "*": Result = FirstNumber * SecondNumber
        Case "/":
            If SecondNumber <> 0 Then
                Result = FirstNumber / SecondNumber
            Else
                MsgBox "Cannot divide by zero", vbCritical
                Exit Sub
            End If
    End Select
txtDisplay.Text = Result
    ClearDisplay = True
End Sub
Private Sub cmdClear_Click()
    txtDisplay.Text = ""
    FirstNumber = 0
    SecondNumber = 0
    Operation = ""
End Sub

Once you master a VB6 project, consider these upgrade paths: