by Nadeem Gulzar Rana (3 Submissions)
Category: Math/Dates
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Sat 30th September 2000
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Caculater with color display control
API Declarations
Dim oper2 As Double
Dim pop As String
Dim result As Double
Dim op As String
Public act As Integer
VBcoders
Private Sub c_Click(Index As Integer)
display.Caption = 0
oper2 = 0
oper1 = 0
result = 0
op = "+"
End Sub
Private Sub c_LostFocus(Index As Integer)
display.Caption = ""
End Sub
Private Sub Command1_Click()
Unload Me
End Sub
Private Sub Command1_LostFocus()
display.Caption = ""
End Sub
Private Sub Command2_Click()
End Sub
Private Sub dig_Click(Index As Integer)
display.Caption = display.Caption + dig(Index).Caption
End Sub
Private Sub div_Click(Index As Integer)
If op = "+" Then
oper1 = Val(display.Caption) + oper2
ElseIf op = "-" Then oper1 = oper2 - Val(display.Caption)
ElseIf op = "*" Then oper1 = oper2 * Val(display.Caption)
End If
If op = "/" Then
If Val(display.Caption) = 0 Then
MsgBox "Can't Divide by Zero!!"
Else
oper1 = oper2 / Val(display.Caption)
End If
End If
If op = "" Then oper1 = Val(display.Caption)
oper2 = oper1
op = "/"
pop = op
display.Caption = oper2
End Sub
Private Sub div_LostFocus(Index As Integer)
display.Caption = ""
End Sub
Private Sub eq_Click(Index As Integer)
If op = "+" Then
result = Val(display.Caption) + oper2
End If
If op = "-" Then
result = oper2 - Val(display.Caption)
End If
If op = "/" Then
If Val(display.Caption) = 0 Then
MsgBox "Can't Divide by Zero!!"
Else
result = oper2 / Val(display.Caption)
End If
End If
If op = "*" Then
result = oper2 * Val(display.Caption)
End If
display.Caption = result
op = "+"
oper1 = 0
oper2 = 0
End Sub
Private Sub Form_Load()
display.Caption = 0
oper2 = 0
oper1 = 0
result = 0
op = "+"
End Sub
Private Sub Form_Paint()
act = 1
display.Caption = 0
Command1.SetFocus
End Sub
Private Sub HScroll1_Change()
If act = 1 Then
display.BackColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
ElseIf act = 2 Then Form1.BackColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
ElseIf act = 3 Then display.ForeColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
End If
End Sub
Private Sub HScroll2_Change()
If act = 1 Then
display.BackColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
ElseIf act = 2 Then Form1.BackColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
ElseIf act = 3 Then display.ForeColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
End If
End Sub
Private Sub HScroll3_Change()
If act = 1 Then
display.BackColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
ElseIf act = 2 Then Form1.BackColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
ElseIf act = 3 Then display.ForeColor = RGB(HScroll1.Value, HScroll2.Value, HScroll3.Value)
End If
End Sub
Private Sub minus_Click(Index As Integer)
If op = "+" Then
oper1 = Val(display.Caption) + oper2
ElseIf op = "-" Then oper1 = oper2 - Val(display.Caption)
ElseIf op = "*" Then oper1 = oper2 * Val(display.Caption)
End If
If op = "/" Then
If Val(display.Caption) = 0 Then
MsgBox "Can't Divide by Zero!!"
Else
oper1 = oper2 / Val(display.Caption)
End If
End If
If op = "" Then oper1 = oper2 - Val(display.Caption)
oper2 = oper1
op = "-"
pop = op
display.Caption = oper2
End Sub
Private Sub minus_LostFocus(Index As Integer)
display.Caption = " "
End Sub
Private Sub mul_Click(Index As Integer)
If op = "+" Then
oper1 = Val(display.Caption) + oper2
ElseIf op = "-" Then oper1 = oper2 - Val(display.Caption)
ElseIf op = "*" Then oper1 = oper2 * Val(display.Caption)
End If
If op = "/" Then
If Val(display.Caption) = 0 Then
MsgBox "Can't Divide by Zero!!"
Else
oper1 = oper2 / Val(display.Caption)
End If
End If
If op = "" Then oper1 = oper2 * Val(display.Caption)
oper2 = oper1
op = "*"
pop = op
display.Caption = oper2
End Sub
Private Sub mul_LostFocus(Index As Integer)
display.Caption = ""
End Sub
Private Sub Option1_Click()
act = 1
End Sub
Private Sub Option2_Click()
act = 2
End Sub
Private Sub Option3_Click()
act = 3
End Sub
Private Sub per_Click()
If oper1 <> 0 And Val(display.Caption) <> 0 Then
oper1 = Val(display.Caption) * oper1 / 100
display.Caption = oper1
Else
display.Caption = 0
End If
End Sub
Private Sub plus_Click(Index As Integer)
If op = "+" Then
oper1 = Val(display.Caption) + oper2
ElseIf op = "-" Then oper1 = oper2 - Val(display.Caption)
ElseIf op = "*" Then oper1 = oper2 * Val(display.Caption)
End If
If op = "/" Then
If Val(display.Caption) = 0 Then
MsgBox "Can't Divide by Zero!!"
Else
oper1 = oper2 / Val(display.Caption)
End If
End If
If op = "" Then oper1 = Val(display.Caption) + oper2
oper2 = oper1
op = "+"
pop = op
display.Caption = oper2
End Sub
Private Sub plus_LostFocus(Index As Integer)
display.Caption = " "
End Sub
Private Sub sqrt_Click()
display.Caption = Sqr(display.Caption)
End Sub
Private Sub upon_Click(Index As Integer)
display.Caption = 1 / Val(display.Caption)
End Sub
Private Sub upon_LostFocus(Index As Integer)
'display.Caption = ""
End Sub
