'Open New Project and put a textbox
'Write down this code on form

Private Sub Text1_MouseMove(Button As Integer, Shift As Integer, x As Single, Y As Single)
Dim t As Integer
t = Rnd * 5
Select Case t
Case 0
Text1.BackColor = vbWhite
Text1.ForeColor = vbBlack
Case 1
Text1.BackColor = vbGreen
Text1.ForeColor = vbWhite
Case 2
Text1.BackColor = vbRed
Text1.ForeColor = vbCyan
Case 3
Text1.BackColor = vbBlue
Text1.ForeColor = vbYellow
Case 4
Text1.BackColor = vbYellow
Text1.ForeColor = vbBlue
End Select

End Sub