按照要求,已经完成,只要在窗体中做一个比较大的文本框控件,一个横向滚动条控件,两个命令按钮空间,一个定时器控件,加上下面的代码就可以运行了。
Private Sub Command1_Click()
Timer1.Interval = 500
End Sub
Private Sub Command2_Click()
Timer1.Interval = 0
End Sub
Private Sub Form_Load()
Command1.Caption = "放大"
Command2.Caption = "停止"
HScroll1.Min = 20
HScroll1.Max = 300
End Sub
Private Sub HScroll1_Change()
Timer1.Interval = HScroll1.Value
End Sub
Private Sub Timer1_Timer()
Text1.FontSize = Text1.FontSize + 1
If Text1.FontSize > 60 Then Text1.FontSize = 9
End Sub