vb.net实现简单的眼睛保护系统

1.前言：由于许多人使用电脑好长时间都不知道休息，我就是其中之一。我自从买了电脑之后，视力在不停的下降，身体也没有原来好了。对此我十分担心，为此我想到了自己做一个强制限制使用电脑时间，保护眼睛的小软件。我是用vb.net实现的！

2.基本原理：

我是通过两个Timer控件控制工作和休息时间，当工作时间过了之后。调用新窗口，新窗口是一个没有边框的全屏form并且不能关闭！只有你休息的时间过了窗体自动关闭，在过一段你工作的时间之后，电脑又将锁定，强制保护你的眼睛，休息时间和工作时间可以自己设定！但是我建议工作50分钟后，休息10分钟！

3.部分代码：

Public Class Form1

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

Me.Label5.Text = "系统当前时间：" & Now

End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

If Me.MaskedTextBox1.Text <> "" And Me.MaskedTextBox2.Text <> "" Then

Me.Timer2.Enabled = True

Me.Timer2.Interval = CInt(Me.MaskedTextBox1.Text) * 1000 * 60

Me.Hide()

Else

MsgBox("请你输入时间！")

End If

End Sub

Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick

Dim peng As New Form2()

Me.Timer2.Enabled = False

Me.Visible = False

peng.Show()

End Sub

Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing

Me.Hide()

e.Cancel = True

End Sub

Private Sub NotifyIcon1_MouseDoubleClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles NotifyIcon1.MouseDoubleClick

Me.Show()

End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Me.MaskedTextBox1.Text = 50

Me.MaskedTextBox2.Text = 10

End Sub

End Class

Public Class Form2

Dim i As Long = 0

Dim flag As Boolean = True

Private Sub Form2_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing

If flag Then

e.Cancel = True

End If

End Sub

Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Me.Timer1.Interval = CLng(Form1.MaskedTextBox2.Text) * 1000 * 60

Me.ProgressBar1.Minimum = 0

Me.ProgressBar1.Maximum = CLng(Form1.MaskedTextBox2.Text) * 60

End Sub

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

Form1.Timer2.Enabled = True

Me.Close()

End Sub

Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick

If i <= CInt(Form1.MaskedTextBox2.Text) * 60 Then

Me.Focus()

Me.TopMost = True

If i = CInt(Form1.MaskedTextBox2.Text) * 60 - 10 Then

flag = False

End If

Me.WindowState = FormWindowState.Maximized

i = i

1

Me.ProgressBar1.Value = i

End If

End Sub

End Class

4.小结:这个软件基本上实现了保护眼睛和身体的作用，可以阻止疯狂的使用电脑而不休息。对于保护好自己的眼睛和身体有重要的作用！特色：打开后不能关闭。除非在任务管理器中结束进程！需要.NET Framework支持。强制保护你的身体！有好的身体才有好的明天！建议用1分钟测试！

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