
正文
关于vb.net钟的信息
提示:扫一扫查出行【扫一扫了解最新限行尾号】
复制提示
跪求用vb.net做一个小闹钟!!
'加个定时器,textbox ,button,label Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label1.Text = Now
If FF = Now And FF "2001-1-1" And Timer1.Tag = "" Then
Timer1.Tag = "1"
MsgBox("ff")
End If
End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
FF = TextBox1.Text
Timer1.Tag = ""
End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
FF = "2001-1-1"
End Sub'声音加个 AxMMControl控件 AxMMControl1.DeviceType = "waveaudio" ''''''''定义播放*.wav格式 AxMMControl1.FileName = "c:\1.wav" ''''''''载入文件, AxMMControl1.Command = "open" ''''''''打开载入的文件
AxMMControl1.From = 0 '从头开始
AxMMControl1.Command = "play"'保存时间,只要设定时把时间保存到文本文件就行,load 事件中读取,并对比是不是超时,.
相关问答
Q1: vb.net开发简单的时钟程序??高手救救我!
就
是
这
个
了
!
Hand类的代码:
Public MustInherit Class Hand
Protected gp As GraphicsPath = New GraphicsPath()
Protected gpBase As GraphicsPath = Nothing
Protected midX As Integer = 150 ‘默认的窗体
Protected midY As Integer = 150 ‘中心位置
‘构造器,得到窗体中心位置
Public Sub New(ByVal theForm As Form1)
midX = (theForm.ClientRectangle.Left + theForm.ClientRectangle.Right) / 2
midY = (theForm.ClientRectangle.Top + theForm.ClientRectangle.Bottom) / 2
End Sub
MustOverride Sub Transform(ByVal d As DateTime)
‘绘制指针路径
Overridable Sub Draw(ByVal g As Graphics)
Dim aPen As Pen = New Pen(Brushes.Black, 4F)
g.DrawPath(aPen, gp)
g.FillPath(Brushes.Black, gp)
aPen.Dispose()
End Sub
‘使用矩阵实现路径(gp)的旋转
Public Sub Rotate(ByVal angle As Double)
gp = CType(gpBase.Clone(), GraphicsPath)
Dim mTransform As Matrix = New Matrix()
mTransform.RotateAt(CType(angle,Single),NewPointF(midX,midY))
gp.Transform(mTransform)
End Sub
End Class
为了节省篇幅,上面的代码省略了引入命名空间的语句。
下面是分针(MinuteHand)类的定义:
Public Class MinuteHand
Inherits Hand
‘构造器,生成绘制分针的路径(gp)
Public Sub New(ByVal myForm As Form1)
MyBase.New(myForm)
gp.AddLine(midX, midY, midX, 45)
gp.AddLine(midX, 45, midX - 3, 50)
gp.AddLine(midX - 3, 50, midX + 3, 50)
gp.AddLine(midX + 3, 50, midX, 45)
gpBase = CType(gp.Clone(), GraphicsPath)
End Sub
‘Transform方法取得系统当前时间,并旋转时钟指针。
Public Overrides Sub Transform(ByVal d As DateTime)
Dim minuteTime As Double = (CDbl(d.Minute) + CDbl(d.Second / 60))
Dim angle As Double = (CDbl(minuteTime) / 60) * 360
Rotate(angle)
End Sub
End Class
对所有的指针旋转的方法都是相同的,因此在基类中实现。由于时针和秒针的实现与分针相似,所不同者,只在于构造器中绘制的指针路径不同和Transform方法中转动的角度不同,在这里就不在赘述了。
另外还需要提一下的是画时钟表面的代码,时钟表面用ClockFace类来实现。这个类首先画一个圆代表时钟,然后画上米老鼠的图案,最后在相应的位置画上数字1~12代表12个小时。
Public Sub Draw(ByVal g As Graphics)
DrawClockFace(g)
DrawImage(g)
DrawNumbers(g)
DrawPin(g)
End Sub
下面是ClockFace类的属性:
Private ClockRectangle As Rectangle
Private ClockFont As Font = New Font("Arial", 12)
Private midPoint As Point
Private ClockImage As Bitmap
Private Const IMAGEX As Integer = 50
Private Const IMAGEY As Integer = 50
DrawClockFace方法用来画时钟表面:
Private Sub DrawClockFace(ByVal g As Graphics)
g.FillEllipse(Brushes.White, ClockRectangle.Left + 10, ClockRectangle.Top + 10, ClockRectangle.Width - 20, ClockRectangle.Height - 20)
g.DrawEllipse(Pens.Black, ClockRectangle.Left + 10, ClockRectangle.Top + 10, ClockRectangle.Width - 20, ClockRectangle.Height - 20)
End Sub
然后用Graphics对象的DrawImage方法画出米老鼠的图片:
Private Sub DrawImage(ByVal g As Graphics)
Dim nWidth As Integer = ClockImage.Width
Dim nHeight As Integer = ClockImage.Height
Dim destRect As Rectangle = New Rectangle(midPoint.X - IMAGEX / 2, midPoint.Y - IMAGEY / 2, IMAGEX, IMAGEY)
g.DrawImage(ClockImage, destRect)
End Sub
数字在时钟上的位置是用sin和cos函数计算的:
Private Sub DrawNumbers(ByVal g As Graphics)
Dim count As Integer = 1
Dim a As Double
For a = 0 To 2 * Math.PI Step 2 * Math.PI / 12
Dim x As Double = (ClockRectangle.Width - 70) / 2 * Math.Cos(a - Math.PI / 3) + (ClockRectangle.Width - 70) / 2 + 25
Dim y As Double = (ClockRectangle.Width - 70) / 2 * Math.Sin(a - Math.PI / 3) + (ClockRectangle.Width - 70) / 2 + 20
g.DrawString(Convert.ToString(count), ClockFont, Brushes.Black, CType(x, Single), CType(y, Single), New StringFormat())
count += 1
Next
End Sub
最后是窗体文件(Form1.vb):
Public Class Form1
Inherits System.Windows.Forms.Form
Private MyMinuteHand As MinuteHand
Private MyHourHand As HourHand
Private MySecondHand As SecondHand
Private TheClockFace As ClockFace
Private FirstTick As Boolean = False
‘在窗体的OnPaint事件中取得Graphics对象
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
If (FirstTick = False) Then Exit Sub
Dim g As Graphics = e.Graphics
TheClockFace.Draw(g)
MyHourHand.Draw(g)
MyMinuteHand.Draw(g)
MySecondHand.Draw(g)
TheClockFace.DrawPin(g)
End Sub
‘计时器事件
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
MySecondHand.Transform(DateTime.Now)
MyHourHand.Transform(DateTime.Now)
MyMinuteHand.Transform(DateTime.Now)
FirstTick = True
Invalidate()
Q2: 怎样用vb.net作一个指针转动的钟表?(可设置时间日期,有闹铃功能)
你需要会用GDI+,也就是那个System.Drawing命名空间下的类.
给你说个思路,设Timer,到时间就用Form.Invalidate()函数重画窗口,在重画窗口的Form_Paint事件下面编写代码得到当前时间,再根据当前时间用GDI+画时钟.
Q3: VB.NET中怎么实现当时间达到设定时间时响铃??急急急。。在线等!谢谢了,大神帮忙啊
首先在form1上建立三个命令按钮,分别为command1(打开预启动的文件);command2(设定时间的按钮);第三个command3(即可启动)按钮可有可无;一个label1用来显示你预打开的文件名的路径;一个lbltime用来显示现在的时间;还有一个commondialog,它在工程菜单的部件中,你可把它加到工具箱中再开始使用;关于对话框你不必自己建,只要从应用程序向导中添加即可;一个timer,它的interval=500。 其次在form1的属性中设置为:startupposition=2-centerscreen和maxbutton=false;label1的属性中设置为:alignment=2-center。 外观大致是如图所示: 下面我们开始编程: OptionExplicit DimAlarmTime '申明变量 --------- PrivateSubCommand1_Click() Calldialog '调用dialog子程序 EndSub -------- PrivateSubCommand2_Click() AlarmTime=InputBox(“请输入你想设定的时间,例如(19:12:00)",“小闹钟") IfAlarmTime=“"ThenExitSub IfNotIsDate(AlarmTime)Then MsgBox“你所输入的不是时间格式,请重试!",,“Wrong" Else AlarmTime=CDate(AlarmTime) EndIf '判断输入的是否可转换成time格式 'isdate函数是判断输入的是否可转换成date格式 EndSub -------------- PrivateSubCommand3_Click() Calldeng '调用deng子程序 EndSub --------------- PrivateSubForm_Click() frmAbout.Show '显示关于对话框 EndSub ------------- PrivateSubForm_Load() Command3.Enabled=0 AlarmTime=“" '初始化时command3为不可用的 EndSub --------------- PrivateSubForm_Resize() IfWindowState=1Then mintime else caption=“小闹钟" EndIf '如果窗口被最小化,则调用mintime程序 EndSub --------------- PrivateSubmintime() Caption=Format(Time,“longTime") '使用长时间格式来显示时间 EndSub --------------- PrivateSubTimer1_Timer() IflblTime.CaptionCStr(Time)Then lblTime.Caption=Time EndIf '显示时间每秒钟的变化 IfTime=AlarmTimeThen Calldeng EndIf '判断如果现在的时间超过了设定的时间,则调用deng子程序 IfWindowState=1Then IfMinute(CDate(Caption))Minute(Time)Then mintime EndIf EndIf '最小化时显示时间每分钟的变化 EndSub ------------- Subdialog() CommonDialog1.Flags=cdlCFBoth CommonDialog1.ShowOpen Label1.Caption=CommonDialog1.filename IfLabel1“"Then Command3.Enabled=-1 Else ExitSub EndIf '把打开的文件名给于label1 '如果label1不为空时,则command3即可用 EndSub -------------- Subdeng() Dimss ss=Shell(Label1.Caption,1) End '启动指定的文件,并且结束小闹钟程序 EndSub 最后在about对话框中要提的是:在form_load中app.title表示你的应用程序的名字;app.major、minor、revision是关于应用程序的版本信息;lblDescription.Caption用于对本程序的一些说明描述之类的话;lblDisclaimer.Caption用于版权信息或警告等。 好了,至此我们已完成了一个简单的VB程序的编写,希望你能设计出更好的闹钟程序来!
Q4: 利用vb.net实现小闹钟功能
Private Declare Function mciSendStringA Lib "winmm.dll" _
(ByVal lpstrCommand As String, ByVal lpstrReturnString As String, _
ByVal uReturnLength As Integer, ByVal hwndCallback As Integer) As Integer
Function PlayMidiFile(ByVal MusicFile As String) As Boolean
If System.IO.File.Exists(MusicFile) Then
mciSendStringA("stop music", "", 0, 0)
mciSendStringA("close music", "", 0, 0)
mciSendStringA("open " MusicFile " alias music", "", 0, 0)
PlayMidiFile = mciSendStringA("play music", "", 0, 0) = 0
End If
End Function
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If TextBox1.Text = TimeOfDay Then
'具体提醒的东西,如你说的播放音乐
PlayMidiFile("自己添加路径")
End If
'时间格式要是这样的16:00:00
'timer的interval要设成1
'你还可以自己细化
End Sub
Q5: 想用vb.net做一个登陆界面 在这个界面显示一个指针时钟。就像下面的。谁有现成的例子么?
这个控件不是.net Fremawork自带的,是用户自己添加的控件,你可以去网上找这样的控件,在VS里添加引用就可以了
vb.net钟的介绍就聊到这里吧,感谢你花时间阅读本站内容,更多关于、vb.net钟的信息别忘了在本站进行查找喔。







