AxWindowsMediaPlayer播放多媒体[带循环功能]的实例
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一步步图例教我们如何引用com元件实现播放多媒体
Step1.工具箱=>滑鼠右鍵=>選擇項目
Step2.切換至『COM 元件』頁籤=>勾選Windows Media Player=>確定
Step3.會發現工具箱多了個Windows Media Player的控制項
使用AxWindowsMediaPlayer撥放多媒體
Step1.加入Windows Media Player控制項到設計表單，可看到如下的畫面。
Step2.依序加入控制項使介面如下圖所示。
Step3.撰寫控制項初始設定程式碼
此處是設定控制項的初始值，像是音量的最大值、最小值、目前的音量、與啟動Timer(用來偵測檔案總長度用)，值得注意的是AxWindowsMediaPlayer控制項的音量大小介於0~100之間，另外若不設定AutoStart = False則開啟檔案完程式就會自動撥放開啟的多媒體檔。
VB.NET
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.AxWindowsMediaPlayer1.settings.autoStart = False '設定不自動撥放 Me.tbarVolume.Minimum = 0 '設定音量調整Bar最小值為最小音量值(0) Me.tbarVolume.Maximum = 100 '設定音量調整Bar最大值為最大音量值(100) Me.tbarVolume.Value = Me.AxWindowsMediaPlayer1.settings.volume '設定音量調整Bar目前值為目前音量值 Me.Timer1.Enabled = True End Sub
C#
private void Form1_Load(object sender, EventArgs e) { this.axWindowsMediaPlayer1.settings.autoStart = false; //設定不自動撥放 this.tbarVolume.Minimum = 0; //設定音量調整Bar最小值為最小音量值(0) this.tbarVolume.Maximum = 100; //設定音量調整Bar最大值為最大音量值(100) this.tbarVolume.Value = this.axWindowsMediaPlayer1.settings.volume; //設定音量調整Bar目前值為目前音量值 this.timer1.Enabled = true; }
Step4.撰寫開啟程式碼
AxWindowsMediaPlayer控制項是去設定AxWindowsMediaPlayer.URL屬性值來達到多媒體檔案開啟的功能。
VB.NET
Private Sub btnOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOpen.Click If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then Me.AxWindowsMediaPlayer1.URL = OpenFileDialog1.FileName '開啟檔案 End If End Sub
C#
private void btnOpen_Click(object sender, EventArgs e) { if (openFileDialog1.ShowDialog() == DialogResult.OK) { this.axWindowsMediaPlayer1.URL = openFileDialog1.FileName; //開啟檔案 } }
Step5.撰寫撥放程式碼
這部份功能程式碼只需呼叫AxWindowsMediaPlayer.Ctlcontrols.play()即可。
VB.NET
Private Sub btnPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlay.Click Me.AxWindowsMediaPlayer1.Ctlcontrols.play() End Sub
C#
private void btnPlay_Click(object sender, EventArgs e) { this.axWindowsMediaPlayer1.Ctlcontrols.play(); }
Step6.撰寫停止程式碼
這部份功能程式碼只需呼叫AxWindowsMediaPlayer.Ctlcontrols.stop()即可。
VB.NET
Private Sub btnStop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStop.Click Me.AxWindowsMediaPlayer1.Ctlcontrols.stop() '停止播放 End Sub
C#
private void btnStop_Click(object sender, EventArgs e) { this.axWindowsMediaPlayer1.Ctlcontrols.stop(); //停止播放 }
Step7.撰寫暫停撥放程式碼
這部份功能程式碼只需呼叫AxWindowsMediaPlayer.Ctlcontrols.pause()即可。
VB.NET
Private Sub btnPause_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPause.Click Me.AxWindowsMediaPlayer1.Ctlcontrols.pause() '暫停撥放 End Sub
C#
private void btnPause_Click(object sender, EventArgs e) { this.axWindowsMediaPlayer1.Ctlcontrols.pause(); //暫停撥放 }
Step8.撰寫音量控制程式碼
這部份功能程式碼只需對AxWindowsMediaPlayer.settings.volume做屬性值的變更即可。
VB.NET
Private Sub tbarVolume_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tbarVolume.Scroll Me.AxWindowsMediaPlayer1.settings.volume = Me.tbarVolume.Value '改變音量大小 End Sub Private Sub btnIncreaseVolume_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnIncreaseVolume.Click Me.AxWindowsMediaPlayer1.settings.volume += 1 '音量大小+1 End Sub Private Sub btnDecreaseVolume_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDecreaseVolume.Click Me.AxWindowsMediaPlayer1.settings.volume -= 1 '音量大小-1 End Sub
C# '更多.net源码和教程，来自[乐博网 www.lob.cn]
private void tbarVolume_Scroll(object sender, EventArgs e) { this.axWindowsMediaPlayer1.settings.volume = this.tbarVolume.Value; //改變音量大小 } private void btnIncreaseVolume_Click(object sender, EventArgs e) { this.axWindowsMediaPlayer1.settings.volume += 1; //音量大小+1 } private void btnDecreaseVolume_Click(object sender, EventArgs e) { this.axWindowsMediaPlayer1.settings.volume -= 1; //音量大小-1 }
Step9.撰寫撥放位置控制程式碼
除需對AxWindowsMediaPlayer.Ctlcontrols.currentPosioion做屬性值的變更外，尚需利用AxWindowsMediaPlayer.currentMedia.duration去設定最大影片長度。
VB.NET
Private Sub tbarPlayLoaction_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tbarPlayLoaction.Scroll Me.AxWindowsMediaPlayer1.Ctlcontrols.currentPosition = tbarPlayLoaction.Value '改變撥放位置 End Sub Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick If Me.AxWindowsMediaPlayer1.currentMedia Is Nothing Then Return End If Me.tbarPlayLoaction.Maximum = CInt(Me.AxWindowsMediaPlayer1.currentMedia.duration) '設定撥放位置調整Bar最大值 End Sub
C#
private void tbarPlayLoaction_Scroll(object sender, EventArgs e) { this.axWindowsMediaPlayer1.Ctlcontrols.currentPosition = tbarPlayLoaction.Value; //改變撥放位置 } private void timer1_Tick(object sender, EventArgs e) { if (this.axWindowsMediaPlayer1.currentMedia == null) return; this.tbarPlayLoaction.Maximum = (int)this.axWindowsMediaPlayer1.currentMedia.duration; //設定撥放位置調整Bar最大值 }
乐博网补充2段循环播放的代码：
第一种：
If axWindowsMediaPlayer1.playState = WMPLib.WMPPlayState.wmppsStopped Then
axWindowsMediaPlayer1.Ctlcontrols.play()
End If
第二种：
axWindowsMediaPlayer1.settings.setMode("loop", True)
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