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Author Topic: PositionChange EventHandler  (Read 4872 times)

sak2005

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PositionChange EventHandler
« on: July 10, 2015, 07:59:28 AM »

I not found thread code delegate  PositionChanging EventHandler (Timer Position) , Help me :)
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Re: PositionChange EventHandler
« Reply #1 on: July 10, 2015, 10:25:17 AM »

Hello,

also in this case I cannot understand what you exactly mean:  please, try to be more specific and detailed in your questions and, by the way, you should at least specify which of our components you are speaking about  :)

Kind Regards

Severino Delaurenti
MultiMedia Soft
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sak2005

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Re: PositionChange EventHandler
« Reply #2 on: July 10, 2015, 10:44:40 AM »

Hello,

also in this case I cannot understand what you exactly mean:  please, try to be more specific and detailed in your questions and, by the way, you should at least specify which of our components you are speaking about  :)

Kind Regards

Severino Delaurenti
MultiMedia Soft

The DJ studio has events thread is Song startting event, Song pausing event and Song stopping event , but has not event thread position changing is timer for song current postion.
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Re: PositionChange EventHandler
« Reply #3 on: July 10, 2015, 12:06:28 PM »

Hello,

now it's clear what you need  :)
Effectively there is no event provided for this purpose: the suggestion is to use the same approach used in some of the samples, for example the TestPlayers sample, which create an instance of a timer (where you can select the delay) and, inside the timer's event handler, perform a call to the SoundPositionGet method or, in alternative if you need to display a string of the current position, a call to the SoundPositionStringGet method.

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Severino Delaurenti
MultiMedia Soft
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sak2005

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Re: PositionChange EventHandler
« Reply #4 on: July 10, 2015, 11:33:03 PM »

Hello,

now it's clear what you need  :)
Effectively there is no event provided for this purpose: the suggestion is to use the same approach used in some of the samples, for example the TestPlayers sample, which create an instance of a timer (where you can select the delay) and, inside the timer's event handler, perform a call to the SoundPositionGet method or, in alternative if you need to display a string of the current position, a call to the SoundPositionStringGet method.

Kind regards

Severino Delaurenti
MultiMedia Soft

I'm not want using Timer1 on the Form1 for changing current sound position. 
But, i wanted Delegate Timer EventHandler and Current Position Change EventHandler.
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Re: PositionChange EventHandler
« Reply #5 on: July 11, 2015, 12:24:15 AM »

Hello,

if you need to change the current sound position the way to go is the SeekSound method.

Kind regards

Severino Delaurenti
MultiMedia Soft
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sak2005

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Re: PositionChange EventHandler
« Reply #6 on: July 11, 2015, 06:16:21 AM »

Hello,

if you need to change the current sound position the way to go is the SeekSound method.

Kind regards

Severino Delaurenti
MultiMedia Soft

The SeekSound method using with mouse scrolling event method.
It cann't using with timer position events.

EG: my sample codes

Class sample:
Code: [Select]
Option Explicit Off
Option Strict On
Imports AMP3DJLib
Imports AxAMP3DJLib
Public NotInheritable Class AxDjStudio
    Inherits Object
    Private Shared WithEvents AxAmp3dj1 As AxAmp3dj
    Private Shared sPlayer As Short
    Private Shared sFilename As String
    Shared Sub New()
        AxAmp3dj1 = New AxAmp3dj
        sPlayer = 0
        sFilename = String.Empty
    End Sub
#Region "DjStudio methods Fields"
    Public Shared Function InitSound(ByVal nTotalPlayers As Short, ByVal hWndParent As Integer) As Short
        Return AxAmp3dj1.InitDJSystem(nTotalPlayers, hWndParent, 0, 0, 0, -1)
    End Function
    Public Shared Sub ControlAdd(ByVal win As Control)
        win.Controls.Add(AxAmp3dj1)
        Return
    End Sub
    Public Shared Function LoadSound(ByVal nPlayer As Short, ByVal strFilename As String) As enumErrorCodes
        sFilename = strFilename
        sPlayer = nPlayer
        Return AxAmp3dj1.LoadSound(sPlayer, sFilename)
    End Function
    Public Shared Function PlaySound(ByVal nPlayer As Short) As enumErrorCodes
        sPlayer = nPlayer
        PosTime.Enabled = True
        Return AxAmp3dj1.PlaySound(sPlayer)
    End Function
    Public Shared Function PauseSound(ByVal nPlayer As Short) As enumErrorCodes
        sPlayer = nPlayer
        Return AxAmp3dj1.PauseSound(sPlayer)
    End Function
    Public Shared Function StopSound(ByVal nPlayer As Short) As enumErrorCodes
        sPlayer = nPlayer
        Return AxAmp3dj1.StopSound(sPlayer)
    End Function
    Public Shared Function Duration(ByVal nPlayer As Short) As Integer
        sPlayer = nPlayer
        Return AxAmp3dj1.GetSoundDuration(sPlayer)
    End Function
    Public Shared Function DurationString(ByVal nPlayer As Short, ByVal formats As String) As String
        sPlayer = nPlayer
        Select Case formats
            Case "mm:ss"
                Return AxAmp3dj1.SoundDurationStringGet(sPlayer, enumBoolean.BOOL_FALSE, enumBoolean.BOOL_FALSE, ":", ":", 0, enumBoolean.BOOL_TRUE)
            Case Else
                GoTo LIO
        End Select
LIO:
        Return Nothing
    End Function
    Public Shared Function PositionString(ByVal nPlayer As Short, ByVal formats As String) As String
        sPlayer = nPlayer
        Select Case formats
            Case "mm:ss"
                Return AxAmp3dj1.GetCurrentPosString(sPlayer, enumBoolean.BOOL_FALSE, enumBoolean.BOOL_FALSE)
            Case Else
                GoTo LIO
        End Select
LIO:
        Return Nothing
    End Function
    Public Shared Function MaxPosition(ByVal nPlayer As Short) As Integer
        sPlayer = nPlayer
        Return Duration(sPlayer)
    End Function
    Public Shared Function CurrentPosition(ByVal nPlayer As Short) As Integer
        sPlayer = nPlayer
        Return AxAmp3dj1.GetCurrentPos(sPlayer)
    End Function
    Public Shared Function SetPosition(ByVal nPlayer As Short, ByVal nOffset As Integer) As enumErrorCodes
        sPlayer = nPlayer
        Return AxAmp3dj1.SeekSound(sPlayer, nOffset)
    End Function
    Public Shared Function Status(ByVal nPlayer As Short) As String
        sPlayer = nPlayer
        Dim retStatus As String = Nothing
        Select Case AxAmp3dj1.GetPlayerStatus(sPlayer)
            Case enumStates.SOUND_BUFFERING
                retStatus = "Buffering"
            Case enumStates.SOUND_NONE
                retStatus = "None"
            Case enumStates.SOUND_PAUSED
                retStatus = "Paused"
            Case enumStates.SOUND_PLAYING
                retStatus = "Playing"
            Case enumStates.SOUND_STOPPED
                retStatus = "Stopped"
            Case Else
                Exit Select
        End Select
        Return retStatus
    End Function
    Public Shared Function GetFileInfo() As String
        Dim s As String = FileIO.FileSystem.GetFileInfo(sFilename).FullName.ToString
        Dim parts As String() = s.Split(New Char() {"\"c})
        Dim retPath As String = Nothing
        For Each part As String In parts
            retPath &= part & vbCrLf
        Next part
        Return retPath
    End Function
#End Region
#Region "DjStudio Events Fields"
    Public Shared Sub SyncTimeObject(ByVal hWnd As Form)
        PosTime.SynchronizingObject = hWnd
        PosTime.Enabled = False
    End Sub
    Private Shared Sub PosTime_Elapsed(ByVal sender As Object, ByVal e As EventArgs) Handles PosTime.Elapsed
        Try
            RaiseEvent PositionChange(sender, e)
            If AxAmp3dj1.GetPlayerStatus(sPlayer) = enumStates.SOUND_STOPPED Then
                PosTime.Enabled = False
                RaiseEvent SoundStopping(sender, New EventArgs)
            End If
        Catch
            PosTime.Enabled = False
            RaiseEvent SoundEnding(sender, New EventArgs)
        End Try
    End Sub
    Private Shared WithEvents PosTime As New System.Timers.Timer
    Public Shared Event PositionChange(ByVal sender As Object, ByVal e As EventArgs)
    Public Shared Event SoundEnding As EventHandler
    Public Shared Event SoundStopping As EventHandler
#End Region
End Class

Form sample:
Code: [Select]
Option Explicit Off
Option Strict On
Imports System
Public Class Form1
    Inherits Form
    Private btnLoad As Button
    Private btnPlay As Button
    Private btnPause As Button
    Private btnStop As Button
    Private lblDuration As Label
    Private lblPosition As Label
    Private lblStatus As Label
    Private lblTag As Label
    Private ofdlg As OpenFileDialog
    Private trackPos As TrackBar
    Private nPlayer As Short
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        If AxDjStudio.InitSound(1, Me.Handle.ToInt32) = 0 Then
            MsgBox("Error! init sound system.")
            Exit Sub
        End If
    End Sub
    Public Sub New()
        MyBase.New()
        Me.StartPosition = FormStartPosition.CenterScreen
        InitializeComponent()
        ofdlg = New OpenFileDialog
        btnLoad = New Button
        btnLoad.Text = "Load"
        btnPlay = New Button
        btnPlay.Text = "Play"
        btnPlay.Location = New Point(0, btnLoad.Height)
        btnPause = New Button
        btnPause.Text = "Pause"
        btnPause.Location = New Point(0, btnLoad.Height + btnPlay.Height)
        btnStop = New Button
        btnStop.Text = "Stop"
        btnStop.Location = New Point(0, btnLoad.Height + btnPlay.Height + btnPause.Height)
        lblDuration = New Label
        lblDuration.Text = Format(0, "00:00")
        lblDuration.AutoSize = True
        lblDuration.Location = New Point(0, 100)
        lblPosition = New Label
        lblPosition.Text = Format(0, "00:00")
        lblPosition.AutoSize = True
        lblPosition.Location = New Point(240, 100)
        lblStatus = New Label
        lblStatus.Text = "Stopped"
        lblStatus.Location = New Point(120, 140)
        lblStatus.AutoSize = True
        lblTag = New Label
        lblTag.Text = "TagInfo:"
        lblTag.Location = New Point(0, 160)
        lblTag.AutoSize = True
        trackPos = New TrackBar
        trackPos.Width = 200
        trackPos.Location = New Point(40, 100)
        Me.Controls.AddRange(New Control() {btnLoad, btnPlay, btnPause, btnStop, lblDuration, lblPosition, lblStatus, lblTag, trackPos})
        AxDjStudio.ControlAdd(Me)
        nPlayer = 0
        AxDjStudio.SyncTimeObject(Me)
        AddHandler btnLoad.Click, AddressOf btnLoad_Click
        AddHandler btnPlay.Click, AddressOf btnPlay_Click
        AddHandler btnPause.Click, AddressOf btnPause_Click
        AddHandler btnStop.Click, AddressOf btnStop_Click
        AddHandler AxDjStudio.PositionChange, AddressOf AxDjStudio_PositionChange
        AddHandler trackPos.Scroll, AddressOf trackPos_Scroll
        AddHandler AxDjStudio.SoundEnding, AddressOf AxDjStudio_SoundEnding
        AddHandler AxDjStudio.SoundStopping, AddressOf AxDjStudio_SoundStopping
    End Sub
    Private Sub AxDjStudio_PositionChange(ByVal sender As Object, ByVal e As EventArgs)
        lblPosition.Text = AxDjStudio.PositionString(nPlayer, "mm:ss")
        trackPos.Value = AxDjStudio.CurrentPosition(nPlayer)
        lblStatus.Text = AxDjStudio.Status(nPlayer)
    End Sub
    Private Sub AxDjStudio_SoundEnding(ByVal sender As Object, ByVal e As EventArgs)
        lblPosition.Text = Format(0, "00:00")
        trackPos.Value = trackPos.Minimum
        lblStatus.Text = "Done"
        MsgBox("Ended")
    End Sub

    Private Sub AxDjStudio_SoundStopping(ByVal sender As Object, ByVal e As EventArgs)
        lblPosition.Text = Format(0, "00:00")
        trackPos.Value = trackPos.Minimum
        MsgBox("Stopped")
    End Sub
    Private Sub trackPos_Scroll(ByVal sender As Object, ByVal e As EventArgs)
        AxDjStudio.SetPosition(nPlayer, trackPos.Value)
    End Sub
    Private Sub btnLoad_Click(ByVal sender As Object, ByVal e As EventArgs)
        If ofdlg.ShowDialog = Windows.Forms.DialogResult.OK Then
            If Not AxDjStudio.LoadSound(nPlayer, ofdlg.FileName) = AMP3DJLib.enumErrorCodes.ERR_NOERROR Then
                MsgBox("Error! file not support.")
                Exit Sub
            End If
            lblDuration.Text = AxDjStudio.DurationString(nPlayer, "mm:ss")
            trackPos.Maximum = AxDjStudio.MaxPosition(nPlayer)
            lblTag.Text = AxDjStudio.GetFileInfo()
        End If
    End Sub
    Private Sub btnPlay_Click(ByVal sender As Object, ByVal e As EventArgs)
        AxDjStudio.PlaySound(nPlayer)
    End Sub
    Private Sub btnPause_Click(ByVal sender As Object, ByVal e As EventArgs)
        AxDjStudio.PauseSound(nPlayer)
    End Sub
    Private Sub btnStop_Click(ByVal sender As Object, ByVal e As EventArgs)
        AxDjStudio.StopSound(nPlayer)
    End Sub
End Class
« Last Edit: July 11, 2015, 06:19:31 AM by sak2005 »
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Re: PositionChange EventHandler
« Reply #7 on: July 11, 2015, 08:46:30 AM »

Hello,

probably I still don't have clear what you really need to obtain but, if your need is the availability of an event reporting in real-time the current playback position, as already mentioned some post ago this is not available inside the component. If your need is different, please, try to explain more clearly and with some more detail what you need to obtain.

Kind regards

Severino Delaurenti
MultiMedia Soft
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sak2005

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Re: PositionChange EventHandler
« Reply #8 on: July 11, 2015, 09:22:02 AM »

Hello,

probably I still don't have clear what you really need to obtain but, if your need is the availability of an event reporting in real-time the current playback position, as already mentioned some post ago this is not available inside the component. If your need is different, please, try to explain more clearly and with some more detail what you need to obtain.

Kind regards

Severino Delaurenti
MultiMedia Soft

I'm basic programming and bad english. If something goes wrong, apologize.
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