?? cdplayer.frm
字號:
VERSION 5.00
Object = "{C1A8AF28-1257-101B-8FB0-0020AF039CA3}#1.1#0"; "MCI32.OCX"
Begin VB.Form CDPlayer
BorderStyle = 1 'Fixed Single
Caption = "CD Player"
ClientHeight = 1785
ClientLeft = 45
ClientTop = 330
ClientWidth = 3720
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 1785
ScaleWidth = 3720
StartUpPosition = 3 'Windows Default
Begin VB.TextBox txtCurrentTrack
Enabled = 0 'False
Height = 285
Left = 1320
TabIndex = 6
Top = 720
Width = 2295
End
Begin VB.TextBox txtTrackLength
Enabled = 0 'False
Height = 285
Left = 1320
TabIndex = 5
Top = 1080
Width = 2295
End
Begin VB.TextBox txtTotalTracks
Enabled = 0 'False
Height = 285
Left = 1320
TabIndex = 4
Top = 1440
Width = 2295
End
Begin MCI.MMControl MMControl1
Height = 450
Left = 120
TabIndex = 0
Top = 120
Width = 3540
_ExtentX = 6244
_ExtentY = 794
_Version = 393216
DeviceType = ""
FileName = ""
End
Begin VB.Label lblTotalTracks
Caption = "Total Tracks:"
Height = 255
Left = 120
TabIndex = 3
Top = 1440
Width = 1215
End
Begin VB.Label lblTrackLength
Caption = "Track Length:"
Height = 255
Left = 120
TabIndex = 2
Top = 1110
Width = 1215
End
Begin VB.Label lblCurrentTrack
Caption = "Current Track:"
Height = 255
Left = 120
TabIndex = 1
Top = 750
Width = 1215
End
End
Attribute VB_Name = "CDPlayer"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' Fig. 20.7
' Using the Microsoft Multimedia MCI Control
' as an audio CD player.
Option Explicit
Private Sub Form_Load()
MMControl1.Notify = False
MMControl1.Wait = True
MMControl1.Shareable = False
MMControl1.DeviceType = "CDAudio"
MMControl1.Command = "Open"
txtTotalTracks.Text = Format$(MMControl1.Tracks, "00")
End Sub
Private Sub Form_Unload(Cancel As Integer)
MMControl1.Command = "Stop"
MMControl1.Command = "Close"
End Sub
Private Sub MMControl1_NextCompleted(Errorcode As Long)
Call UpdateInformation
End Sub
Private Sub MMControl1_PrevCompleted(Errorcode As Long)
Call UpdateInformation
End Sub
Private Sub MMControl1_StatusUpdate()
Call UpdateInformation
End Sub
Private Sub UpdateInformation()
Dim min1 As Integer, min2 As Integer
Dim sec1 As Integer, sec2 As Integer
txtCurrentTrack.Text = Format$(MMControl1.Track, "00")
txtTrackLength.Text = _
Format$(MMControl1.TrackLength And &HFF, "00") & ":" & _
Format$((MMControl1.TrackLength And &HFF00) \ &H10000, _
"00")
End Sub
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