form1.frm

本文件包含200个visual baisc实例

VERSION 5.00
Begin VB.Form Form1 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "控制光驱"
   ClientHeight    =   2130
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   3450
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2130
   ScaleWidth      =   3450
   StartUpPosition =   1  '所有者中心
   Begin VB.CommandButton Command3 
      Caption         =   "退出"
      Height          =   465
      Left            =   825
      TabIndex        =   2
      Top             =   1470
      Width           =   1710
   End
   Begin VB.CommandButton Command2 
      Caption         =   "关闭光驱"
      Height          =   465
      Left            =   825
      TabIndex        =   1
      Top             =   825
      Width           =   1710
   End
   Begin VB.CommandButton Command1 
      Caption         =   "打开光驱"
      Height          =   465
      Left            =   825
      TabIndex        =   0
      Top             =   195
      Width           =   1710
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Private Declare Function CDdoor Lib "winmm.dll" Alias "mciSendStringA" _
    (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, _
    ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long

Dim state1 As Boolean

Private Sub Command1_Click()
'打开光驱
  state1 = True
  Call CDdoor("set CDAudio door open", 0, 0, 0)
End Sub

Private Sub Command2_Click()
'关闭光驱
  state1 = False
  Call CDdoor("set CDAudio door closed", 0, 0, 0)
End Sub

Private Sub Command3_Click()
  End
End Sub