recyclebin.frm

vb得100个编程实例

VERSION 5.00
Begin VB.Form RecycleBin 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "清空回收站"
   ClientHeight    =   2115
   ClientLeft      =   2715
   ClientTop       =   1770
   ClientWidth     =   4245
   Icon            =   "RecycleBin.frx":0000
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2115
   ScaleWidth      =   4245
   ShowInTaskbar   =   0   'False
   Begin VB.CommandButton Command2 
      Caption         =   "清空回收站（不确认）"
      Height          =   1050
      Left            =   2160
      Picture         =   "RecycleBin.frx":0442
      Style           =   1  'Graphical
      TabIndex        =   1
      Top             =   210
      Width           =   1500
   End
   Begin VB.CommandButton Command1 
      Caption         =   "清空回收站(确认)"
      Height          =   1050
      Left            =   570
      Picture         =   "RecycleBin.frx":0884
      Style           =   1  'Graphical
      TabIndex        =   0
      Top             =   210
      Width           =   1500
   End
End
Attribute VB_Name = "RecycleBin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Declare Function SHEmptyRecycleBin Lib "shell32.dll" Alias "SHEmptyRecycleBinA" _
(ByVal hwnd As Long, ByVal pszRootPath As String, ByVal dwFlags As Long) As Long

Private Declare Function SHUpdateRecycleBinIcon Lib "shell32.dll" () As Long
Private Const SHERB_NOCONFIRMATION = &H1
Private Const SHERB_NOPROGRESSUI = &H2
Private Const SHERB_NOSOUND = &H4

Private Sub Command1_Click()
 Dim retval As Long  ' return value
    ' 清空回收站, 确认
    retval = SHEmptyRecycleBin(RecycleBin.hwnd, "", SHERB_NOPROGRESSUI)
    ' 若有错误出现，则返回回收站图示
        If retval <> 0 Then  ' error
        retval = SHUpdateRecycleBinIcon()
    End If
End Sub

Private Sub Command2_Click()
    Dim retval As Long  ' return value
    ' 清空回收站, 不确认
    retval = SHEmptyRecycleBin(RecycleBin.hwnd, "", SHERB_NOCONFIRMATION)
      ' 若有错误出现，则返回回收站图示
    If retval <> 0 Then  ' error
        retval = SHUpdateRecycleBinIcon()
    End If
    Command1_Click
End Sub