144.txt

VB文章集（含API、窗口、数据库、多媒体、系统、文件、等等）

自动出现动画、进度和确认的文件操作 
使用以下的 API ， 得到与资源管理器相同的感觉！
Private Type SHFILEOPSTRUCT 
hwnd As Long 
wFunc As Long
pFrom As String 
pTo As String 
fFlags As Integer
fAnyOperationsAborted As Long 
hNameMappings As Long
lpszProgressTitle As String '只有在 FOF_SIMPLEPROGRESS 时用
End Type

Private Declare Function SHFileOperation Lib _
"shell32.dll" Alias "SHFileOperationA" (lpFileOp _
As SHFILEOPSTRUCT) As Long

'wFunc 常数
'FO_COPY 把 pFrom 文件拷贝到 pTo。
Const FO_COPY = &H2
'FO_DELETE 删除 pFrom 中的文件（pTo 忽略）。
Const FO_DELETE = &H3
'FO_MOVE 把 pFrom 文件移动到 pTo。
Const FO_MOVE = &H1

'fFlag 常数
'FOF_ALLOWUNDO 允许 Undo 。
Const FOF_ALLOWUNDO = &H40
'FOF_NOCONFIRMATION 不显示系统确认对话框。
Const FOF_NOCONFIRMATION = &H10
'FOF_NOCONFIRMMKDIR 不提示是否新建目录。
Const FOF_NOCONFIRMMKDIR = &H200
'FOF_SILENT 不显示进度对话框
Const FOF_SILENT = &H4

例子：
Dim SHFileOp As SHFILEOPSTRUCT
' 删除
SHFileOp.wFunc = FO_DELETE 
SHFileOp.pFrom = "c:\config.old" + Chr(0)
SHFileOp.fFlags = FOF_ALLOWUNDO + FOF_NOCONFIRMATION
Call SHFileOperation(SHFileOp)
' 删除多个文件
SHFileOp.wFunc = FO_DELETE
SHFileOp.pFrom = "c:\config.old" +Chr(0) + "c:\autoexec.old"+Chr(0)
SHFileOp.fFlags = FOF_ALLOWUNDO
Call SHFileOperation(SHFileOp)
' 拷贝
SHFileOp.wFunc = FO_COPY 
SHFileOp.pFrom = "c:\t\*.*"
SHFileOp.pTo = "d:\t\*.*"
SHFileOp.fFlags = FOF_ALLOWUNDO + FOF_NOCONFIRMMKDIR
Call SHFileOperation(SHFileOp)
' 移动
SHFileOp.wFunc = FO_MOVE 
SHFileOp.pFrom = "c:\config.old" + Chr(0)
SHFileOp.pTo = "d:\t"
SHFileOp.fFlags = FOF_ALLOWUNDO + FOF_NOCONFIRMATION
Call SHFileOperation(SHFileOp)