Function CopyFile(Src As String, Dst As String) As SingleStatic Buf$
Dim BTest!, FSize! 'declare the needed variables
Dim Chunk%, F1%, F2%Const BUFSIZE = 1024 'set the buffer sizeIf Len(Dir(Dst)) Then 'check to see if the destination file already exists
'otherwise
Kill Dst 'delete the already found file, and carryon with the code
End If
On Error GoTo FileCopyError 'incase of error goto this label
F1 = FreeFile 'returns file number available
Open Src For Binary As F1 'open the source file
F2 = FreeFile 'returns file number available
Open Dst For Binary As F2 'open the destination file
FSize = LOF(F1)
BTest = FSize - LOF(F2)Do
If BTest < BUFSIZE Then
Chunk = BTest
Else
Chunk = BUFSIZE
End If
Buf = String(Chunk, " ")
Get F1, , Buf
Put F2, , Buf
BTest = FSize - LOF(F2)ProcBar.value = (100 - Int(100 * BTest / FSize)) 'advance the progress bar as the file is copiedLoop Until BTest = 0
Close F1 'closes the source file
Close F2 'closes the destination file
CopyFile = FSize
ProcBar.value = 0 'returns the progress bar to zero
Exit Function 'exit the procedureFileCopyError: 'file copy error label
MsgBox "更新错误,请再试...." 'display message box with error
Close F1 'closes the source file
Close F2 'closes the destination file
Exit Function 'exit the procedureEnd Function
请大家指教,通过上述办法,我复制的文件大小没有问题,而且如果是文档也没问题,可是就是可执行程序,就不行了,复制完之后就不能执行了,实在搞不明白拉,请大家帮帮忙拉,另外还有别的办法么,比如API ,FILECOPY肯定不行的,我希望能返回个值好显示进度。
ByVal lpNewFileName As String, ByVal bFailIfExists As Long) As Long
Private Sub Command1_Click()CopyFile "a.exe", "c:\a.exe", 0End Sub
hwnd As Long
wFunc As Long '对文件的操作指令
pFrom As String '源文件或路径
pTo As String '目的文件或路径
fFlags As Integer '操作标志
fAnyOperationsAborted As Long
hNameMappings As Long
lpszProgressTitle As String
End TypePrivate Declare Function SHFileOperation Lib _
"shell32" _
(lpFileOp As SHFILEOPSTRUCT) As LongConst FO_COPY = &H2
Const FO_DELETE = &H3
Const FO_MOVE = &H1
Const FO_RENAME = &H4
Const FOF_ALLOWUNDO = &H40
Const FOF_NOCONFIRMATION = &H10Private Sub Command1_Click()
Dim xFile As SHFILEOPSTRUCT
'复制
xFile.pFrom = "c:\bbb\*.*"
xFile.pTo = "c:\aaa"
xFile.fFlags = FOF_NOCONFIRMATION
xFile.wFunc = FO_COPY
xFile.hwnd = Me.hwnd
If SHFileOperation(xFile) Then
End If
End Sub
文件复制对话框,无法从进度条上判断当前复制的进度.那么,如何做到这一点呢?请看下面: Public Type SHFILEOPSTRUCT
hWnd As Long
wFunc As Long
pFrom As String
pTo As String
fFlags As Integer
fAnyOperationsAborted As Boolean
hNameMappings As Long
lpszProgressTitle As String
End Type Public Declare Function SHFileOperation Lib "shell32.dll" Alias
_
"SHFileOperationA" (lpFileOp As SHFILEOPSTRUCT) As Long
Public Const FO_COPY = &H2
Public Const FOF_ALLOWUNDO = &H40 Public Sub ShellCopyFile(Source As String, Dest As String)
Dim result As Long
Dim fileop As SHFILEOPSTRUCT
With fileop
.hwnd = 0
.wFunc = FO_COPY
'The files to copy separated by Nulls and terminated by 2 nulls
.pFrom = Source & vbNullChar & vbNullChar
'or to copy all files use this line
'.pFrom = "C:\*.*" & vbNullChar & vbNullChar
'The directory or filename(s) to copy into terminated in 2 nulls
.pTo = Dest & vbNullChar & vbNullChar
.fFlags = FOF_ALLOWUNDO
End With
result = SHFileOperation(fileop)
If result <> 0 Then 'Operation failed
'Msgbox the error that occurred in the API.
MsgBox Err.LastDllError, vbCritical Or vbOKOnly
Else
If fileop.fAnyOperationsAborted <> 0 Then
MsgBox "Operation Failed", vbCritical Or vbOKOnly
End If
End If
End Sub 只需调用ShellCopyFile FileA, FileACopy
Private Declare Function CopyFile Lib "kernel32" Alias "CopyFileA" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal bFailIfExists As Long) As Long