'Files
'This program needs a Dialog box, named CDBox1
' (To add the Common Dialog Box to your tools menu, go to Project->Components (or press CTRL-T)
' and select Microsoft Common Dialog control)
Private Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
Private Type SHFILEOPSTRUCT
hWnd As Long
wFunc As Long
pFrom As String
pTo As String
fFlags As Integer
fAborted As Boolean
hNameMaps As Long
sProgress As String
End Type
Private Type SYSTEMTIME
wYear As Integer
wMonth As Integer
wDayOfWeek As Integer
wDay As Integer
wHour As Integer
wMinute As Integer
wSecond As Integer
wMilliseconds As Integer
End Type
Private Const GENERIC_WRITE = &H40000000
Private Const OPEN_EXISTING = 3
Private Const FILE_SHARE_READ = &H1
Private Const FILE_SHARE_WRITE = &H2
Private Const FO_DELETE = &H3
Private Declare Function CopyFile Lib "kernel32" Alias "CopyFileA" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal bFailIfExists As Long) As Long
Private Declare Function CreateDirectory Lib "kernel32" Alias "CreateDirectoryA" (ByVal lpPathName As String, lpSecurityAttributes As Long) As Long
Private Declare Function DeleteFile Lib "kernel32" Alias "DeleteFileA" (ByVal lpFileName As String) As Long
Private Declare Function GetFileSize Lib "kernel32" (ByVal hFile As Long, lpFileSizeHigh As Long) As Long
Private Declare Function GetFileTime Lib "kernel32" (ByVal hFile As Long, lpCreationTime As FILETIME, lpLastAccessTime As FILETIME, lpLastWriteTime As FILETIME) As Long
Private Declare Function MoveFile Lib "kernel32" Alias "MoveFileA" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String) As Long
Private Declare Function CreateFile Lib "kernel32" Alias "CreateFileA" (ByVal lpFileName As String, ByVal dwDesiredAccess As Long, ByVal dwShareMode As Long, lpSecurityAttributes As Long, ByVal dwCreationDisposition As Long, ByVal dwFlagsAndAttributes As Long, ByVal hTemplateFile As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function SHFileOperation Lib "shell32.dll" Alias "SHFileOperationA" (lpFileOp As SHFILEOPSTRUCT) As Long
Private Declare Function FileTimeToSystemTime Lib "kernel32" (lpFileTime As FILETIME, lpSystemTime As SYSTEMTIME) As Long
Private Declare Function FileTimeToLocalFileTime Lib "kernel32" (lpFileTime As FILETIME, lpLocalFileTime As FILETIME) As Long
Private Sub Form_Load()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Dim lngHandle As Long, SHDirOp As SHFILEOPSTRUCT, lngLong As Long
Dim Ft1 As FILETIME, Ft2 As FILETIME, SysTime As SYSTEMTIME
'Set the dialog's title
CDBox.DialogTitle = "Choose a file ..."
'Raise an error when the user pressed cancel
CDBox.CancelError = True
'Show the 'Open File'-dialog
CDBox.ShowOpen
'Create a new directory
CreateDirectory "C:\KPD-Team", ByVal &H0
'Copy the selected file to our new directory
CopyFile CDBox.filename, "C:\KPD-Team\" + CDBox.FileTitle, 0
'Rename the file
MoveFile "C:\KPD-Team\" + CDBox.FileTitle, "C:\KPD-Team\test.kpd"
'Open the file
lngHandle = CreateFile("C:\KPD-Team\test.kpd", GENERIC_WRITE, FILE_SHARE_READ Or FILE_SHARE_WRITE, ByVal 0&, OPEN_EXISTING, 0, 0)
'Get the file's size
MsgBox "The size of the selected file is" + Str$(GetFileSize(lngHandle, lngLong)) + " bytes."
'Get the fil's time
GetFileTime lngHandle, Ft1, Ft1, Ft2
'Convert the file time to the local file time
FileTimeToLocalFileTime Ft2, Ft1
'Convert the file time to system file time
FileTimeToSystemTime Ft1, SysTime
MsgBox "The selected file was created on" + Str$(SysTime.wMonth) + "/" + LTrim(Str$(SysTime.wDay)) + "/" + LTrim(Str$(SysTime.wYear))
'Close the file
CloseHandle lngHandle
'Delete the file
DeleteFile "C:\KPD-Team\test.kpd"
With SHDirOp
.wFunc = FO_DELETE
.pFrom = "C:\KPD-Team"
End With
'Delete the directory
SHFileOperation SHDirOp
End
End Sub
'This program needs a Dialog box, named CDBox1
' (To add the Common Dialog Box to your tools menu, go to Project->Components (or press CTRL-T)
' and select Microsoft Common Dialog control)
Private Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
Private Type SHFILEOPSTRUCT
hWnd As Long
wFunc As Long
pFrom As String
pTo As String
fFlags As Integer
fAborted As Boolean
hNameMaps As Long
sProgress As String
End Type
Private Type SYSTEMTIME
wYear As Integer
wMonth As Integer
wDayOfWeek As Integer
wDay As Integer
wHour As Integer
wMinute As Integer
wSecond As Integer
wMilliseconds As Integer
End Type
Private Const GENERIC_WRITE = &H40000000
Private Const OPEN_EXISTING = 3
Private Const FILE_SHARE_READ = &H1
Private Const FILE_SHARE_WRITE = &H2
Private Const FO_DELETE = &H3
Private Declare Function CopyFile Lib "kernel32" Alias "CopyFileA" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal bFailIfExists As Long) As Long
Private Declare Function CreateDirectory Lib "kernel32" Alias "CreateDirectoryA" (ByVal lpPathName As String, lpSecurityAttributes As Long) As Long
Private Declare Function DeleteFile Lib "kernel32" Alias "DeleteFileA" (ByVal lpFileName As String) As Long
Private Declare Function GetFileSize Lib "kernel32" (ByVal hFile As Long, lpFileSizeHigh As Long) As Long
Private Declare Function GetFileTime Lib "kernel32" (ByVal hFile As Long, lpCreationTime As FILETIME, lpLastAccessTime As FILETIME, lpLastWriteTime As FILETIME) As Long
Private Declare Function MoveFile Lib "kernel32" Alias "MoveFileA" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String) As Long
Private Declare Function CreateFile Lib "kernel32" Alias "CreateFileA" (ByVal lpFileName As String, ByVal dwDesiredAccess As Long, ByVal dwShareMode As Long, lpSecurityAttributes As Long, ByVal dwCreationDisposition As Long, ByVal dwFlagsAndAttributes As Long, ByVal hTemplateFile As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function SHFileOperation Lib "shell32.dll" Alias "SHFileOperationA" (lpFileOp As SHFILEOPSTRUCT) As Long
Private Declare Function FileTimeToSystemTime Lib "kernel32" (lpFileTime As FILETIME, lpSystemTime As SYSTEMTIME) As Long
Private Declare Function FileTimeToLocalFileTime Lib "kernel32" (lpFileTime As FILETIME, lpLocalFileTime As FILETIME) As Long
Private Sub Form_Load()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Dim lngHandle As Long, SHDirOp As SHFILEOPSTRUCT, lngLong As Long
Dim Ft1 As FILETIME, Ft2 As FILETIME, SysTime As SYSTEMTIME
'Set the dialog's title
CDBox.DialogTitle = "Choose a file ..."
'Raise an error when the user pressed cancel
CDBox.CancelError = True
'Show the 'Open File'-dialog
CDBox.ShowOpen
'Create a new directory
CreateDirectory "C:\KPD-Team", ByVal &H0
'Copy the selected file to our new directory
CopyFile CDBox.filename, "C:\KPD-Team\" + CDBox.FileTitle, 0
'Rename the file
MoveFile "C:\KPD-Team\" + CDBox.FileTitle, "C:\KPD-Team\test.kpd"
'Open the file
lngHandle = CreateFile("C:\KPD-Team\test.kpd", GENERIC_WRITE, FILE_SHARE_READ Or FILE_SHARE_WRITE, ByVal 0&, OPEN_EXISTING, 0, 0)
'Get the file's size
MsgBox "The size of the selected file is" + Str$(GetFileSize(lngHandle, lngLong)) + " bytes."
'Get the fil's time
GetFileTime lngHandle, Ft1, Ft1, Ft2
'Convert the file time to the local file time
FileTimeToLocalFileTime Ft2, Ft1
'Convert the file time to system file time
FileTimeToSystemTime Ft1, SysTime
MsgBox "The selected file was created on" + Str$(SysTime.wMonth) + "/" + LTrim(Str$(SysTime.wDay)) + "/" + LTrim(Str$(SysTime.wYear))
'Close the file
CloseHandle lngHandle
'Delete the file
DeleteFile "C:\KPD-Team\test.kpd"
With SHDirOp
.wFunc = FO_DELETE
.pFrom = "C:\KPD-Team"
End With
'Delete the directory
SHFileOperation SHDirOp
End
End Sub
Public Declare Function GetFileAttributes Lib "kernel32" Alias "GetFileAttributesA" (ByVal lpFileName As String) As Long
Public Declare Function GetFileSize Lib "kernel32" Alias "GetFileSize" (ByVal hFile As Long, lpFileSizeHigh As Long) As Long
Public Declare Function GetFileTime Lib "kernel32" Alias "GetFileTime" (ByVal hFile As Long, lpCreationTime As FILETIME, lpLastAccessTime As FILETIME, lpLastWriteTime As FILETIME) As Long这些API函数
LOF 函数
返回一个 Long,表示用 Open 语句打开的文件的大小,该大小以字节为单位。语法LOF(filenumber)必要的 filenumber 参数是一个 Integer,包含一个有效的文件号。注意 对于尚未打开的文件,使用 FileLen 函数将得到其长度。
LOF 函数示例
本示例使用 LOF 函数来得知已打开文件的大小。本示例假设 TESTFILE 文件内含文本数据。Dim FileLength
Open "TESTFILE" For Input As #1 ' 打开文件。
FileLength = LOF(1) ' 取得文件长度。
Close #1 ' 关闭文件。
'GetFileSizeEx
Const GENERIC_READ = &H80000000
Const FILE_SHARE_READ = &H1
Const OPEN_EXISTING = 3
Const FILE_TYPE_CHAR = &H2
Const FILE_TYPE_DISK = &H1
Const FILE_TYPE_PIPE = &H3
Const FILE_TYPE_UNKNOWN = &H0
Private Declare Function GetFileType Lib "kernel32" (ByVal hFile As Long) As Long
Private Declare Function CreateFile Lib "kernel32" Alias "CreateFileA" (ByVal lpFileName As String, ByVal dwDesiredAccess As Long, ByVal dwShareMode As Long, lpSecurityAttributes As Any, ByVal dwCreationDisposition As Long, ByVal dwFlagsAndAttributes As Long, ByVal hTemplateFile As Long) As Long
Private Declare Function GetFileSizeEx Lib "kernel32" (ByVal hFile As Long, lpFileSize As Currency) As Boolean
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Sub Form_Paint()
'KPD-Team 2000
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Dim hFile As Long, nSize As Currency, sSave As String
'open the file
hFile = CreateFile("c:\autoexec.bat", GENERIC_READ, FILE_SHARE_READ, ByVal 0&, OPEN_EXISTING, ByVal 0&, ByVal 0&)
'get the filesize
GetFileSizeEx hFile, nSize
'retrieve the file type
Select Case GetFileType(hFile)
Case FILE_TYPE_UNKNOWN
sSave = "The type of the specified file is unknown"
Case FILE_TYPE_DISK
sSave = "The specified file is a disk file"
Case FILE_TYPE_CHAR
sSave = "The specified file is a character file, typically an LPT device or a console"
Case FILE_TYPE_PIPE
sSave = "The specified file is either a named or anonymous pipe"
End Select
'close the file
CloseHandle hFile
MsgBox "File Type: " + sSave + vbCrLf + "Size:" + Str$(nSize * 10000) + " bytes"
End Sub