Kind of Listbox, like the FileWindow in the Explorer

[micki_foerster]

i am searching for a control in a dialog. it should have
3 columns and above the columns headers. This looks like
the File-Window in the Windows-Explorer. i tried today the
standard listbox with multicolumn, but this is not i want.

but the control is one of the standard controls i think but i don't know which link i must set in the project menue.

i hope u can help me.

micki

[HeSaidJoe]

'code and working example of how to use emplorer's copy
'dialog box



Public Declare Function SHFileOperation Lib _
"shell32.dll" Alias "SHFileOperationA" _
(lpFileOp As Any) As LongPublic Declare Sub SHFreeNameMappings Lib _
"shell32.dll" (ByVal hNameMappings As Long)

Public Declare Sub CopyMemory Lib "KERNEL32" _
Alias "RtlMoveMemory" (hpvDest As Any, hpvSource _
As Any, ByVal cbCopy As Long)Public Type SHFILEOPSTRUCT
hwnd As Long
wFunc As FO_Functions
pFrom As String
pTo As String
fFlags As FOF_Flags
fAnyOperationsAborted As Long
hNameMappings As Long
lpszProgressTitle As String 'only used if FOF_SIMPLEPROGRESS
End Type

Public Enum FO_Functions
FO_MOVE = &H1
FO_COPY = &H2
FO_DELETE = &H3
FO_RENAME = &H4
End Enum

Public Enum FOF_Flags
FOF_MULTIDESTFILES = &H1
FOF_CONFIRMMOUSE = &H2
FOF_SILENT = &H4
FOF_RENAMEONCOLLISION = &H8
FOF_NOCONFIRMATION = &H10
FOF_WANTMAPPINGHANDLE = &H20
FOF_ALLOWUNDO = &H40
FOF_FILESONLY = &H80
FOF_SIMPLEPROGRESS = &H100
FOF_NOCONFIRMMKDIR = &H200
FOF_NOERRORUI = &H400
FOF_NOCOPYSECURITYATTRIBS = &H800
FOF_NORECURSION = &H1000
FOF_NO_CONNECTED_ELEMENTS = &H2000
FOF_WANTNUKEWARNING = &H4000
End Enum

Public Type SHNAMEMAPPING
pszOldPath As String
pszNewPath As String
cchOldPath As Long
cchNewPath As Long
End Type

'''''''''''''''''''''''''''''''''''''
Public Function SHFileOP(ByRef lpFileOp As SHFileOpStruct) As Long
' This uses a method suggested at MSKB to
' ensure that all parameters are passed correctly
' Call this wrapper rather than the API function directly

Dim result As Long
Dim lenFileop As Long
Dim foBuf() As Byte

lenFileop = LenB(lpFileOp)
ReDim foBuf(1 To lenFileop) ' the size of the structure.

' Now we need to copy the structure into a byte array
Call CopyMemory(foBuf(1), lpFileOp, lenFileop)

' Next we move the last 12 bytes by 2 to byte align the data
Call CopyMemory(foBuf(19), foBuf(21), 12)
result = SHFileOperation(foBuf(1))

SHFileOP = result
End Function
''''''''''''''''''''''''''''''''''''''''''''''''''
Practical Example

For example to back up your documents and VB programs to a backup folder, you could use this code:

Dim lret As Long
Dim fileop As SHFILEOPSTRUCT

With fileop
.hwnd = 0
.wFunc = FO_COPY
.pFrom = "C:\Program Files\DevStudio\VB\My Programs" & _
vbNullChar & "C:\My Documents" & vbNullChar & vbNullChar
.pTo = "c:\Backup of Documents" & vbNullChar & vbNullChar
.lpszProgressTitle = "Please wait, backing up..."
.fFlags = FOF_SIMPLEPROGRESS Or FOF_RENAMEONCOLLISION
End With

lret = SHFileOp(fileop)

If result <> 0 Then ' Operation failed
MsgBox Err.LastDllError 'Show the error returned from the API.
Else
If fileop.fAnyOperationsAborted <> 0 Then
MsgBox "Operation Failed"
End If
End If
To send this directory to the recycle bin when it is too old, you could use this code:

Dim lret As Long
Dim fileop As SHFILEOPSTRUCT

With fileop
.hwnd = 0
.wFunc = FO_DELETE
.pFrom = "c:\Backup of Documents" & vbNullChar & vbNullChar
.lpszProgressTitle = "Please wait, backing up..."
.fFlags = FOF_SIMPLEPROGRESS Or FOF_ALLOWUNDO
End With

lret = SHFileOp(fileop)

If result <> 0 Then ' Operation failed
MsgBox Err.LastDllError 'Show the error returned from the API.
Else
If fileop.fAnyOperationsAborted <> 0 Then
MsgBox "Operation Failed"
End If
End If

[micki_foerster]

i try to set a link to shell32.dll and a error occurs
'activex object cannot be registered'

how i get this explorer control in the dialog-build window?

micki

[gfk]

Erm... instead of all that unnecessary arsing about, just create a "ListView" on your form. It can be found in the Microsoft Common Controls 6 (components).

Add it to your form, right click it, select 'properties' and change it's type to 'Report View'. Then you can add columns etc.

[micki_foerster]

hey thanx, that was the thing i searching for.

[kb244]

Just wanted to mention, an API will directly link to the functions of those dlls, like kernel32 and user32 , etc, you do not try to include the DLLs as if they were a ActiveX, which they are not, you use the API calls like he did, (no linking required just paste the code) you can do API with any non-ActiveX dlls, assuming you know the declarations.

[kb244]

Also Gfk, sometimes the API routine can be much more efficient, smaller and faster than that ActiveX control, sometimes I dont see the point in referencing an ActiveX that has 6 controls , when I only need one, so sometimes the ActiveX are bulkier, in this case of Microsoft Common Controls I wouldnt worry about compatiblity, but with many other activeX controls you would have to distribute them with the application, if I need an ActiveX, I'll make my own with only the features I need.