how to upload photo in visual basic

[slapshock]

gud morning!!!!!!!!

i have a problem on how to upload photo and save it in the database....
i am not so familiar in visual basic on how to code.....
can you help me with this problem??
i want the codes that can the uploading and saving photos in visual basics....




tnx
slapshock

[Hemant Pathak]

To add a new record, the program lets the user select a graphic file. The program opens the file and reads it in blocks of binary data. For each block, the program uses AppendChunk to add the block to the database

 
Private Sub mnuRecordAdd_Click()
Dim rs As ADODB.Recordset
Dim person_name As String
Dim file_num As String
Dim file_length As String
Dim bytes() As Byte
Dim num_blocks As Long
Dim left_over As Long
Dim block_num As Long
 
    person_name = InputBox("Name")
    If Len(person_name) = 0 Then Exit Sub
 
    dlgPicture.Flags = _
        cdlOFNFileMustExist Or _
        cdlOFNHideReadOnly Or _
        cdlOFNExplorer
    dlgPicture.CancelError = True
    dlgPicture.Filter = "Graphics " & _
        "Files|*.bmp;*.ico;*.jpg;*.gif"
 
    On Error Resume Next
    dlgPicture.ShowOpen
    If Err.Number = cdlCancel Then
        Exit Sub
    ElseIf Err.Number <> 0 Then
        MsgBox "Error " & Format$(Err.Number) & _
            " selecting file." & vbCrLf & Err.Description
        Exit Sub
    End If
 
    ' Open the picture file.
    file_num = FreeFile
    Open dlgPicture.FileName For Binary Access Read As _
        #file_num
 
    file_length = LOF(file_num)
    If file_length > 0 Then
        num_blocks = file_length / BLOCK_SIZE
        left_over = file_length Mod BLOCK_SIZE
 
        Set rs = New ADODB.Recordset
        rs.CursorType = adOpenKeyset
        rs.LockType = adLockOptimistic
        rs.Open "Select Name, Picture, FileLength FROM " & _
            "People", m_DBConn
 
        rs.AddNew
        rs!Name = person_name
        rs!FileLength = file_length
 
        ReDim bytes(BLOCK_SIZE)
        For block_num = 1 To num_blocks
            Get #file_num, , bytes()
            rs!Picture.AppendChunk bytes()
        Next block_num
 
        If left_over > 0 Then
            ReDim bytes(left_over)
            Get #file_num, , bytes()
            rs!Picture.AppendChunk bytes()
        End If
 
        rs.Update
        Close #file_num
 
        lstPeople.AddItem person_name
        lstPeople.Text = person_name
    End If
End Sub
 

To retreive a picture, the program selects the appropriate database record. It uses the TemporaryFileName function to get a temporary file name and opens the file. It then uses GetChunk to read the data from the database in blocks and writes the blocks into the file. The program then uses LoadPicture to load the file, and Kill to remove it.

' Display the clicked person.
Private Sub lstPeople_Click()
Dim rs As ADODB.Recordset
Dim bytes() As Byte
Dim file_name As String
Dim file_num As Integer
Dim file_length As Long
Dim num_blocks As Long
Dim left_over As Long
Dim block_num As Long
Dim hgt As Single
 
    picPerson.Visible = False
    Screen.MousePointer = vbHourglass
    DoEvents
 
    ' Get the record.
    Set rs = m_DBConn.Execute("SELECT * FROM People WHERE " & _
        "Name='" & _
        lstPeople.Text & "'", , adCmdText)
    If rs.EOF Then Exit Sub
 
    ' Get a temporary file name.
    file_name = TemporaryFileName()
 
    ' Open the file.
    file_num = FreeFile
    Open file_name For Binary As #file_num
 
    ' Copy the data into the file.
    file_length = rs!FileLength
    num_blocks = file_length / BLOCK_SIZE
    left_over = file_length Mod BLOCK_SIZE
 
    For block_num = 1 To num_blocks
        bytes() = rs!Picture.GetChunk(BLOCK_SIZE)
        Put #file_num, , bytes()
    Next block_num
 
    If left_over > 0 Then
        bytes() = rs!Picture.GetChunk(left_over)
        Put #file_num, , bytes()
    End If
 
    Close #file_num
 
    ' Display the picture file.
    picPerson.Picture = LoadPicture(file_name)
    picPerson.Visible = True
 
    Width = picPerson.Left + picPerson.Width + Width - _
        ScaleWidth
    hgt = picPerson.Top + picPerson.Height + Height - _
        ScaleHeight
    If hgt < 1440 Then hgt = 1440
    Height = hgt
 
    Kill file_name
    Screen.MousePointer = vbDefault
End Sub
 
' Return a temporary file name.
Private Function TemporaryFileName() As String
Dim temp_path As String
Dim temp_file As String
Dim length As Long
 
    ' Get the temporary file path.
    temp_path = Space$(MAX_PATH)
    length = GetTempPath(MAX_PATH, temp_path)
    temp_path = Left$(temp_path, length)
 
    ' Get the file name.
    temp_file = Space$(MAX_PATH)
    GetTempFileName temp_path, "per", 0, temp_file
    TemporaryFileName = Left$(temp_file, InStr(temp_file, _
        Chr$(0)) - 1)
End Function

[vinci]

thanks a lot! it will really help me a lot...
salamat!!! - slapshock

[Rowelle]

help me guys how to upload photo in vb6..please i nid in my thesis if you have a sample program please send to my email here my email mail id removed thanks to all..godbless

[debasisdas]

@Rowelle
have you tried the code posted in this thread ?