by Sampath Kumar (2 Submissions)
Category: Databases/Data Access/DAO/ADO
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Tue 3rd February 2004
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Retrive the image from database display the picture box
API Declarations
Dim rs As ADODB.Recordset
Dim DataFile As Integer, Fl As Long, Chunks As Integer
Dim Fragment As Integer, Chunk() As Byte, i As Integer, FileName As String
Const ChunkSize As Integer = 16384
Const conChunkSize = 100
VBcoders
cn.Open "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=Pubs;Data Source=Test"
Dim strsql As String
Set rs = Nothing
Set rs = New Recordset
strsql = "SELECT * FROM pub_info where pub_id = '9999'"
rs.Open strsql, cn, adOpenForwardOnly, adLockReadOnly
ShowPic
End Sub
Private Sub ShowPic()
DataFile = 1
Open "pictemp" For Binary Access Write As DataFile
Fl = rs!logo.ActualSize ' Length of data in file
If Fl = 0 Then Close DataFile: Exit Sub
Chunks = Fl \ ChunkSize
Fragment = Fl Mod ChunkSize
ReDim Chunk(Fragment)
Chunk() = rs!logo.GetChunk(Fragment)
Put DataFile, , Chunk()
For i = 1 To Chunks
ReDim Buffer(ChunkSize)
Chunk() = rs!logo.GetChunk(ChunkSize)
Put DataFile, , Chunk()
Next i
Close DataFile
FileName = "pictemp"
Picture1.Picture = LoadPicture(FileName)
End Sub
