G
Guest
How can I scan a BLOB into my database? For example using
a scanner, scan a picture into my database.
thanks
a scanner, scan a picture into my database.
thanks
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R
Roger Carlson
It is generally not recommended to do this in an Access database. It will
bloat your database very quickly. The usual solution is to leave the
picture in a folder on the hard drive and store the PATH to it in the
database. Then programmatically load the picture into a form or reports.
On my website of Access database samples (www.rogersaccesslibrary.com) there
is a small sample called "Pictures.mdb", which illustrates how this is done.
--
--Roger Carlson
Access Database Samples: www.rogersaccesslibrary.com
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bloat your database very quickly. The usual solution is to leave the
picture in a folder on the hard drive and store the PATH to it in the
database. Then programmatically load the picture into a form or reports.
On my website of Access database samples (www.rogersaccesslibrary.com) there
is a small sample called "Pictures.mdb", which illustrates how this is done.
--
--Roger Carlson
Access Database Samples: www.rogersaccesslibrary.com
Want answers to your Access questions in your Email?
Free subscription:
http://peach.ease.lsoft.com/scripts/wa.exe?SUBED1=ACCESS-L
L
Larry Linson
How can I scan a BLOB into my database? For example using
a scanner, scan a picture into my database.
I've not found any advantage to scanning directly into a database. I have
implemented some imaging functionality that allowed the user to acquire an
image that had been scanned separately.
The BLOB technique does not cause as much bloat as storing an image as an
OLE Object, but storing the files externally may be preferrable.
The sample imaging databases at http://accdevel.tripod.com illustrate three
approaches to handling images in Access, and the download includes an
article discussing considerations in choosing an approach. Two of the
approaches do not use OLE Objects and, thus, avoid the database bloat, and
some other problems, associated with images in OLE Objects.
If you are printing the images in reports, to avoid memory leakage, you
should also see MVP Stephen Lebans' http://www.lebans.com/printfailures.htm.
PrintFailure.zip is an Access97 MDB containing a report that fails during
the Access formatting process prior to being spooled to the Printer Driver.
This MDB also contains code showing how to convert the contents of the Image
control to a Bitmap file prior to printing. This helps alleviate the "Out of
Memory" error that can popup when printing image intensive reports.
While at Stephen's site, you should also look at his examples and (free)
controls/classes for displaying images.
Larry Linson
Microsoft Access MVP