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Database Jpeg images

Posted on 1998-10-18
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Last Modified: 2010-04-06
I need to know how to use jpegs in a database.
I want the jpegs to be stored in a separate directory, so I need the table to know which jpeg to open based on the other information stored within the database.
In other words When I click on the navigators next button it opens up the relevant Jpeg and so on.
Thanks in advance.
Mike Ross
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Question by:mykyl
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3 Comments
 
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Accepted Solution

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rwilson032697 earned 200 total points
ID: 1343290
Store the file name of the JPEG in the database table. When you move to a new record in the table with the navigator get the file name and load the JPEG image into an appropriate bitmap on the form.

If you want to store the JPEGs in the actual database table you can use BLOBs etc
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Author Comment

by:mykyl
ID: 1343291
How do I do this. I need to know how to actually put this into practice.
Cheers
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LVL 12

Expert Comment

by:rwilson032697
ID: 1343292
Do it like this:

1. Place a TJPEGImage component on your form.
2. When you need to load an image (record changed...) do this

  var
    AStream : TFileStream;

.
  try
   AStream := TFileStream.Create(TheJPEGFileName, fmOpenRead);
   MyJPEGImage.LoadFromStream(AStream);
 finally
  AStream.Free;
end;

Cheers,

Raymond.
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