[Valentina] Listserver

[Marcel J.G. Trapman]

I just found that replying to an email in the list gives the wrong (eg 
old) address: 'valentina at lists.macserve.net'...



Marcel J.G. Trapman heeft op zaterdag, 18 jan 2003 om 09:10 
(Europe/Amsterdam) het volgende geschreven:

> Hi Ruslan,
>
> I picked this one up in the RB list... Maybe it is wise to comment on 
> it!?
>
> Ciao,
>
> Marcel
>
> Begin doorgestuurd bericht:
>
>> Van: Robert Garcia <rgarcia at bighead.net>
>> Datum: zat, 18 jan 2003  07:14:27 Europe/Amsterdam
>> Aan: "REALbasic Network Users Group" 
>> <realbasic-nug at lists.realsoftware.com>
>> Onderwerp: Antw.: Images + REALDatabase + Windows = :(
>> Antwoord aan: "REALbasic Network Users Group" 
>> <realbasic-nug at lists.realsoftware.com>
>>
>> I have had to build several applications that store and retrieve 
>> images to a database. I had to abandon RealDB a long time ago. I 
>> first used ValentinaDB, but after the app was shipped for a while, 
>> and many photographers were storing thousands of images, I found 
>> valentina to be unreliable. If your databases will stay small, 
>> Valentina is a great solution. If you need large reliable image 
>> database access, use PrimeBase.
>>
>> Also, you may want to take a look at the miconoJPEG plugin. Try your 
>> REALDB methods with it. MiconoJPEG has a method of saving/retrieving 
>> JPEGs as strings, which may help.
>>
>> Also, when using RB and images, try the clipboard workaround if there 
>> is a problem. RB sometimes does not treat an image correctly, and a 
>> method that is supposed to handle an image will blow up. In RB 3.0, 
>> the clipboard workaround had to be used constantly. Now I find that I 
>> only have to use it with certain methods. The workaround is 
>> accomplished by creating a clip board object and using it as a buffer 
>> to your next action.
>>
>> Add this to your dim code:
>> dim clip as clipboard
>>
>> Then in your method:
>> clip = new clipboard
>> clip.picture = rs.IdxField(1).JPEGValue
>> pointImageCanvas.backdrop = clip.picture
>> clip.close
>>
>> Using the miconoJPEG plugin, or the above workaround may fix your 
>> problem, but you will probably have to move to another database.
>>
>> Robert
>>
>>
>> On Friday, January 17, 2003, at 06:46  PM, Kimball Larsen wrote:
>>
>>> Why does this work just perfectly on a mac (os 9 or X) but not on 
>>> any version of windows?
>>>
>>>   dim rs as recordSet
>>>   dim dbFile as FolderItem
>>>   dim db as REALDatabase
>>>
>>>   db=New REALDatabase
>>>   dbFile = GetFolderItem("hinh.dat")
>>>   db.DatabaseFile=dbFile
>>>   If db.Connect() <> true then
>>>     Beep
>>>     MsgBox "The image database could not be opened.  Please contact 
>>> your vendor."
>>>   else
>>>     //got the database opened.
>>>     rs = db.sqlSelect("select image from images where name = '" + 
>>> pointName + "'")
>>>     if rs <> nil then
>>>       rs.movefirst
>>>     else
>>>       msgBox "Sorry, a database error occurred.  Please contact your 
>>> vendor."
>>>     end if
>>>     pointImageCanvas.backdrop = rs.IdxField(1).JPEGValue
>>>     'pointImageCanvas.Graphics.DrawPicture rs.idxField(1).JPEGValue, 
>>> 120, 1
>>>     rs.close
>>>     db.Close
>>>   end if
>>>   pointImageCanvas.refresh
>>>
>>>
>>> I just need to be able to pull an image out of a database, and 
>>> display it to the user.  Currently, this uses images in jpeg format, 
>>> and tries to put them on a CanvasControl as the backdrop...
>>>
>>> You'll notice that I have also tried the graphics of the Canvas.. 
>>> that does not work either.
>>>
>>> Thanks!
>>>
>>> --Kimball Larsen
>>>
>>>
>>> ---
>>> A searchable archive of this list is available at:
>>> <http://support.realsoftware.com/KBDB/search.php>
>>>
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>>>
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>>>
>>>
>>
>> -- 
>>
>> Robert Garcia
>> BigHead Technology
>> 2781 N Carlmont Pl
>> Simi Valley, CA 93065
>> Phone 805.522.8577
>> http://www.bighead.net/
>> http://www.theradmac.com/
>> rgarcia at bighead.net
>>
>>
>> ---
>> A searchable archive of this list is available at:
>> <http://support.realsoftware.com/KBDB/search.php>
>>
>> Unsubscribe:
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>>
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>>
>>
> Ciao,
>
> Marcel
>
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>
Ciao,

Marcel