1. Helge Tjelta
  2. Valentina Database ADK
  3. Friday, October 16 2015, 11:50 AM
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Hi, how do I get a picture from a db into my web app... ?

In desktop app, i have the VPicture available, but when doing a Webapp, VPicture is gone.... WHY

using V4RB 5.8.5
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Johnny Harris Accepted Answer
I grabbed this snippet of code from a web project I have, hopefully it will work for you.


dim mb as MemoryBlock = cur.BlobField("profile_img").ReadData()
dim p as Picture

if mb <> nil then
p = Picture.FromData( mb )
user.Profile.Image = p
end if
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 1
Ruslan Zasukhin Accepted Answer
Sergey points that class VPicture itself is marked as NOT console safe.

Helge, meanwhile try to use VCursosr.BlobField() to extract compressed JPG and send it to browser
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 2
Helge Tjelta Accepted Answer
Nice, I'm waiting :)
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 3
Ruslan Zasukhin Accepted Answer
I was wrong.

{ (REALproc) Picture_Read, REALnoImplementation, "ReadPicture as Picture", REALconsoleSafe },

{ (REALproc) Picture_WriteAs, REALnoImplementation,
"WritePictureAs( inPict as Picture, inPictType as Integer = 20, inQuality as Integer = 50 )",
REALconsoleSafe },

Methods are console-safe.
Then we need check this from another point of view.

Sergey we have own example with pictures?
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 4
Ruslan Zasukhin Accepted Answer
well, we can check once again this point.
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 5
Helge Tjelta Accepted Answer
but we have imagewell as an object for web apps, and use icons and pictures all over the place... I don't get it. ?
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 6
Ruslan Zasukhin Accepted Answer
web application is a console application.

as I remember, for console-safe apps in SDK of Xojo was disabled all picture-related methods.
so we also was need disable them

yes you can try get PNG or JPG using BLOB methods.
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 7
Helge Tjelta Accepted Answer
I ment 5.8.8, also checked the new 6.0.10. Still no VPicture

Do I have to go BLOB ?
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  1. more than a month ago
  2. Valentina Database ADK
  3. # 8
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