Saving a JPG from the web to local disk

  • Thread starter Thread starter Jerry Spence1
  • Start date Start date
J

Jerry Spence1

I have an http command such as http://<ip-Address>/getimage to get a jpg
snapshot image from an IP camera. When I put this into a Web browser it
shows the image OK.

What I would like to go is to build some VB.Net to be able to save this
image to disk. I thought of using a Picturebox as this can show web based
images but saving them to disk becomes rather complicated. Is there any
other way?

-Jerry
 
Jerry Spence1 said:
I have an http command such as http://<ip-Address>/getimage to get a jpg
snapshot image from an IP camera. When I put this into a Web browser it
shows the image OK.

What I would like to go is to build some VB.Net to be able to save this
image to disk. I thought of using a Picturebox as this can show web based
images but saving them to disk becomes rather complicated. Is there any
other way?
Click to expand...

Maybe something like

Dim Client As System.Net.WebClient = New System.Net.WebClient()
Client.DownloadFile("http://www.example.com/image.jpg", "c:/image.jpg")


should do. Didn't test it though.
 
Jerry Spence1 said:
I have an http command such as http://<ip-Address>/getimage to get a jpg
snapshot image from an IP camera. When I put this into a Web browser it
shows the image OK.
Click to expand...

'WebClient.DownloadFile'.
 
I have an http command such as http://<ip-Address>/getimage to get a jpg
snapshot image from an IP camera. When I put this into a Web browser it
shows the image OK.

What I would like to go is to build some VB.Net to be able to save this
image to disk. I thought of using a Picturebox as this can show web based
images but saving them to disk becomes rather complicated. Is there any
other way?

-Jerry
Click to expand...
Yet, another option:

My.Computer.Network.DownloadFile("http://SomeDomain/Some.jpg", _
"c:/SomeFolder/Some.jpg")

There are 9 other overrides to this to this to handle such things as
credentials, overwrite etc.

Gene
 
gene kelley said:
Yet, another option:

My.Computer.Network.DownloadFile("http://SomeDomain/Some.jpg", _
"c:/SomeFolder/Some.jpg")

There are 9 other overrides to this to this to handle such things as
credentials, overwrite etc.

Gene
Click to expand...

I tried this but 'My' wasn't defined. Where does it come from?

-Jerry
 
I tried this but 'My' wasn't defined. Where does it come from?

-Jerry
Click to expand...

My Namespace >> introduced in VS2005. You must be using an earlier
version.
I'm not familiar with the older versions as to what to use in that
case.

Gene
 
My Namespace >> introduced in VS2005. You must be using an earlier
version.
I'm not familiar with the older versions as to what to use in that
case.
Click to expand...
Have a look at the message from Herfried,

Cor
 
My Namespace >> introduced in VS2005. You must be using an earlier
version.
I'm not familiar with the older versions as to what to use in that
case.

Gene
Click to expand...

Yes I am. Thanks. Good incentive to upgrade!

-Jerry
 
Maybe something like
Thanks for this. Worked a treat. Very useful!

-Jerry
Click to expand...
Actually I'm not quite out of problems. I'm getting an error:

"The server committed an HTTP protocol violation"

My exe file is Housekeeper 5.0.exe and I understand I need to produce a file
called Housekeeper 5.0.exe.config containing the following:

<?xml version="1.0" encoding="utf-8"
<configuration>
<system.net>
<settings>
<httpWebRequest useUnsafeHeaderParsing="true" />
</settings>
</system.net>
</configuration>

I have placed this in the project folder (is that right?) but I still get
the error message. Do I need to load it or anything, or just leave it in the
folder? Have I done everything right?

-Jerry
 
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