Re: Resizing Images on the fly from another server

geedubb — Sun, 28 May 2006 16:18:40 GMT

Just found this:

http://forums.asp.net/thread/1280870.aspx

Look at the second answer - he gives you some c# code for using the webrequest method. I'm sure it's easily converted to VB

Re: Resizing Images on the fly from another server

geedubb — Sun, 28 May 2006 16:14:38 GMT

I'm not sure that you can pass a URI into the constructor for Image.FromFile(). You might want to try using a WebRequest object, then creating a streamreader from that and passing it into the Image constructor. Also have you tried removing the try...catch blocks from your code? You may be swallowing a useful exception here.

HTH

Resizing Images on the fly from another server

gp_330 — Mon, 22 May 2006 16:48:36 GMT

Hi guys, I have a resizing page that I use to resize all of the images on my local server. However now, I want to be able to read files from another website using the full URL, and resize them on the fly. However the code that I have only works with local files. I was wondering if anyone could point me in the right direction with this issue. I am sure that I have use the Stream Reader in some way, I just can't figure it out. Any help would be really appreciated!

Thanks

<code>
Sub Page_load(ByVal sender As Object, ByVal e As EventArgs)
            Try
                Dim objImage, objThumbnail As System.Drawing.Image
                Dim strServerPath, strFilename As String
                Dim shtWidth, shtHeight As Short
                strServerPath = Server.MapPath("")
                strFilename = httpcontext.current.Request.QueryString("filename")

                Try
                    objImage = objImage.FromFile(Server.MapPath(strFileName))
                Catch
                    objImage = objImage.FromFile(StrServerPath &"\"&"images\noimage.jpg")
                End Try

                If Request.QueryString("width") = Nothing Then
                    shtWidth = objImage.Width
                ElseIf Request.QueryString("width") < 1 Then
                    shtWidth = 100
                Else
                    shtWidth = Request.QueryString("width")
                End If

                shtHeight = objImage.Height / (objImage.Width / shtWidth)
                objThumbnail = objImage.GetThumbnailImage(shtWidth, shtHeight, Nothing, System.IntPtr.Zero)

                Response.ContentType = "image/jpeg"
                objThumbnail.Save(Response.OutputStream, Imaging.ImageFormat.Jpeg)
                objImage.Dispose()
                objThumbnail.Dispose()

            Catch ex as exception

                response.write(ex.tostring &"<br/>")

            End try
            end sub
</code>

System.Drawing/GDI+

Re: Resizing Images on the fly from another server

Re: Resizing Images on the fly from another server

Resizing Images on the fly from another server