Access to the path 'c:\windows\system32\inetsrv\p_1.png' is denied

GroupDocs.Viewer Product Family
1

Hi,

Is there a way to change the “temp” folder? Or handle the conversion in memory, rather than saving to disk?

I’m using ASP.NET WebForms, VB.NET. I just want to read an Illustrator file (.AI) and display it in the browser.

Thanks,
Mike

This is my code-behind:

Private Sub IllustratorTest2_Load(sender As Object, e As EventArgs) Handles Me.Load

    Dim strTestFile As String = "D:\Data\AI_TEST\test.ai"

    Using viewer As New Viewer(strTestFile)

        Dim viewOptions As New PngViewOptions()

        viewer.View(viewOptions)

    End Using

End Sub

Do I need to put a control on the aspx page, or will it just render into the page automatically?

I tried looking at your WebForms sample, but I couldn’t figure out how it worked. I was hoping for a simple example.

Thanks,
Mike

2

@msatkevich

Sure, you can decide how to handle the conversion by implementing IPageStreamFactory as it shown in the code snippet:

Imports System.IO
Imports GroupDocs.Viewer
Imports GroupDocs.Viewer.Interfaces
Imports GroupDocs.Viewer.Options

Module Module1

    Sub Main()

        Dim strTestFile = "D:\Data\AI_TEST\test.ai"

        Dim pageStream = New MemoryStream()
        Dim streamFactory = New MemoryPageStreamFactory(pageStream)

        Using viewer As New Viewer(strTestFile)

            Dim viewOptions As New PngViewOptions(streamFactory)

            viewer.View(viewOptions)

        End Using

        'Return pageStream
            
    End Sub

End Module

Friend Class MemoryPageStreamFactory
    Implements IPageStreamFactory

    Private ReadOnly _memoryStream As MemoryStream

    Public Sub New(memoryStream As MemoryStream)
        _memoryStream = memoryStream
    End Sub

    Public Function CreatePageStream(pageNumber As Integer) As Stream Implements IPageStreamFactory.CreatePageStream
        Return _memoryStream
    End Function

    Public Sub ReleasePageStream(pageNumber As Integer, pageStream As Stream) Implements IPageStreamFactory.ReleasePageStream
        'Do not dispose page stream here
    End Sub
End Class

Please let us know if it works for you.

3

Hi,

When I try the code below, the page takes a very long time to load.

And after the page loads, it’s just a small white square on a black background.

Can you tell me if what I have is incorrect?

Thanks,
Mike

Imports System.IO
Imports GroupDocs
Imports GroupDocs.Viewer
Imports GroupDocs.Viewer.Interfaces
Imports GroupDocs.Viewer.Options

Partial Class Tech_IllustratorTest2
    Inherits System.Web.UI.Page

Private Sub Tech_IllustratorTest2_Load(sender As Object, e As EventArgs) Handles Me.Load

    Dim strTestFile As String = "D:\Data\AI_TEST\my_file.ai"

    Dim pageStream = New MemoryStream()

    Dim streamFactory = New MemoryPageStreamFactory(pageStream)

    Using viewer As New Viewer(strTestFile)

        Dim viewOptions As New PngViewOptions(streamFactory)

        viewOptions.Width = 400
        ' use width Or height To keep proportions
        'viewOptions.Height = 300

        viewer.View(viewOptions)

        Response.Clear()
        Context.Response.ContentType = "image/png"
        pageStream.CopyTo(Context.Response.OutputStream)

    End Using

End Sub

End Class



Friend Class MemoryPageStreamFactory

    Implements IPageStreamFactory

Private ReadOnly _memoryStream As MemoryStream

Public Sub New(memoryStream As MemoryStream)

    _memoryStream = memoryStream

End Sub

Public Function CreatePageStream(pageNumber As Integer) As Stream Implements 
IPageStreamFactory.CreatePageStream

    Return _memoryStream

End Function

Public Sub ReleasePageStream(pageNumber As Integer, pageStream As Stream) Implements 
IPageStreamFactory.ReleasePageStream

    'Do not dispose page stream here

End Sub

End Class
4

@msatkevich

Please attach the file you’re trying to render we’ll try to reproduce it at our side.

5

Hi,

Can I attach the file to this e-mail address? The file is somewhat confidential – I’d rather not post to the forum.

Thanks,

Mike

image001.jpg (169 Bytes)

6

@msatkevich

I’m sorry for the delayed response. I’ve created the private topic AI rendering is slow and output is a white square for this issue. Let’s continue there.