Load a Thumbnail Viewer with a multi-page TIFF from Memory

[megamax]

Hello,

I need some help with this..

Load a Thumbnail Viewer with a multi-page TIFF from Memory (not from a file) AND being able to select a thumbnail, and have a GDViewer display the selected thumbnail (again all in memory).

Thanks!

[Loïc]

Hi,

Here the basis:

Code: Select all

    Private m_ImageID As Integer
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim oGdPictureImaging As New GdPictureImaging
        Dim stream As New IO.FileStream("C:\multipage.TIF", IO.FileMode.Open)
        m_ImageID = oGdPictureImaging.CreateGdPictureImageFromStream(stream)
        GdViewer1.DisplayFromGdPictureImage(m_ImageID)
        ThumbnailEx1.LoadFromGdViewer(GdViewer1)
    End Sub

Let me know if you need further information.

[megamax]

I notice 2 things here...

1.- The code sample has a line that references a file in the hard drive... ( Dim stream As New IO.FileStream("C:\multipage.TIF", IO.FileMode.Open)). Can I just create a stream from a multipage tiff document and pass it to CreateGdPictureFromStream? I will not have a file to reference..

2.- Does this line passes the page from the thumbnail control to the viewer or vice versa? I am a bit confused with the method's name "LoadFromGdViewer" and what I am trying to accomplish.

ThumbnailEx1.LoadFromGdViewer(GdViewer1)

[Loïc]

Hi,

1.- The code sample has a line that references a file in the hard drive... ( Dim stream As New IO.FileStream("C:\multipage.TIF", IO.FileMode.Open)). Can I just create a stream from a multipage tiff document and pass it to CreateGdPictureFromStream? I will not have a file to reference..

Yes.

2.- Does this line passes the page from the thumbnail control to the viewer or vice versa? I am a bit confused with the method's name "LoadFromGdViewer" and what I am trying to accomplish.

ThumbnailEx1.LoadFromGdViewer(GdViewer1)

In this line the Thumbnail control displays item for the document currently displayed by the GdViewer object.

Kind regards,

Loïc