multipage tiff

[Al]

Is it possible, using only VB.NET code, to extract a single page from a
multipage tiff file?

 

[Al Reid]

Is it possible, using only VB.NET code, to extract a single page from a
multipage tiff file?

Yes, it is possible. For example, you can load a multipage tiff image into an image object and select page using the
SelectActiveFrame method in the image object.

Dim img As Image
Dim bmp As Image

img = Image.FromFile(OpenFileDialog1.FileName)
intCurrPage = 2 'Select page 2
intNumPages = img.GetFrameCount(Imaging.FrameDimension.Page)
img.SelectActiveFrame(System.Drawing.Imaging.FrameDimension.Page, intCurrPage - 1)
bmp = New Bitmap(img, PictureBox1.Width, PictureBox1.Height)

bmp now holds the selected page.

 

[Al Knowles]

Looks promising, but I am uncertain as to the proper values of
PictureBox1.Width and PictureBox1.Height. Does it matter?

I should have mentioned, this code will be part of a web service that
will return a file(page) as a bytearray to the calling client
application.

Thanks for your kind response.


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[Al Reid]

Al,

Download and install the ASP.Net Resource Kit. It has examples similar to what you want to do.

http://msdn.microsoft.com/asp.net/asprk/

The ImageService example is in c#, but it is easily converted.

I hope this helps.