I'm trying to use my existing application to open TIFF files for clients and staff in order to print or view the reports that we have scanned into our server. Unfortunately I have been unable to find a free, preferably open source library or wrapper for a library that will work in VB.NET running through Visual Studio 2005.
Is there any open source/free implementations of this that I could adopt in my application?
You can use the FreeImage library, downloadable from FreeImage.net .
To link it, add a reference to your project to the DLL contained in:
FreeImage/Wrapper/FreeImage.NET/CS/Bin
Once it is linked, import FreeImageAPI into your class.
then, declare your variables:
Dim pageCount As Integer
Dim imagePage As FreeImageAPI.FIBITMAP
Dim tiffImage As FreeImageAPI.FIMULTIBITMAP
tiffImage = FreeImageAPI.FreeImage.OpenMultiBitmapEx(ImagePath)
pageCount = FreeImage.GetPageCount(tiffImage)
imagePage = FreeImage.LockPage(tiffImage, 0)
imgMain.Image = FreeImage.GetBitmap(scaledImage)
imgMain.Show()
This will return the first page of a multi-page tiff file. To get each page afterwards,
FreeImage.UnlockPage(tiffImage, imagePage, false)
imagePage = FreeImage.LockPage(tiffImage, newPageNum)
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