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#1 Posted : Wednesday, February 15, 2012 5:59:08 AM(UTC)

madss  
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Is there an example of how to LoadImage from a MemoryStream rather than an actual image file? I'm developing with vb.net.
 

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#2 Posted : Wednesday, February 15, 2012 6:18:23 AM(UTC)

JamesD  
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Take a look at this tutorial in the help:
http://www.leadtools.com/help/leadtools/v175/dh/to/leadtools.topics~leadtools.topics.loadinganimagefromabuffer.html
It has example code in VB and C#
 
#3 Posted : Wednesday, February 15, 2012 10:13:32 AM(UTC)

madss  
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This seemd to make sense, but I get an Invalid File Format error. I'm confused becuse codecs.Load(xx) is looking for a filename and I (and your example) is passing the image as bytes.
 
#4 Posted : Wednesday, February 15, 2012 10:17:06 AM(UTC)

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codecs.Load has overloaded methods for accepting filenames as well as memory stream objects.
 
#5 Posted : Wednesday, February 15, 2012 10:56:36 AM(UTC)

madss  
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OK, that makes sense. So is there a direction you can point me in regarding the InvalidFileFormat error. I am using the same stream to write a .jpg file and populate an imagebox w/o a problem. Thanks.
 
#6 Posted : Thursday, February 16, 2012 4:05:30 AM(UTC)

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In the DotNet libraries, Invalid File Format means one of three things: 1.) The file is actually invalid or there's a problem with the codec. If you can load the same file in one of our pre-compiled demos that ship with the toolkit, then this is not the case. 2.) You did not call RasterCodecs.StartUp() (Only required for versions previous to V17). 3.) You are not including as a reference or copying to your .exe's directory the necessary codecs dll for the file format. These dlls follow the naming convention of Leadtools.Codecs.???.dll (e.g. Leadtools.Codecs.Tif.dll). To learn which dlls are necessary for a particular file format, please read the help file article "Files to be Included With Your Application" and find the row for the file format in question.
 
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