Large Images and Memory Usage

[n_none]

It seems many people are having problems with the 32meg process limit
the compact framework has, especially when dealing with images. Modern
digital cameras are in the 6 to 8 megapixel range. Using Jpeg
compression keeps the images under 2 megs, but to use the images in the
compact framework I have to convert them to Bitmaps to display (or even
try to generate a thumbnail). This means I can't really use large
images. Does anyone have a solution to this? Is there a library out
there that can generate thumbnails without hitting this memory limit?
The Hp handhelds I've got have a image viewer that doesn't seem to have
this problem. It's actually pretty snappy, too. I'm assuming it's not
written with using the compact framework, probably eVC. I'd rather not
have to go and figure out the Jpeg compression scheme myself and was
wondering if anyone knew of a library that would help out. Unsafe
code, P/Invoke, are all ok. I'd like to stay working within the
framework as much as possible, but would jump to eVC if needed, I just
can't find as much documentation on eVC (and no books seem to be
available)

Thanks.

 

[Mark Arteaga]

The 32MB limit is not a Compact Framework issue but is inherent to Windows
CE. Check out this article for more details on the memory architecture of
WinCE
http://msdn.microsoft.com/library/d...ernWindowsCEMemoryArchitecture.asp?frame=true.

As for the image problem, internally CF will convert the jpeg to a bitmap.
Once your done with the image try calling Bitmap.Dispose() or
Image.Dispose(). That may help.

 

[n_none]

The problem is that some of the images in Bitmap format are over 32MB.
I want a thumbnail generator that can handle images this large.