On 12/14/07, Sebastien Pouliot <[EMAIL PROTECTED]> wrote: > Hello Joe, > > On Fri, 2007-12-14 at 00:48 -0500, Joe Mason wrote: > > I'm trying to make some small edits to a closed-source VB app to get > > it running on Linux (the System.Drawing.Image.FromFile "OutOfMemory" > > problem) by disassembling it with monodis and reassembling it with > > ilasm2. > > Has the problem been filled in bugzilla.ximian.com ? because AFAIK > there's none in FromFile, unless the file is bad.
As far as I could tell from Googling, the problem is with the .NET design, rather than mono itself - at least, lots of people are reporting it for .NET apps they're writing themselves, often in VB, and I assume most of these use Microsoft's .NET. The problem is that FromFile throws OutOfMemory on any error condition (permissions problems, bad image format, etc). See the following two posts - the first advises people to use OpenRead and FromStream, and the second has a huge list of people saying, "I got the same exception, but my problem was something different!" http://dotnetjunkies.com/Forums/ShowPost.aspx?PostID=3344 http://jcapka.blogspot.com/2006/06/imagefromfile-gives-out-of-memory.html I had assumed that Mono's FromFile was just following the Microsoft behaviour for compatibility, even though it would be better to have it throw a wider range of errors. I can't really file a bug until I'm sure why this particular code causes the exception, though, otherwise I don't have a very repeatable bug report. > FromStream can have some issues on Win32 (only) since the way MS deals > with loading requires the stream to be alive as long as the image. Thanks, good to know. (snip errors when pinvoking GetVolumeInformationA) > Have a look at pinvoke.net Uh, it just occured to me - will pinvoking this even WORK on Linux, even if I get it to compile? I do have Wine installed, so I have a version of this function somewhere, but getting Mono to find it sounds like a huge hassle. Surely .NET has its own equivalent that could be called natively? Thanks for the help, Joe _______________________________________________ Mono-list maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-list
