Bitmap.FromStream hangs

[buraktamturk]

Hello,

I want to create Bitmap from MemoryStream. But whatever i use from FileStream or MemoryStream, I got hang after calling Bitmap.FromStream.

MemoryStream ms = new MemoryStream();
new FileStream("/Users/buraktamturk/test.jpg", FileMode.Open).CopyTo(ms);
ms.Seek(0, SeekOrigin.Begin);

Bitmap b = (Bitmap)Bitmap.FromStream(ms);

OS: OS X Runtime: mono or dnvm (whichever is right)

I think I have a problem with integration, cause when i try it on Windows. I get following exception instead of hang.

BitmapImage has not been initialized.  Call the BeginInit method, set the appropriate properties, and then call the EndInit method.

Thanks, Burak

Edit: Not only MemoryStream, but also FileStream.

[anders9ustafsson]

Thanks for reporting, Burak! Which platform are you targeting, iOS? I don't recognize the error message right away, but I will look deeper into the issue within the next few days. Best regards, Anders @ Cureos

[buraktamturk]

Thank you, actually I am targetting vnext web project Windows for production, OS X for development. (web application) The runtime is dnvm runtime but i belive it uses mono on OS X because it needs mono to run. in os x the function hangs, in windows i get the exception message "BitmapImage has not been initialized."

You do not have to look at this issue because I managed to import System.Drawing to that project at least on Windows, so my code is working at least on Windows and i can use virtual machine while i am developing. Thanks again!

[anders9ustafsson]

If you are working with ASP.NET, it is probably better to use the original AForge libraries, where you (at least on Windows) should have access to the real System.Drawing assembly. I am no Mono expert, but isn't there System.Drawing for Mono, too? If you use the original libraries (see here), I think you should be able to work it out even on Mac OS X.