[Gtk-sharp-list] Accessing System.Drawing.Bitmap from GTK# Thread throws Object Currently in use elsewhere exception

netgear cool_rainbow at rocketmail.com
Thu Jan 8 06:49:50 UTC 2015

Im trying to manipulate an image using system.drawing in GTk#.I want the UI
to update the image on screen as soon as the user updates a textbox.To
implement this i tried using the background worker from winforms,it worked
but when the textbox is updated at a higher speed the application becomes
stuck with no error.

So i took a look at multithreading in GTK here
http://www.mono-project.com/docs/gui/gtksharp/responsive-applications/ and
created a thread .

void textboxchanged()
    Thread thr = new Thread (new ThreadStart (ThreadRoutine));
    thr.Start ();


  static void ThreadRoutine ()
        LargeComputation ();


  static void LargeComputation ()
    image=new Bitmap(backupimage);
   //Long image processing 

It works poorly than the background worker throws up object currently in use
elsewhere error here image=new Bitmap(backupimage); when the speed of entry
in textbox is even a little fast.What im i doing wrong ?

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