Outlook 2013 Addin: Change Ribbon Button Image on click of button using c#

Question

I have created Ribbon button for Outlook 2013 using c#.

And i have also set image for the ribbon.

Now on click of Ribbon button i want to change Ribbon Image.

Is it possible to achieve this using c#.?

Answer 1

Not sure how exactly you want it to work, but this could do the trick.

bool callback {get;set}

public Bitmap GetImage(IRibbonControl control)
    {
        switch (control.Id)
        {

            case "FooButtonId":
            {
                if(callback== true){
                    callback = false;
                    return new Bitmap(Properties.Resources.someimage1);
                }else 
                    callback =true;
                    return new Bitmap(Properties.Resources.someimage2);
                }
            }
        }
    }