How to apply .xaml file in windows form

[_MeRKeZ_]

I need to apply theme file in windows form but I can't. When I use the code below I get error because there is no System.Windows.Application

[/FONT][/COLOR][COLOR=#000000][FONT=Arial]
[COLOR=#222222][FONT=Verdana]StreamResourceInfo sri = System.Windows.Application.GetResourceStream([/FONT][/COLOR][/FONT][/COLOR]new Uri("App.xaml", UriKind.Relative));
            var resources = (System.Windows.ResourceDictionary)Load(sri.Stream); 
            var app = new System.Windows.Application();
[COLOR=#000000][FONT=Arial][COLOR=#222222][FONT=Verdana]            app.Resources.MergedDictionaries.Add(resources);
[/FONT][/COLOR][/FONT][/COLOR]

Thank you

 

[jmcilhinney]

System.Windows is for WPF. Windows Forms would use System.Windows.Forms, but even the corresponding types will not necessarily support the same functionality.