基於WAF框架：WPF Application Framework (WAF)

View層XAML中設定熱鍵。

    <Window.InputBindings>
        <!--<KeyBinding Command="{Binding SaveCommand}" Key="S" Modifiers="Control"/>-->
        <KeyBinding Command="{Binding AboutCommand}" Key="F1"/>
    </
 
Window.InputBindings>

ViewModel中定義該AboutCommand命令。

        private ICommand aboutCommand;
        public ICommand AboutCommand
        {
            get { return aboutCommand; }
            set { SetProperty(ref aboutCommand,value); }
        }

控制層寫AboutCommand命令的實現。

namespace WafApplication1.Applications.Controllers
 

{
    [Export]
    internal class ApplicationController
    {
        private readonly ShellViewModel shellViewModel;
        private readonly DelegateCommand aboutCommand;

        [ImportingConstructor]
        public ApplicationController(ShellViewModel shellViewModel)
        {
            this
 
.shellViewModel = shellViewModel;
            this.aboutCommand = new DelegateCommand(AboutCommand);
        }

        private void AboutCommand()
        {
            MessageBox.Show("F1 Command！");
        }

        public void Initialize()
        {
            shellViewModel.AboutCommand = this.aboutCommand;
        }

        public void Run()
        {
            shellViewModel.Show();
        }

        public void Shutdown()
        {
        }
    }
}

執行該專案，按F1即可看到彈出彈窗。

新的問題

給該Window窗體註冊的快捷鍵，必須要在該窗體獲得焦點時快捷鍵才有效。如果該窗體內有別的控制元件（如ListBox）獲取了焦點，再點選該快捷鍵將不起效果。這時候，可考慮同樣給該ListBox控制元件新增相同的快捷鍵命令。

<!-- 快捷鍵 -->
<ListBox.InputBindings>
    <KeyBinding Command="{Binding ShortcutScaleCommand}" Key="F1"/>
</ListBox.InputBindings>