y-theta / deskbandtest Goto Github PK

using System;
using System.Windows;
using System.Windows.Interop;

namespace WMessager
{
    public class WMessage
    {
        public event EventHandler reciveWMessage;
        private int MESSAGENUMBER { get; set; }

        public IntPtr Hwnd { get; set; }
        public WMessage(object element, int message)
        {
            MESSAGENUMBER = message;
    
            if (element is Window)
            { Hwnd = new WindowInteropHelper((Window)element).EnsureHandle(); }
            else
            { Hwnd = ((HwndSource)PresentationSource.FromVisual((System.Windows.Media.Visual)element)).Handle; }

            HwndSource.FromHwnd(Hwnd)?.AddHook(HwndHandler);
        }

        private IntPtr HwndHandler(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
        {
            if (msg == MESSAGENUMBER)
            {
                this.reciveWMessage?.Invoke(this, new EventArgs());
            }
            handled = false;
            return IntPtr.Zero;
        }
    }
}

        WMessage wMessage = new WMessage(this, 26);    //  26是各种Windows消息
        wMessage.reciveWMessage += borderBrushChange;


        // WMessager 跟随系统改变颜色
        private void borderBrushChange(object sender, EventArgs e)
        {
            Label.Text = "test";
        }