如何在.NET中监听Windows广播消息？

> WM_SETTINGCHANGE
> WM_DWMCOLORIZATIONCOLORCHANGED
> WM_DWMCOMPOSITIONCHANGED
> WM_THEMECHANGED
> WM_POWERBROADCAST

.NET中设置非WinForm窗口的机制是什么,可以监听广播消息？

即是否有WindowsListener类？

奖金Chatter

在过去,在其他开发环境中,框架提供了AllocateHwnd功能：

HWND listener = AllocateHWnd(ListenerWindowProc);

ListenerWindowProc是我的窗口过程方法：

private void ListenerWindowProc(ref Message msg)
{
    switch (msg.msg)
    {
       case WM_SETTINGCHANGE: 
       {
          ...
       }
       break;
       case WM_POWERBROADCAST:
       {
          ...
       }
       break;
       case WM_THEMECHANGED: 
       {
          ...
       }
       break;
       ...
   }
   DefWindowProc(msg);
}

秘诀是AllocateHwnd功能：

伪代码：

public static HWND AllocateHWnd(WndMethod method)
{
   HWND result;
   WNDCLASS tempClass;
   Boolean classRegistered;

   UtilWindowClass.hInstance := HInstance;
   Boolean classRegistered = GetClassInfo(HInstance,UtilWindowClass.lpszClassName,tempClass);
   if (!classRegistered || (tempClass.lpfnWndProc != @DefWindowProc)
   {
      if classRegistered
      {
         UnregisterClass(utilWindowClass.lpszClassName,HInstance);
         RegisterClass(utilWindowClass);
      }
      result = CreateWindowEx(WS_EX_TOOLWINDOW,'',WS_POPUP,HInstance,null);
      if (!Method != null)
         SetWindowLong(result,GWL_WNDPROC,UInt32(MakeObjectInstance(Method)));
   }
}

使用与UtilWindowClass相关的更多密码.

当你完成后,你会DeallocateHwnd：

DeallocateHwnd(listenerWindow);

我知道在.NET框架深处,他们将响应WM_SETTINGCHANGE并更新内部.NET数据结构.我会窃取该代码,但Reflector找不到对WM_SETTINGCHANGE的引用;大概是因为反编译的代码没有显示常量名称,只是常量0x001A.

更新：

注意：此对象应该是自包含的.使用该类的任何人都不应该修改他们的应用程序,以便我的类返回正确的数据.它应该从Windows本身收听广播,而不是要求开发人员修改他们的应用程序来为我监听某些消息(即它不应该破坏困难或复杂操作的封装)

例如：

public class FrobbingGrobber: IDisposable
{
    private IntPtr hwnd = IntPtr.Zero;

    public FrobbingGrobber
    {
       _hwnd = AllocateHwnd(listenerWindowProc);
    }

    protected virtual void listenerWindowProc(ref Message msg)
    {
       switch (msg.msg)
       {
          case WM_DwmColorizationColorChanged,WM_DwmCompositionChanged: 
          {
              UpdateColorizationColor();
          }
          break;
       }
       DefWindowProc(msg);
    }

    public void UpdateColorizationColor()
    {
        NativeMethods.DwmGetColorizationColorParameters_UndocumentedExport137(ref _color);
    }

    public void Dispose()
    {
        Dispose(true);
    }

    protected void Dispose(Boolean safeToDisposeManagedObjects)
    {
       if (_hwnd != 0)
       {
          DeallocateHwnd(_hwnd);      
          _hwnd = 0;
       }

       if (safeToDisposeManagedObjects)
          GC.SuppressFinalize(this);
    }

    public ~FrobbingGrobber
    {
       //If the user forgot to call Dispose i could (correctly) leak a handle,//or i could fix their mistake for them
       Dispose(false);
    }