原文:
C# 跨进程 设置窗口owner
窗口间跨进程通信
1. 发送方
1 public const int WM_InsertChart_Completed = 0x00AA; 2 3 //查找窗口 4 [DllImport("User32.dll", EntryPoint = "FindWindow")] 5 public static extern IntPtr FindWindow(string lpClassName, string lpWindowName); 6 7 //发送信息 8 [DllImport("User32.dll", EntryPoint = "SendMessage")] 9 public static extern int SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam); 10 11 private void PostMessage() 12 { 13 var procs = Process.GetProcessesByName("MyExample"); 14 15 foreach (var process in procs) 16 { 17 SendMessage(process.MainWindowHandle, WM_InsertChart_Completed, IntPtr.Zero, IntPtr.Zero); 18 } 19 }
还有一个PostMessage方法，和SendMessage类似。
2. 接收方
在winform中，不同进程间窗口通信
1 protected override void DefWndProc(ref Message m) 2 { 3 ...... 4 }
在WPF中，如何在俩个不同进程的窗口之间通信.
1 protected override void OnSourceInitialized(EventArgs e) 2 { 3 base.OnSourceInitialized(e); 4 var hwndSource = PresentationSource.FromVisual(this) as HwndSource; 5 hwndSource?.AddHook(new HwndSourceHook(WndProc)); 6 } 7 public const int WM_InsertChart_Completed = 0x00AA; 8 public static IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled) 9 { 10 if (msg == WM_InsertChart_Completed ) 11 { 12 ............. 13 } 14 15 return hwnd; 16 }
传递具体的数据，可参考：http://www.360doc.com/content/18/0131/15/45112790_726705014.shtml
跨进程设置窗口owner，并禁用父窗口
此跨进程案例中，以子窗口A与父窗口B为例
1. 获取父窗口B的句柄
windowB的句柄Inptr,可以通过应用程序的名称或者线程Id,获取窗口的句柄。具体可参考 C# 通过进程名/进程Id 操作窗口
注：客户端之间如果有跨线程通信机制（局域网等），可以直接将父窗口B的句柄传给另一进程的子窗口A
2. 设置子窗口A的owner
var helper = new WindowInteropHelper(windowA);
helper.Owner = windowBInptr;
设置后，仅仅是显示在父窗口B的上层。禁用父窗口见下~
3. 通过消息机制禁用父窗口
子窗口A弹出后，向父窗口B发送禁用窗口消息：
其中，消息值的定义，不能窗口自带的消息值。窗口自带的消息列表，可参考 https://www.cnblogs.com/shangdawei/p/4014535.html
1 public const int Msg_SetWindowUnEnabled = 100000; 2 public const int Msg_SetWindowEnabled = 100001; 3 4 public static void SetWindowUnEnabled(IntPtr windowIntPtr) 5 { 6 SendMessage(windowIntPtr, Msg_SetWindowUnEnabled, IntPtr.Zero, IntPtr.Zero); 7 } 8 9 public static void SetWindowEnabled(IntPtr windowIntPtr) 10 { 11 SendMessage(windowIntPtr, Msg_SetWindowEnabled, IntPtr.Zero, IntPtr.Zero); 12 } 13 14 //发送信息 15 [DllImport("User32.dll", EntryPoint = "SendMessage")] 16 public static extern int SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
父窗口监听消息，并处理子窗口A发送的窗口禁用消息
1 protected override void OnSourceInitialized(EventArgs e) 2 { 3 base.OnSourceInitialized(e); 4 var hwndSource = PresentationSource.FromVisual(this) as HwndSource; 5 hwndSource?.AddHook(new HwndSourceHook(WndProc)); 6 } 7 8 public IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled) 9 { 10 if (msg == WindowHandleHelper.Msg_SetWindowUnEnabled) 11 { 12 this.IsEnabled = false; 13 } 14 else if (msg == WindowHandleHelper.Msg_SetWindowEnabled) 15 { 16 this.IsEnabled = true; 17 } 18 19 return hwnd; 20 }
4. 跨进程的模态窗口
以上设置将窗口A置于另一进程的窗口B上层，并将窗口B设置为禁用。
如果窗口A需要窗口反馈动画（反馈动画可以是模态，也可以是阴影，见我之前的水文《WPF window 子窗口反馈效果（抖动/阴影渐变)》）
