Windows Mobile中有一个小键盘的那个东西，会在任务栏上显示，点一下那个图标，会弹出小键盘，我想拦截这个小键盘的弹出，监视他的各种信息，我按照常规的方式，首先找到MS_SIPBUTTON这个窗口，然后试用SetWindowLong来替换他的窗口过程，以达到来监视WM_SETTINGCHANGE这个消息，来即时的监视键盘开启与关闭的状态。但是比较奇怪的时候，窗口过程勾取了之后，整个程序瘫痪了。这是啥子原因。希望专家帮忙帮忙！代码如下！
- C# code
public sealed class DxKeyBoardOper { private static IntPtr KeyBoardWnd = IntPtr.Zero; private static bool isInited = false; private static bool IsWndHooked = false; private static bool CanPopMenu = true; private static IntPtr oldWndProc;//保存原窗口过程 public static bool initOperate() { //先找到键盘按钮句柄 KeyBoardWnd = DxNativeWindowsApi.FindWindow("MS_SIPBUTTON", "MS_SIPBUTTON"); if (KeyBoardWnd != IntPtr.Zero) { //替换窗口过程 isInited = true; return true; } return false; } public static void EndKeyBoardOper() { //关闭所有的 UnHookWndProc(); if (isInited) { isInited = false; KeyBoardWnd = IntPtr.Zero; }; } public static void HookWndProc() { if (!isInited) { initOperate(); if (isInited && !IsWndHooked) { //DxNativeWindowsApi.SetWindowLong(KeyBoardWnd, DxWin32Consts.GWL_WNDPROC, Marshal.GetFunctionPointerForDelegate()); oldWndProc = (IntPtr)DxNativeWindowsApi.GetWindowLong(KeyBoardWnd, DxWin32Consts.GWL_WNDPROC); DxNativeWindowsApi.SetWindowLong(KeyBoardWnd, DxWin32Consts.GWL_WNDPROC, new DxWindowProcHook.WndProc(WindowProc)); IsWndHooked = true; } } } public static void UnHookWndProc() { if (IsWndHooked) { IsWndHooked = false; DxNativeWindowsApi.SetWindowLong(KeyBoardWnd, DxWin32Consts.GWL_WNDPROC, oldWndProc); } } public static bool CancleKeyMenuPopUp { get { return CanPopMenu; } set { CanPopMenu = value; HookWndProc(); } } private static int WindowProc(IntPtr hwnd, uint msg, uint wParam, int lParam) { return DxNativeWindowsApi.CallWindowProc(oldWndProc, hwnd, msg, wParam, lParam); switch(msg) { case DxMessages.WM_SETTINGCHANGE: if (wParam == DxWin32Consts.SPI_SETSIPINFO) { //设置显示软键盘 DxNativeApiStructs.SIPINFO sipInfo = new DxNativeApiStructs.SIPINFO(); sipInfo.cbSize = Marshal.SizeOf(typeof(DxNativeApiStructs.SIPINFO)); DxNativeWindowsApi.SipGetInfo(ref sipInfo); if ((sipInfo.fdwFlags & (int)WindowsEnum.SIPStatus.SIPF_ON) == (int)WindowsEnum.SIPStatus.SIPF_ON) { //打开软键盘 } else { //关闭软键盘 } } break; case DxMessages.WM_INITMENUPOPUP: IntPtr menuhand = (IntPtr)wParam; DxNativeWindowsApi.DestroyMenu(menuhand); break; } } }------解决方案--------------------
哈哈。。。支持下啊~不错
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