WPF TextBox 如何获取自定义虚拟软键盘输入的值
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悬赏园豆：5
[待解决问题]
如下图所示，目前是当窗体中的文本框获取焦点后将 自定义虚拟软键盘（keyboard.xaml） 通过keyboard.show() 显示出来，但是文本框获取不到通过虚拟软键盘输入的值，反而是电脑上任意一个软件中能输入文本值的地方，都可以通过这个弹出的软件盘进行字符输入，求教高手支招！谢谢
public partial class MainWindow : Window { [DllImport("User32.dll")] public static extern int GetWindowLong(IntPtr hWnd, int nIdex); [DllImport("User32.dll")] public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong); [DllImport("User32.dll")] public static extern void keybd_event(byte bVK, byte bScan, Int32 dwFlags, int dwExtraInfo); [DllImport("User32.dll")] public static extern uint MapVirtualKey(uint uCode, uint uMapType); [DllImport("user32.dll", EntryPoint = "GetKeyboardState")] public static extern int GetKeyboardState(byte[] pbKeyState); public MainWindow() { InitializeComponent(); } private void Window_Drop(object sender, System.Windows.DragEventArgs e) { // 在此处添加事件处理程序实现。 } private void Window_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e) { // 在此处添加事件处理程序实现。 if (e.LeftButton == MouseButtonState.Pressed) this.DragMove(); } private void Window_Loaded(object sender, RoutedEventArgs e) { if (CapsLockStatus == true) { checkImage.Visibility = Visibility.Visible; } else { checkImage.Visibility = Visibility.Hidden; } IntPtr a = new System.Windows.Interop.WindowInteropHelper(this).Handle; int temp = GetWindowLong(a, -20); SetWindowLong(a, -20, temp | 0x08000000); this.ShowInTaskbar = false; } private void cmd1_LostFocus(object sender, RoutedEventArgs e) { e.Handled = true; } public static bool CapsLockStatus { get { byte[] bs = new byte[256]; GetKeyboardState(bs); return (bs[0x14] == 1); } } private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled) { if (msg == 0x0216) { System.Drawing.Rectangle rect = (System.Drawing.Rectangle)Marshal.PtrToStructure(lParam, typeof(System.Drawing.Rectangle)); this.Left = rect.Left; this.Top = rect.Top; } return IntPtr.Zero; } #region Property & Variable & Constructor private static double _WidthTouchKeyboard = 605; public static double WidthTouchKeyboard { get { return _WidthTouchKeyboard; } set { _WidthTouchKeyboard = value; } } private static bool _ShiftFlag; protected static bool ShiftFlag { get { return _ShiftFlag; } set { _ShiftFlag = value; } } private static bool _CtrlFlag; protected static bool CtrlFlag { get { return _CtrlFlag; } set { _CtrlFlag = value; } } #endregion private void Button_Click(object sender, RoutedEventArgs e) { System.Windows.Controls.Button keybtn = sender as System.Windows.Controls.Button; #region//First Row if (keybtn.Name == "CmdTlide") { addNumkeyINput(0xc0); } else if (keybtn.Name == "cmd1") { addNumkeyINput(0x31); } else if (keybtn.Name == "cmd2") { addNumkeyINput(0x32); } else if (keybtn.Name == "cmd3") { addNumkeyINput(0x33); } else if (keybtn.Name == "cmd4") { addNumkeyINput(0x34); } else if (keybtn.Name == "cmd5") { addNumkeyINput(0x35); } else if (keybtn.Name == "cmd6") { addNumkeyINput(0x36); } else if (keybtn.Name == "cmd7") { addNumkeyINput(0x37); } else if (keybtn.Name == "cmd8") { addNumkeyINput(0x38); } else if (keybtn.Name == "cmd9") { addNumkeyINput(0x39); } else if (keybtn.Name == "cmd0") { addNumkeyINput(0x30); } else if (keybtn.Name == "cmdminus")//-_ { addNumkeyINput(0xbd); } else if (keybtn.Name == "cmd1")//+= { addNumkeyINput(0xbb); } else if (keybtn.Name == "cmdBackspace")//backspace { AddKeyBoardINput(0x08); } #endregion #region//Second Row else if (keybtn.Name == "CmdTab") { AddKeyBoardINput(0x09); } else if (keybtn.Name == "CmdQ") { AddKeyBoardINput(0x51); } else if (keybtn.Name == "Cmdw") { AddKeyBoardINput(0x57); } else if (keybtn.Name == "CmdE") { AddKeyBoardINput(0X45); } else if (keybtn.Name == "CmdR") { AddKeyBoardINput(0X52); } else if (keybtn.Name == "CmdT") { AddKeyBoardINput(0X54); } else if (keybtn.Name == "CmdY") { AddKeyBoardINput(0X59); } else if (keybtn.Name == "CmdU") { AddKeyBoardINput(0X55); } else if (keybtn.Name == "CmdI") { AddKeyBoardINput(0X49); } else if (keybtn.Name == "CmdO") { AddKeyBoardINput(0X4F); } else if (keybtn.Name == "CmdP") { AddKeyBoardINput(0X50); } else if (keybtn.Name == "CmdOpenCrulyBrace") { addNumkeyINput(0xdb); } else if (keybtn.Name == "CmdEndCrultBrace") { addNumkeyINput(0xdd); } else if (keybtn.Name == "CmdOR") { addNumkeyINput(0xdc); } #endregion #region///Third ROw else if (keybtn.Name == "CmdCapsLock")//caps lock { AddKeyBoardINput(0x14); if (checkImage.Visibility != Visibility.Visible) { checkImage.Visibility = Visibility.Visible; } else { checkImage.Visibility = Visibility.Hidden; } } else if (keybtn.Name == "CmdA") { AddKeyBoardINput(0x41); } else if (keybtn.Name == "CmdS") { AddKeyBoardINput(0x53); } else if (keybtn.Name == "CmdD") { AddKeyBoardINput(0x44); } else if (keybtn.Name == "CmdF") { AddKeyBoardINput(0x46); } else if (keybtn.Name == "CmdG") { AddKeyBoardINput(0x47); } else if (keybtn.Name == "CmdH") { AddKeyBoardINput(0x48); } else if (keybtn.Name == "CmdJ") { AddKeyBoardINput(0x4A); } else if (keybtn.Name == "CmdK") { AddKeyBoardINput(0X4B); } else if (keybtn.Name == "CmdL") { AddKeyBoardINput(0X4C); } else if (keybtn.Name == "CmdColon")//;: { addNumkeyINput(0xba); } else if (keybtn.Name == "CmdDoubleInvertedComma")//'" { addNumkeyINput(0xde); } else if (keybtn.Name == "CmdEnter") { AddKeyBoardINput(0x0d); } #endregion #region//Fourth Row else if (keybtn.Name == "CmdShift" || keybtn.Name == "CmdlShift") { if (CtrlFlag) { CtrlFlag = false; ShiftFlag = false; changeInput(); } else { ShiftFlag = true; } } else if (keybtn.Name == "CmdZ") { AddKeyBoardINput(0X5A); } else if (keybtn.Name == "CmdX") { AddKeyBoardINput(0X58); } else if (keybtn.Name == "CmdC") { AddKeyBoardINput(0X43); } else if (keybtn.Name == "CmdV") { AddKeyBoardINput(0X56); } else if (keybtn.Name == "CmdB") { AddKeyBoardINput(0X42); } else if (keybtn.Name == "CmdN") { AddKeyBoardINput(0x4E); } else if (keybtn.Name == "CmdM") { AddKeyBoardINput(0x4D); } else if (keybtn.Name == "CmdLessThan")//<, { addNumkeyINput(0xbc); } else if (keybtn.Name == "CmdGreaterThan")//>. { addNumkeyINput(0xbe); } else if (keybtn.Name == "CmdQuestion")//?/ { addNumkeyINput(0xbf); } else if (keybtn.Name == "CmdSpaceBar") { AddKeyBoardINput(0x20); } #endregion #region//Last row else if (keybtn.Name == "CmdCtrl" || keybtn.Name == "CmdlCtrl")//ctrl { if (ShiftFlag) { ShiftFlag = false; CtrlFlag = false; } else { CtrlFlag = true; } } else if (keybtn.Name == "CmdpageUp") { AddKeyBoardINput(0x21); } else if (keybtn.Name == "CmdpageDown") { AddKeyBoardINput(0x22); } else if (keybtn.Name == "CmdClose")//关闭键盘 { this.Close(); } else if(keybtn.Name == "CmdTypeWriting") { changeInput(); } #endregion } //切换输入法 private void changeInput() { keybd_event(0x11, 0, 0, 0); keybd_event(0x10, 0, 0, 0); keybd_event(0x11, 0, 0x02, 0); keybd_event(0x10, 0, 0x02, 0); } private static void addNumkeyINput(byte input) { if (CtrlFlag) { CtrlFlag = false; ShiftFlag = false; keybd_event(input, 0, 0, 0); keybd_event(input, 0, 0x02, 0); } else { if (!ShiftFlag) { keybd_event(input, 0, 0, 0); keybd_event(input, 0, 0x02, 0); } else { keybd_event(0x10, 0, 0, 0);//shift keybd_event(input, 0, 0, 0); keybd_event(input, 0, 0x02, 0); keybd_event(0x10, 0, 0x02, 0); ShiftFlag = false; } } } private static void AddKeyBoardINput(byte input) { if (CtrlFlag) { CtrlFlag = false; ShiftFlag = false; keybd_event(input, 0, 0, 0); keybd_event(input, 0, 0x02, 0); } else { if (ShiftFlag) { keybd_event(input, 0, 0, 0); keybd_event(input, 0, 0x02, 0); ShiftFlag = false; } else { keybd_event(input, 0, 0, 0); keybd_event(input, 0, 0x02, 0); } } } public struct GUITHREADINFO { public int cbSize; public int flags; public int hwndActive; public int hwndFocus; public int hwndCapture; public int hwndMenuOwner; public int hwndMoveSize; public int hwndCaret; public System.Drawing.Rectangle rcCaret; } [DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] public static extern bool GetGUIThreadInfo(uint idThread, ref GUITHREADINFO lpgui); [DllImport("user32")] public static extern IntPtr GetForegroundWindow(); [DllImport("user32", SetLastError = true)] public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId); protected override void OnSourceInitialized(EventArgs e) { base.OnSourceInitialized(e); HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource; if (hwndSource != null) hwndSource.AddHook(new HwndSourceHook(this.WndProc)); } }
所有回答(1)
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1.处理焦点（无焦点状态）；
2.模拟键盘（可模拟窗口消息，也可修改虚拟键盘）
不懂，能否详细说说
