c#调用系统键盘（触摸键盘和屏幕键盘） 调用触摸键盘（win8及其以上有触摸键盘） ///

/// 触控键盘 ///

public static class TouchKeyBoard { private const Int32 WM_MOVE = 0x0003; private const Int32 WM_SYSCOMMAND = 274; private const UInt32 SC_CLOSE = 61536; [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "PostMessage")] private static extern bool PostMessage(IntPtr hWnd, int Msg, int wParam, int lParam); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "PostMessage")] private static extern bool PostMessage(IntPtr hWnd, int Msg, uint wParam, uint lParam); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "PostMessage")] private static extern bool PostMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "FindWindow")] private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "RegisterWindowMessage")] private static extern int RegisterWindowMessage(string lpString); private static readonly IntPtr HWND_TOP = new IntPtr(0); //将窗口置于Z序的顶部 private static readonly IntPtr HWND_TOPMOST = new IntPtr(-1); //将窗口置于所有非顶层窗口之上。即使窗口未被激活窗口也 将保持顶级位置 private static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2); //不是顶部 //标识位uFlags private const UInt32 SWP_NOSIZE = 0x0001; //保持当前的大小（忽略cx和cy参数） private const UInt32 SWP_NOMOVE = 0x0002; //保持当前的位置（忽略x和y参数） private const UInt32 SWP_NOZORDER = 0x0004;//保持当前的次序（忽略pWndInsertAfter） private const UInt32 SWP_NOREDRAW = 0x0008;//不重画变化。如果设置了这个标志，则不发生任何种类的变化 private const UInt32 SWP_NOACTIVATE = 0x0010;//不激活窗口。如果没有设置这个标志，则窗口将被激活并移动到顶层或非顶 层窗口组（依赖于pWndInsertAfter参数的设置）的顶部 private const UInt32 SWP_FRAMECHANGED = 0x0020;//向窗口发送一条WM_NCCALCSIZE消息，即使窗口的大小不会改变。如 果没有指定这个标志，则仅当窗口的大小发生变化时才发送WM_NCCALCSIZE消息 private const UInt32 SWP_SHOWWINDOW = 0x0040;//显示窗口 private const UInt32 SWP_HIDEWINDOW = 0x0080;//隐藏窗口 private const UInt32 SWP_NOCOPYBITS = 0x0100;// 废弃这个客户区的内容。如果没有指定这个参数，则客户区的有效内容将被 保存， private const UInt32 SWP_NOOWNERZORDER = 0x0200;//不改变拥有者窗口在Z轴次序上的位置。 private const UInt32 SWP_NOSENDCHANGING = 0x0400;//防止窗口接收WM_WINDOWPOSCHANGING消息 private const UInt32 TOPMOST_FLAGS = SWP_NOMOVE | SWP_NOSIZE; ///



/// 设置窗口位置 /// /// 窗口句柄 /// 在z序中的位于被置位的窗口前的窗口句柄 /// /// /// /// /// 标识位uFlags /// [DllImport("user32.dll", SetLastError = true, EntryPoint = "SetWindowPos")] private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags); [DllImport("user32.dll", SetLastError = true, EntryPoint = "MoveWindow")] private static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint); [DllImport("user32.dll", SetLastError = true, EntryPoint = "GetForegroundWindow")] public static extern IntPtr GetForegroundWindow(); [DllImport("user32.dll", SetLastError = true, EntryPoint = "GetWindowRect")] public static extern int GetWindowRect(IntPtr hwnd, ref System.Drawing.Rectangle lpRect); //显示触摸键盘 public static void ShowInputPanel() { String _file = "C:\\Program Files\\Common Files\\microsoft shared\\ink\\TabTip.exe"; if (File.Exists(_file)) { using (Process _process = Process.Start(_file)) { }; } } //关闭触摸键盘 public static void HideInputPanel() { try { IntPtr _touchhWnd = IntPtr.Zero; _touchhWnd = FindWindow("IPTip_Main_Window", null); if (_touchhWnd != IntPtr.Zero) PostMessage(_touchhWnd, WM_SYSCOMMAND, SC_CLOSE, 0); } catch { } } } 调用屏幕键盘 ///

/// 调用屏幕键盘 

/// public class ScreenKeyBoard { private const Int32 WM_MOVE = 0x0003; private const Int32 WM_SYSCOMMAND = 274; private const UInt32 SC_CLOSE = 61536; [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "PostMessage")] private static extern bool PostMessage(IntPtr hWnd, int Msg, int wParam, int lParam); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "PostMessage")] private static extern bool PostMessage(IntPtr hWnd, int Msg, uint wParam, uint lParam); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "PostMessage")] private static extern bool PostMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "FindWindow")] private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); [DllImport("User32.dll", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "RegisterWindowMessage")] private static extern int RegisterWindowMessage(string lpString); private static readonly IntPtr HWND_TOP = new IntPtr(0); //将窗口置于Z序的顶部 private static readonly IntPtr HWND_TOPMOST = new IntPtr(-1); //将窗口置于所有非顶层窗口之上。即使窗口未被激活窗口也 将保持顶级位置 private static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2); //不是顶部 //标识位uFlags private const UInt32 SWP_NOSIZE = 0x0001; //保持当前的大小（忽略cx和cy参数） private const UInt32 SWP_NOMOVE = 0x0002; //保持当前的位置（忽略x和y参数） private const UInt32 SWP_NOZORDER = 0x0004;//保持当前的次序（忽略pWndInsertAfter） private const UInt32 SWP_NOREDRAW = 0x0008;//不重画变化。如果设置了这个标志，则不发生任何种类的变化 private const UInt32 SWP_NOACTIVATE = 0x0010;//不激活窗口。如果没有设置这个标志，则窗口将被激活并移动到顶层或非顶 层窗口组（依赖于pWndInsertAfter参数的设置）的顶部 private const UInt32 SWP_FRAMECHANGED = 0x0020;//向窗口发送一条WM_NCCALCSIZE消息，即使窗口的大小不会改变。如 果没有指定这个标志，则仅当窗口的大小发生变化时才发送WM_NCCALCSIZE消息 private const UInt32 SWP_SHOWWINDOW = 0x0040;//显示窗口 private const UInt32 SWP_HIDEWINDOW = 0x0080;//隐藏窗口 private const UInt32 SWP_NOCOPYBITS = 0x0100;// 废弃这个客户区的内容。如果没有指定这个参数，则客户区的有效内容将被 保存， private const UInt32 SWP_NOOWNERZORDER = 0x0200;//不改变拥有者窗口在Z轴次序上的位置。 private const UInt32 SWP_NOSENDCHANGING = 0x0400;//防止窗口接收WM_WINDOWPOSCHANGING消息 private const UInt32 TOPMOST_FLAGS = SWP_NOMOVE | SWP_NOSIZE; ///

/// 设置窗口位置 ///

/// 窗口句柄 /// 在z序中的位于被置位的窗口前的窗口句柄 /// /// /// /// /// 标识位uFlags /// 

[DllImport("user32.dll", SetLastError = true, EntryPoint = "SetWindowPos")] private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags); [DllImport("user32.dll", SetLastError = true, EntryPoint = "MoveWindow")] private static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint); [DllImport("user32.dll", SetLastError = true, EntryPoint = "GetForegroundWindow")] public static extern IntPtr GetForegroundWindow(); [DllImport("user32.dll", SetLastError = true, EntryPoint = "GetWindowRect")] public static extern int GetWindowRect(IntPtr hwnd, ref System.Drawing.Rectangle lpRect); //显示屏幕键盘 public static void ShowInputPanel() { using (Process _process = Process.Start("osk.exe")) { }; //Task.Run()方法是.net4.5才有的方法 Task.Run(() => { try { Thread.Sleep(200); IntPtr TouchhWnd = IntPtr.Zero; TouchhWnd = FindWindow(null, "屏幕键盘"); if (TouchhWnd != IntPtr.Zero) { //设置osk.exe屏幕键盘窗体位置、大小时程序需具备管理员权限，否则不起作用 SetWindowPos(TouchhWnd, HWND_TOPMOST, 0, 0, 400, 300, SWP_SHOWWINDOW); } } catch { } }); } //关闭屏幕键盘 public static void HideInputPanel() { foreach (Process _process in Process.GetProcesses()) { if (_process.ProcessName == "osk") { _process.Kill(); _process.Close(); break; } } } }