c# wpf 发送键盘消息
如下适合一般的键盘发送消息，不适合DX消息机制。
第一种----------------------------
using System.Windows.Forms; System.Windows.Forms.SendKeys.SendWait("{Left}");//原来写法 SendKeys.SendWait("{Left}");
第二种-----------------------------
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Input; using System.Runtime.InteropServices; using System.Security; using System.Security.Permissions; using System.ComponentModel; namespace KinectController { class KeyboardToolkit { internal static class NativeMethods { #region User32 // Various Win32 constants internal const int KeyeventfKeyup = 0x0002; internal const int KeyeventfScancode = 0x0008; internal const int InputKeyboard = 1; // Various Win32 data structures [StructLayout(LayoutKind.Sequential)] internal struct INPUT { internal int type; internal INPUTUNION union; }; [StructLayout(LayoutKind.Explicit)] internal struct INPUTUNION { [FieldOffset(0)] internal MOUSEINPUT mouseInput; [FieldOffset(0)] internal KEYBDINPUT keyboardInput; }; [StructLayout(LayoutKind.Sequential)] internal struct MOUSEINPUT { internal int dx; internal int dy; internal int mouseData; internal int dwFlags; internal int time; internal IntPtr dwExtraInfo; }; [StructLayout(LayoutKind.Sequential)] internal struct KEYBDINPUT { internal short wVk; internal short wScan; internal int dwFlags; internal int time; internal IntPtr dwExtraInfo; }; // Importing various Win32 APIs that we need for input [DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)] internal static extern int GetSystemMetrics(int nIndex); [DllImport("user32.dll", CharSet = CharSet.Auto)] internal static extern int MapVirtualKey(int nVirtKey, int nMapType); [DllImport("user32.dll", SetLastError = true)] internal static extern int SendInput(int nInputs, ref INPUT mi, int cbSize); [DllImport("user32.dll", CharSet = CharSet.Auto)] internal static extern short VkKeyScan(char ch); #endregion User32 } public static class Keyboard { /// <summary> /// Presses down a key. /// </summary> /// <param name="key">The key to press.</param> public static void Press(Key key) { SendKeyboardInput(key, true); } /// <summary> /// Releases a key. /// </summary> /// <param name="key">The key to release.</param> public static void Release(Key key) { SendKeyboardInput(key, false); } /// <summary> /// Resets the system keyboard to a clean state. /// </summary> public static void Reset() { foreach (Key key in Enum.GetValues(typeof(Key))) { if (key != Key.None && (System.Windows.Input.Keyboard.GetKeyStates(key) & KeyStates.Down) > 0) { Release(key); } } } /// <summary> /// Performs a press-and-release operation for the specified key, which is effectively equivallent to typing. /// </summary> /// <param name="key">The key to press.</param> public static void Type(Key key) { Press(key); //System.Threading.Thread.Sleep(100); Release(key); } [PermissionSet(SecurityAction.Assert, Name = "FullTrust")] private static void SendKeyboardInput(Key key, bool press) { PermissionSet permissions = new PermissionSet(PermissionState.Unrestricted); permissions.Demand(); NativeMethods.INPUT ki = new NativeMethods.INPUT(); ki.type = NativeMethods.InputKeyboard; ki.union.keyboardInput.wVk = (short)KeyInterop.VirtualKeyFromKey(key); ki.union.keyboardInput.wScan = (short)NativeMethods.MapVirtualKey(ki.union.keyboardInput.wVk, 0); int dwFlags = 0; if (ki.union.keyboardInput.wScan > 0) { dwFlags |= NativeMethods.KeyeventfScancode; } if (!press) { dwFlags |= NativeMethods.KeyeventfKeyup; } ki.union.keyboardInput.dwFlags = dwFlags; ki.union.keyboardInput.time = 0; ki.union.keyboardInput.dwExtraInfo = new IntPtr(0); if (NativeMethods.SendInput(1, ref ki, Marshal.SizeOf(ki)) == 0) { throw new Win32Exception(Marshal.GetLastWin32Error()); } } } } }
KeyboardToolkit.Keyboard.Type(Key.Right);//按下右键
第三种-------------------------------
using System; using System.Runtime.InteropServices; using System.Windows.Forms; namespace KinectController { public class WinIo { private const int KBC_KEY_CMD = 0x64; private const int KBC_KEY_DATA = 0x60; [DllImport("winio32.dll")] private static extern bool InitializeWinIo(); [DllImport("winio32.dll")] private static extern bool GetPortVal(IntPtr wPortAddr, out int pdwPortVal, byte bSize); [DllImport("winio32.dll")] private static extern bool SetPortVal(uint wPortAddr, IntPtr dwPortVal, byte bSize); [DllImport("winio32.dll")] private static extern byte MapPhysToLin(byte pbPhysAddr, uint dwPhysSize, IntPtr PhysicalMemoryHandle); [DllImport("winio32.dll")] private static extern bool UnmapPhysicalMemory(IntPtr PhysicalMemoryHandle, byte pbLinAddr); [DllImport("winio32.dll")] private static extern bool GetPhysLong(IntPtr pbPhysAddr, byte pdwPhysVal); [DllImport("winio32.dll")] private static extern bool SetPhysLong(IntPtr pbPhysAddr, byte dwPhysVal); [DllImport("winio32.dll")] private static extern void ShutdownWinIo(); [DllImport("user32.dll")] private static extern int MapVirtualKey(uint Ucode, uint uMapType); private WinIo() { IsInitialize = true; } public static void Initialize() { ShutdownWinIo(); if (InitializeWinIo()) { KBCWait4IBE(); IsInitialize = true; } else { //MessageBox.Show("键盘驱动加载失败！"); } } public static void Shutdown() { if (IsInitialize) ShutdownWinIo(); IsInitialize = false; } private static bool IsInitialize { get; set; } ///等待键盘缓冲区为空 private static void KBCWait4IBE() { int dwVal = 0; do { bool flag = GetPortVal((IntPtr)0x64, out dwVal, 1); } while ((dwVal & 0x2) > 0); } /// 模拟键盘标按下 public static void KeyDown(Keys vKeyCoad) { if (!IsInitialize) return; int btScancode = 0; btScancode = MapVirtualKey((uint)vKeyCoad, 0); KBCWait4IBE(); SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1); KBCWait4IBE(); SetPortVal(KBC_KEY_DATA, (IntPtr)0x60, 1); KBCWait4IBE(); SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1); KBCWait4IBE(); SetPortVal(KBC_KEY_DATA, (IntPtr)btScancode, 1); } /// 模拟键盘弹出 public static void KeyUp(Keys vKeyCoad) { if (!IsInitialize) return; int btScancode = 0; btScancode = MapVirtualKey((uint)vKeyCoad, 0); KBCWait4IBE(); SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1); KBCWait4IBE(); SetPortVal(KBC_KEY_DATA, (IntPtr)0x60, 1); KBCWait4IBE(); SetPortVal(KBC_KEY_CMD, (IntPtr)0xD2, 1); KBCWait4IBE(); SetPortVal(KBC_KEY_DATA, (IntPtr)(btScancode | 0x80), 1); } } }
private WinIo winIo; WinIo.KeyDown(Keys.A); WinIo.KeyUp(Keys.A); // 松开A WinIo.Shutdown(); // 用完后注销
