using System;
using System.ComponentModel;
using System.Runtime.InteropServices;
namespace KeyPressDemo
{
/// <summary>
/// Eine Helferklasse welche Methoden zur Verfügung stellt
/// um einen Tastendruck an das aktuell aktive Programm zu senden.
/// </summary>
public class KeyPressHelper
{
/// <summary>
/// Sendet einen Tastendruck an die Aktuell aktive Anwendung.
/// </summary>
/// <param name="oKeyToPress">Die Taste welche an die Anwendung geschickt werden soll.</param>
public static void DoKeyPress(Win32.VK oKeyToPress)
{
uint iReturn;
// Neues Input-Signal
Win32.INPUT oInput = new Win32.INPUT();
// Als Tastaturinput definieren
oInput.type = Win32.INPUT_KEYBOARD;
// Welche Taste?
oInput.ki.wScan = (ushort)oKeyToPress;
// Zeit selbst generieren
oInput.ki.time = 0;
// Keine Zusatzinformationen
oInput.ki.dwExtraInfo = IntPtr.Zero;
//-------------------
// Taste Drücken
//-------------------
oInput.ki.dwFlags = Win32.KEYEVENTF_KEYDOWN;
// 1.Param --> Anzahl Structs(Inputs) in der Liste
// 2.Param --> Inputs welche zu senden sind
// 3.Param --> Größe der Inputs in Bytes
iReturn = Win32.SendInput(1, new Win32.INPUT[] { oInput }, Marshal.SizeOf(oInput));
// Fehler beim Drücken?
if (iReturn != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
//-------------------
// Taste Loslassen
//-------------------
oInput.ki.dwFlags = Win32.KEYEVENTF_KEYUP;
iReturn = Win32.SendInput(1, new Win32.INPUT[] { oInput }, Marshal.SizeOf(oInput));
// Fehler beim Loslassen?
if (iReturn != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
}
public class Win32
{
#region INPUT - Type Werte
public const int INPUT_MOUSE = 0;
public const int INPUT_KEYBOARD = 1;
public const int INPUT_HARDWARE = 2;
#endregion
#region KEYBDINPUT - dwFlags Werte
public const ushort KEYEVENTF_KEYDOWN = 0x0000;
public const ushort KEYEVENTF_KEYUP = 0x0002;
#endregion
#region KEYBDINPUT - wVK Werte
public enum VK
{
/*
* Virtual Keys, Standard Set */
VK_LBUTTON = 0x01,
VK_RBUTTON = 0x02,
VK_CANCEL = 0x03,
VK_MBUTTON = 0x04, /* NOT contiguous with L & RBUTTON */
VK_XBUTTON1 = 0x05, /* NOT contiguous with L & RBUTTON */
VK_XBUTTON2 = 0x06, /* NOT contiguous with L & RBUTTON */
/*
* 0x07 : unassigned */
VK_BACK = 0x08,
VK_TAB = 0x09,
/*
* 0x0A - 0x0B : reserved */
VK_CLEAR = 0x0C,
VK_RETURN = 0x0D,
VK_SHIFT = 0x10,
VK_CONTROL = 0x11,
VK_MENU = 0x12,
VK_PAUSE = 0x13,
VK_CAPITAL = 0x14,
VK_KANA = 0x15,
VK_HANGEUL = 0x15, /* old name - should be here for compatibility */
VK_HANGUL = 0x15,
VK_JUNJA = 0x17,
VK_FINAL = 0x18,
VK_HANJA = 0x19,
VK_KANJI = 0x19,
VK_ESCAPE = 0x1B,
VK_CONVERT = 0x1C,
VK_NONCONVERT = 0x1D,
VK_ACCEPT = 0x1E,
VK_MODECHANGE = 0x1F,
VK_SPACE = 0x20,
VK_PRIOR = 0x21,
VK_NEXT = 0x22,
VK_END = 0x23,
VK_HOME = 0x24,
VK_LEFT = 0x25,
VK_UP = 0x26,
VK_RIGHT = 0x27,
VK_DOWN = 0x28,
VK_SELECT = 0x29,
VK_PRINT = 0x2A,
VK_EXECUTE = 0x2B,
VK_SNAPSHOT = 0x2C,
VK_INSERT = 0x2D,
VK_DELETE = 0x2E,
VK_HELP = 0x2F,
/*
* VK_0 - VK_9 are the same as ASCII '0' - '9' (0x30 - 0x39) * 0x40 : unassigned * VK_A - VK_Z are the same as ASCII 'A' - 'Z' (0x41 - 0x5A) */
VK_LWIN = 0x5B,
VK_RWIN = 0x5C,
VK_APPS = 0x5D,
/*
* 0x5E : reserved */
VK_SLEEP = 0x5F,
VK_NUMPAD0 = 0x60,
VK_NUMPAD1 = 0x61,
VK_NUMPAD2 = 0x62,
VK_NUMPAD3 = 0x63,
VK_NUMPAD4 = 0x64,
VK_NUMPAD5 = 0x65,
VK_NUMPAD6 = 0x66,
VK_NUMPAD7 = 0x67,
VK_NUMPAD8 = 0x68,
VK_NUMPAD9 = 0x69,
VK_MULTIPLY = 0x6A,
VK_ADD = 0x6B,
VK_SEPARATOR = 0x6C,
VK_SUBTRACT = 0x6D,
VK_DECIMAL = 0x6E,
VK_DIVIDE = 0x6F,
VK_F1 = 0x70,
VK_F2 = 0x71,
VK_F3 = 0x72,
VK_F4 = 0x73,
VK_F5 = 0x74,
VK_F6 = 0x75,
VK_F7 = 0x76,
VK_F8 = 0x77,
VK_F9 = 0x78,
VK_F10 = 0x79,
VK_F11 = 0x7A,
VK_F12 = 0x7B,
VK_F13 = 0x7C,
VK_F14 = 0x7D,
VK_F15 = 0x7E,
VK_F16 = 0x7F,
VK_F17 = 0x80,
VK_F18 = 0x81,
VK_F19 = 0x82,
VK_F20 = 0x83,
VK_F21 = 0x84,
VK_F22 = 0x85,
VK_F23 = 0x86,
VK_F24 = 0x87,
/*
* 0x88 - 0x8F : unassigned */
VK_NUMLOCK = 0x90,
VK_SCROLL = 0x91,
/*
* VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. * Used only as parameters to GetAsyncKeyState() and GetKeyState(). * No other API or message will distinguish left and right keys in this way. */
VK_LSHIFT = 0xA0,
VK_RSHIFT = 0xA1,
VK_LCONTROL = 0xA2,
VK_RCONTROL = 0xA3,
VK_LMENU = 0xA4,
VK_RMENU = 0xA5,
VK_BROWSER_BACK = 0xA6,
VK_BROWSER_FORWARD = 0xA7,
VK_BROWSER_REFRESH = 0xA8,
VK_BROWSER_STOP = 0xA9,
VK_BROWSER_SEARCH = 0xAA,
VK_BROWSER_FAVORITES = 0xAB,
VK_BROWSER_HOME = 0xAC,
VK_VOLUME_MUTE = 0xAD,
VK_VOLUME_DOWN = 0xAE,
VK_VOLUME_UP = 0xAF,
VK_MEDIA_NEXT_TRACK = 0xB0,
VK_MEDIA_PREV_TRACK = 0xB1,
VK_MEDIA_STOP = 0xB2,
VK_MEDIA_PLAY_PAUSE = 0xB3,
VK_LAUNCH_MAIL = 0xB4,
VK_LAUNCH_MEDIA_SELECT = 0xB5,
VK_LAUNCH_APP1 = 0xB6,
VK_LAUNCH_APP2 = 0xB7,
/*
* 0xB8 - 0xB9 : reserved */
VK_OEM_1 = 0xBA, // ';:' for US
VK_OEM_PLUS = 0xBB, // '+' any country
VK_OEM_COMMA = 0xBC, // ',' any country
VK_OEM_MINUS = 0xBD, // '-' any country
VK_OEM_PERIOD = 0xBE, // '.' any country
VK_OEM_2 = 0xBF, // '/?' for US
VK_OEM_3 = 0xC0, // '`~' for US
/*
* 0xC1 - 0xD7 : reserved */
/*
* 0xD8 - 0xDA : unassigned */
VK_OEM_4 = 0xDB, // '[{' for US
VK_OEM_5 = 0xDC, // '\|' for US
VK_OEM_6 = 0xDD, // ']}' for US
VK_OEM_7 = 0xDE, // ''"' for US
VK_OEM_8 = 0xDF
/*
* 0xE0 : reserved */
}
#endregion
#region INPUT - Definitionen
[StructLayout(LayoutKind.Sequential)]
public struct MOUSEINPUT
{
public int dx;
public int dy;
public uint mouseData;
public uint dwFlags;
public uint time;
public IntPtr dwExtraInfo;
}
[StructLayout(LayoutKind.Sequential)]
public struct KEYBDINPUT
{
public ushort wVk;
public ushort wScan;
public uint dwFlags;
public uint time;
public IntPtr dwExtraInfo;
}
[StructLayout(LayoutKind.Sequential)]
public struct HARDWAREINPUT
{
public uint uMsg;
public ushort wParamL;
public ushort wParamH;
}
[StructLayout(LayoutKind.Explicit)]
public struct INPUT
{
[FieldOffset(0)]
public int type;
[FieldOffset(4)] //*
public MOUSEINPUT mi;
[FieldOffset(4)] //*
public KEYBDINPUT ki;
[FieldOffset(4)] //*
public HARDWAREINPUT hi;
}
#endregion
[DllImport("user32.dll", SetLastError = true)]
public static extern uint SendInput(uint nInputs, INPUT[] pInputs, int cbSize);
}
}
.
