static extern UInt32 SendInput(UInt32 numberOfInputs, INPUT[] inputs, Int32 sizeOfInputStructure);
/// <summary>
/// Performs mouse move simulation.
/// </summary>
/// <param name="dX"></param>
/// <param name="dY"></param>
private static void SimulateMouseMove(int dX, int dY, bool absolutePosition)
{
var input = new INPUT();
input.Type = (uint)InputType.MOUSE;
input.Data.Mouse = new MOUSEINPUT();
input.Data.Mouse.dwFlags = MOUSEEVENTF.MOVE;
input.Data.Mouse.mouseData = 0;
input.Data.Mouse.dx = dX;
input.Data.Mouse.dy = dY;
input.Data.Mouse.time = 0;
input.Data.Mouse.dwExtraInfo = IntPtr.Zero;
if (absolutePosition)
{
//if(System.Windows.SystemParameters.Screen > 1
double VirtualScreenX = System.Windows.SystemParameters.VirtualScreenWidth;
double VirtualScreenY = System.Windows.SystemParameters.VirtualScreenHeight;
double PrimaryScreenWidth = System.Windows.SystemParameters.PrimaryScreenWidth;
double PrimaryScreenHeight = System.Windows.SystemParameters.PrimaryScreenHeight;
double PrimaryScreenLeft = VirtualScreenX - PrimaryScreenWidth;
double PrimaryScreenTop = VirtualScreenY - PrimaryScreenHeight;
input.Data.Mouse.dx = (int)((VirtualScreenX - PrimaryScreenLeft) * 65535 / PrimaryScreenWidth);
input.Data.Mouse.dy = (int)((VirtualScreenY - PrimaryScreenTop) * 65535 / PrimaryScreenHeight);
input.Data.Mouse.dwFlags |= MOUSEEVENTF.ABSOLUTE;
}
INPUT[] inputList = new INPUT[1];
inputList[0] = input;
var numberOfSuccessfulSimulatedInputs = SendInput(1, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The mouse move simulation was not successful."));
}
/// <summary>
/// Calls the Win32 SendInput method with a unicode char to simulate the key up
/// </summary>
/// <param name="text">The unicode char to simulate</param>
public static void SimulateUnicodeCharacterUp(char text)
{
var up = new INPUT();
up.Type = (UInt32)InputType.KEYBOARD;
up.Data.Keyboard = new KEYBDINPUT();
up.Data.Keyboard.Vk = 0;
up.Data.Keyboard.Scan = (UInt16)text;
up.Data.Keyboard.Flags = (UInt32)(KeyboardFlag.KEYUP | KeyboardFlag.UNICODE);
up.Data.Keyboard.Time = 0;
up.Data.Keyboard.ExtraInfo = IntPtr.Zero;
INPUT[] inputList = new INPUT[1];
inputList[0] = up;
var numberOfSuccessfulSimulatedInputs = SendInput(1, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The unicode character up simulation for {0} was not successful.", text));
}
/// <summary>
/// Calls the Win32 SendInput method with a stream of KeyDown and KeyUp messages in order to simulate
/// uninterrupted unicode text entry.
/// </summary>
/// <param name="text">The text to be simulated.</param>
public static void SimulateUninteruptedUnicodeString(string text)
{
if (text.Length > UInt32.MaxValue / 2) throw
new ArgumentException(string.Format("The text parameter is too long. It must be less than {0} characters.",
UInt32.MaxValue / 2), "text");
int len = text.Length;
INPUT[] inputList = new INPUT[len * 2];
for (int x = 0; x < len; x++)
{
UInt16 scanCode = text[x];
var down = new INPUT();
down.Type = (UInt32)InputType.KEYBOARD;
down.Data.Keyboard = new KEYBDINPUT();
down.Data.Keyboard.Vk = 0;
down.Data.Keyboard.Scan = (UInt16)scanCode;
down.Data.Keyboard.Flags = (UInt32)KeyboardFlag.UNICODE;
down.Data.Keyboard.Time = 0;
down.Data.Keyboard.ExtraInfo = IntPtr.Zero;
var up = new INPUT();
up.Type = (UInt32)InputType.KEYBOARD;
up.Data.Keyboard = new KEYBDINPUT();
up.Data.Keyboard.Vk = 0;
up.Data.Keyboard.Scan = (UInt16)scanCode;
up.Data.Keyboard.Flags = (UInt32)(KeyboardFlag.KEYUP | KeyboardFlag.UNICODE);
up.Data.Keyboard.Time = 0;
up.Data.Keyboard.ExtraInfo = IntPtr.Zero;
inputList[2 * x] = down;
inputList[2 * x + 1] = up;
}
var numberOfSuccessfulSimulatedInputs = SendInput((UInt32)(len * 2), inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The unicode string simulation for {0} was not successful.", text));
}
/// <summary>
/// Performs Mouse scroll up/down simulation.
/// </summary>
/// <param name="scroll">The number of times to scroll. Possible value to scroll up; negative to scroll down</param>
public static void SimulateMouseWheel(int scroll)
{
const int WHEEL_DELTA = 120;
INPUT input = new INPUT();
input.Type = (uint)InputType.MOUSE;
input.Data.Mouse = new MOUSEINPUT();
input.Data.Mouse.dwFlags = MOUSEEVENTF.WHEEL;
input.Data.Mouse.mouseData = scroll * WHEEL_DELTA;
input.Data.Mouse.dx = 0;
input.Data.Mouse.dy = 0;
input.Data.Mouse.time = 0;
input.Data.Mouse.dwExtraInfo = IntPtr.Zero;
INPUT[] inputList = new INPUT[1];
inputList[0] = input;
var numberOfSuccessfulSimulatedInputs = SendInput(1, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The mouse move simulation was not successful."));
}
/// <summary>
/// Performs Mouse button up/down simulation.
/// </summary>
/// <param name="mouseEvent">The mouse opperation to simulate</param>
/// <param name="xButton">When mouseEvent is either XDOWN or XUP, xButton refers to either XBUTTON1 or XBUTTON2</param>
public static void SimulateMouseButton(MOUSEEVENTF mouseEvent, XButton xButton = XButton.None)
{
var input = new INPUT();
input.Type = (uint)InputType.MOUSE;
input.Data.Mouse = new MOUSEINPUT();
input.Data.Mouse.dwFlags = mouseEvent;
if (mouseEvent == MOUSEEVENTF.XDOWN || mouseEvent == MOUSEEVENTF.XUP)
{
switch (xButton)
{
case XButton.XBUTTON1:
input.Data.Mouse.mouseData = (int)XButton.XBUTTON1;
break;
case XButton.XBUTTON2:
input.Data.Mouse.mouseData = (int)XButton.XBUTTON2;
break;
default:
input.Data.Mouse.mouseData = 0;
break;
}
}
else
{
input.Data.Mouse.mouseData = 0;
}
input.Data.Mouse.dx = 0;
input.Data.Mouse.dy = 0;
input.Data.Mouse.time = 0;
input.Data.Mouse.dwExtraInfo = IntPtr.Zero;
INPUT[] inputList = new INPUT[1];
inputList[0] = input;
var numberOfSuccessfulSimulatedInputs = SendInput(1, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The mouse simulation for {0} was not successful.", mouseEvent.ToString()));
}
/// <summary>
/// Calls the Win32 SendInput method to simulate a Key UP.
/// </summary>
/// <param name="keyCode">The VirtualKeyCode to lift up</param>
public static void SimulateKeyUp(VirtualKey keyCode)
{
var up = new INPUT();
up.Type = (UInt32)InputType.KEYBOARD;
up.Data.Keyboard = new KEYBDINPUT();
up.Data.Keyboard.Vk = (UInt16)keyCode;
up.Data.Keyboard.Scan = (ushort)MapVirtualKeyEx((UInt16)keyCode, MapVirtualKeyMapTypes.MAPVK_VK_TO_VSC_EX, IntPtr.Zero);
up.Data.Keyboard.Flags = (UInt32)KeyboardFlag.KEYUP;
up.Data.Keyboard.Time = 0;
up.Data.Keyboard.ExtraInfo = IntPtr.Zero;
INPUT[] inputList = new INPUT[1];
inputList[0] = up;
var numberOfSuccessfulSimulatedInputs = SendInput(1, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The key up simulation for {0} was not successful.", keyCode));
}
/// <summary>
/// Calls the Win32 SendInput method to simulate a Key UP.
/// </summary>
/// <param name="keyCode">The VirtualKeyCode to lift up</param>
public static void SimulateKeyUp(VirtualKey keyCode, ushort scancode)
{
var up = new INPUT();
up.Type = (UInt32)InputType.KEYBOARD;
up.Data.Keyboard = new KEYBDINPUT();
up.Data.Keyboard.Vk = (UInt16)keyCode;
up.Data.Keyboard.Scan = scancode;
up.Data.Keyboard.Flags = (UInt32)KeyboardFlag.KEYUP;
if (((scancode >> 8) == 0xe0) || ((scancode >> 8) == 0xe1))
up.Data.Keyboard.Flags |= (UInt32)KeyboardFlag.EXTENDEDKEY;
up.Data.Keyboard.Time = 0;
up.Data.Keyboard.ExtraInfo = IntPtr.Zero;
INPUT[] inputList = new INPUT[1];
inputList[0] = up;
var numberOfSuccessfulSimulatedInputs = SendInput(1, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The key up simulation for {0} was not successful.", keyCode));
}
/// <summary>
/// Calls the Win32 SendInput method with a KeyDown and KeyUp message in the same input sequence in order to simulate a Key PRESS.
/// </summary>
/// <param name="keyCode">The VirtualKeyCode to press</param>
public static void SimulateKeyPress(VirtualKey keyCode)
{
var down = new INPUT();
down.Type = (UInt32)InputType.KEYBOARD;
down.Data.Keyboard = new KEYBDINPUT();
down.Data.Keyboard.Vk = (UInt16)keyCode;
down.Data.Keyboard.Scan = 0;
down.Data.Keyboard.Flags = 0;
down.Data.Keyboard.Time = 0;
down.Data.Keyboard.ExtraInfo = IntPtr.Zero;
var up = new INPUT();
up.Type = (UInt32)InputType.KEYBOARD;
up.Data.Keyboard = new KEYBDINPUT();
up.Data.Keyboard.Vk = (UInt16)keyCode;
up.Data.Keyboard.Scan = 0;
up.Data.Keyboard.Flags = (UInt32)KeyboardFlag.KEYUP;
up.Data.Keyboard.Time = 0;
up.Data.Keyboard.ExtraInfo = IntPtr.Zero;
INPUT[] inputList = new INPUT[2];
inputList[0] = down;
inputList[1] = up;
var numberOfSuccessfulSimulatedInputs = SendInput(2, inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0) throw new Exception(string.Format("The key press simulation for {0} was not successful.", keyCode));
}
