Program.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Text.Json;
using Microsoft.Web.WebView2.WinForms;
//thx
//https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-input
//https://qiita.com/kob58im/items/5a9d909377272d74eefd
//https://www.it-swarm-ja.com/ja/c%23/user32dll%e3%81%aesendinput%e3%82%92%e4%bb%8b%e3%81%97%e3%81%a6%e3%82%ad%e3%83%bc%e3%82%92%e9%80%81%e4%bf%a1%e3%81%99%e3%82%8b/1068919389/
namespace Gamepad
{
public class InputStructures {
[DllImport("user32.dll", SetLastError = true)]
public extern static int
SendInput(int length, ref InputEvent events, int size);
[DllImport("user32.dll", EntryPoint = "MapVirtualKeyA")]
public extern static int MapVirtualKey(int wCode, int wMapType);
public const int MOUSEEVENTF_MOVE = 0x01;
public const int MOUSEEVENTF_LEFTDOWN = 0x02;
public const int MOUSEEVENTF_LEFTUP = 0x04;
public const int MOUSEEVENTF_RIGHTDOWN = 0x08;
public const int MOUSEEVENTF_RIGHTUP = 0x10;
public const int MOUSEEVENTF_MIDDLEDOWN = 0x20;
public const int MOUSEEVENTF_MIDDLEUP = 0x40;
public const int KEYEVENTF_KEYUP = 0x02;
public const int MAPVK_VK_TO_VSC = 0;
[StructLayout(LayoutKind.Sequential)]
public struct InputEvent{
public int Type;
public InputUnion Data;
}
[StructLayout(LayoutKind.Explicit)]
public struct InputUnion{
[FieldOffset(0)] public MouseInput Mouse;
[FieldOffset(0)] public KeyboardInput Keyboard;
}
[StructLayout(LayoutKind.Sequential)]
public struct MouseInput{
public int X;
public int Y;
public int MouseData;
public int Flags;
public int Time;
public IntPtr ExtraInfo;
}
[StructLayout(LayoutKind.Sequential)]
public struct KeyboardInput{
public short VirtualKey;
public short ScanCode;
public int Flags;
public int Time;
public IntPtr ExtraInfo;
}
}
[ComVisible(true)]
public class Bridge : InputStructures {
public class ControllerEvent{
public string type { get; set; }
public string key { get; set; }
public int button { get; set; }
public float x { get; set; }
public float y { get; set; }
}
public void dispatch(string s){
var e = JsonSerializer.Deserialize<ControllerEvent>(s);
switch(e.type){
case "mousemove": SendMouseMove(e); break;
case "mousedown": SendMouse(e); break;
case "mouseup": SendMouse(e); break;
case "keydown": SendKeyboard(e); break;
case "keyup": SendKeyboard(e); break;
}
}
static readonly Dictionary<string,object>
flag = new Dictionary<string,object>(){
{"keydown", 0},
{"keyup", KEYEVENTF_KEYUP},
{"mousemove", MOUSEEVENTF_MOVE},
{"mousedown", new []{
MOUSEEVENTF_LEFTDOWN,
MOUSEEVENTF_MIDDLEDOWN,
MOUSEEVENTF_RIGHTDOWN,
}},
{"mouseup", new []{
MOUSEEVENTF_LEFTUP,
MOUSEEVENTF_MIDDLEUP,
MOUSEEVENTF_RIGHTUP,
}}
};
static void SendMouseMove(ControllerEvent e){
var v = new InputEvent(){Type = 0};
v.Data.Mouse = new MouseInput(){
Flags = (int)flag[e.type],
X = (int)Math.Round(e.x),
Y = (int)Math.Round(e.y),
};
SendInput(1, ref v, Marshal.SizeOf(v));
}
static void SendMouse(ControllerEvent e){
var v = new InputEvent(){Type = 0};
v.Data.Mouse = new MouseInput(){
Flags = (int)(flag[e.type] as int[])[e.button]
};
SendInput(1, ref v, Marshal.SizeOf(v));
}
static void SendKeyboard(ControllerEvent e){
if (Keys.TryParse(e.key, out Keys k)){
var v = new InputEvent(){Type = 1};
v.Data.Keyboard = new KeyboardInput(){
VirtualKey = (short)k,
ScanCode = (short)MapVirtualKey((int)k,MAPVK_VK_TO_VSC),
Flags = (int)flag[e.type],
};
SendInput(1, ref v, Marshal.SizeOf(v));
}
}
}
public class Browser : Form {
public Browser(string html){
ClientSize = new System.Drawing.Size(600,400);
Text = "Gamepad";
var v = new WebView2(){
Source = new Uri(GetPath()+"\\"+html),
Size = ClientSize,
};
v.NavigationCompleted += (s,e) =>
v.CoreWebView2.AddHostObjectToScript("bridge",new Bridge());
SizeChanged += (s,e) => v.Size = ClientSize;
Controls.Add(v);
}
private static string GetPath(){
var p = System.Diagnostics.Process.GetCurrentProcess();
return System.IO.Path.GetDirectoryName(p.MainModule.FileName);
}
}
static class Program
{
[STAThread]
static void Main()
{
Application.SetHighDpiMode(HighDpiMode.SystemAware);
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Browser("Gamepad.html"));
}
}
}
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