cscの作法 その289

概要

cscの作法、調べてみた。
SendInput使ってみた。

参考にしたページ

サンプルコード

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;

class MainForm : Form {
	private static class NativeMethods {
		[DllImport("user32.dll", SetLastError = true)]
		public extern static void SendInput(int nInputs, Input[] pInputs, int cbsize);
		[DllImport("user32.dll", EntryPoint = "MapVirtualKeyA")]
		public extern static int MapVirtualKey(int wCode, int wMapType);
	}
	[StructLayout(LayoutKind.Sequential)]
	private struct POINT {
		public int x;
		public int y;
	}
	[StructLayout(LayoutKind.Sequential)]
	struct MouseInput {
		public int X;
		public int Y;
		public int Data;
		public int Flags;
		public int Time;
		public IntPtr ExtraInfo;
	}
	[StructLayout(LayoutKind.Sequential)]
	struct KeyboardInput {
		public short VirtualKey;
		public short ScanCode;
		public int Flags;
		public int Time;
		public IntPtr ExtraInfo;
	}
	[StructLayout(LayoutKind.Sequential)]
	struct HardwareInput {
		public int uMsg;
		public short wParamL;
		public short wParamH;
	}
	[StructLayout(LayoutKind.Sequential)]
	struct Input {
		public int Type;
		public InputUnion ui;
	}
	[StructLayout(LayoutKind.Explicit)]
	struct InputUnion {
		[FieldOffset(0)]
		public MouseInput Mouse;
		[FieldOffset(0)]
		public KeyboardInput Keyboard;
		[FieldOffset(0)]
		public HardwareInput Hardware;
	}
	private const int KEYEVENTF_EXTENDEDKEY = 0x0001;
	private const int KEYEVENTF_KEYUP = 0x0002;
	private const int KEYEVENTF_SCANCODE = 0x0008;
	private const int KEYEVENTF_UNICODE = 0x0004;
	private const int MAPVK_VK_TO_VSC = 0;
	TextBox txt;
	MainForm() {
		Button btn = new Button();
		btn.Location = new Point(130, 130);
		btn.Size = new Size(70, 30);
		btn.Text = "sendkey";
		btn.Click += btn_Click;
		Controls.Add(btn);
		txt = new TextBox();
		txt.Location = new Point(30, 30);
		txt.Size = new Size(100, 30);
		txt.Text = "koko mite";
		Controls.Add(txt);
	}
	private void btn_Click(object sender, EventArgs e) {
			SendInputKeyPressAndRelease(Keys.Tab);
			SendInputKeyPressAndRelease(Keys.A);
		}
	private static void SendInputKeyPressAndRelease(Keys key) {
		Input[] inputs = new Input[2];
		int vsc = NativeMethods.MapVirtualKey((int) key, MAPVK_VK_TO_VSC);
		inputs[0] = new Input();
		inputs[0].Type = 1;
		inputs[0].ui.Keyboard.VirtualKey = (short) key;
		inputs[0].ui.Keyboard.ScanCode = (short) vsc;
		inputs[0].ui.Keyboard.Flags = 0;
		inputs[0].ui.Keyboard.Time = 0;
		inputs[0].ui.Keyboard.ExtraInfo = IntPtr.Zero;
		inputs[1] = new Input();
		inputs[1].Type = 1;
		inputs[1].ui.Keyboard.VirtualKey = (short) key;
		inputs[1].ui.Keyboard.ScanCode = (short) vsc;
		inputs[1].ui.Keyboard.Flags = KEYEVENTF_KEYUP;
		inputs[1].ui.Keyboard.Time = 0;
		inputs[1].ui.Keyboard.ExtraInfo = IntPtr.Zero;
		NativeMethods.SendInput(inputs.Length, inputs, Marshal.SizeOf(inputs[0]));
	}
	[STAThread]
	static void Main(string[] args) {
		Application.Run(new MainForm());
	}
}

以上。