C# KeyIn Button for tablet

ButtonKeyTest00.cs

using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Reflection.Emit;

namespace ButtonKeyTest00
{
    

    public partial class Form1 : Form
    {


        //[DllImport("user32.dll")]
        //public static extern IntPtr GetForegroundWindow();

        //[DllImport("user32.dll", EntryPoint = "GetWindowText", CharSet = CharSet.Auto)]
        //public static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
        
        [DllImport("user32.dll")]
        public static extern short GetAsyncKeyState(System.Windows.Forms.Keys vKey);
        bool flgClick = false;
        int count = 0;

        public int ap;
        public string exename1="STA24_Console_BinDataToCSV_rev01";
        public string exename2 = "STA24_Console_MB_SerialMon_rev00";//teratermpro
        public Form1()

        {
            InitializeComponent();
            //
            button1.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button2.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button3.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button4.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button5.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button6.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button7.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button8.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button9.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button10.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button11.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button12.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button13.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button14.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button15.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            button16.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);
            label1.Font = new Font("Arial", 16, FontStyle.Bold, GraphicsUnit.Point);

            button1.Text = "a";
            button2.Text = "u";
            button3.Text = "s";
            button4.Text = "d";
            button5.Text = "1";
            button6.Text = "2";
            button7.Text = "3";
            button8.Text = "4";
            button9.Text = "5";
            button10.Text = "6";
            button11.Text = "7";
            button12.Text = "8";
            button13.Text = "9";
            button14.Text = "0";
            button15.Text = "{Enter}";
            button16.Text = "m";
            radioButton1.Text = exename1;
            radioButton2.Text = exename2;

          

            if (radioButton1.Checked == true)
            {
                ap = 1;
            }
            else
            {
                ap = 2;
            }

          //System.Diagnostics.Process.Start(@C:\Program Files (x86)\teraterm\STA24_Console_BinDataToCSV_rev01.exe");
            radioButton1.Checked= true;
            //System.Diagnostics.Process.Start(@"C:\Program Files (x86)\teraterm\ttermpro.exe");
            this.StartPosition = FormStartPosition.Manual;
            this.Location = new Point(0, 0);

        }
        //-------------Radiobutton-------------------------------
        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked == true)
            {
                ap = 1;
            }
            else
            {
                ap = 2;
            }
        }

        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton2.Checked == true)
            {
                ap = 2;
            }
            else
            {
                ap = 1;
            }
        }



        //------------------Button 定義------------------------------------
        private void button1_Click(object sender, EventArgs e)
        {
            //System.Diagnostics.Process.Start(@"C:\Users\KM\Desktop\rev01\STA24_Console_BinDataToCSV_rev01.exe");
            // Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            if (ap == 1)
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename1);
                //label1.Text = "ap=1";
            }
            else
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename2);
                //label1.Text = "ap=2";
            }
            

            SendKeys.Send("a");
        }
        private void button2_Click(object sender, EventArgs e)
        {
            if (ap == 1)
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename1);
                //label1.Text = "ap=1";
            }
            else
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename2);
                //label1.Text = "ap=2";
            }


            SendKeys.Send("u");
            label1.Text = "u";
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //if (ap == 1)
            // {
            //     Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            // }
            // else
            // {
            Microsoft.VisualBasic.Interaction.AppActivate(exename2);
            //}

            SendKeys.Send("s");
            label1.Text = "s";
        }

        private void button4_Click(object sender, EventArgs e)
        {
            if (ap == 1)
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename1);
                //label1.Text = "ap=1";
            }
            else
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename2);
                //label1.Text = "ap=2";
            }

            SendKeys.Send("d");
                label1.Text = "d";
            
        }



       

        private void button5_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("1");
            label1.Text = "1";
        }

        private void button6_Click(object sender, EventArgs e)
        {

            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("2");
            label1.Text = "2";
        }

        private void button7_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("3");
            label1.Text = "3";
        }
        private void button8_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("4");
            label1.Text = "4";
        }
        private void button9_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("5");
            label1.Text = "5";
        }
        private void button10_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("6");
            label1.Text = "6";
        }
        private void button11_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("7");
            label1.Text = "7";
        }
        private void button12_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("8");
            label1.Text = "8";
        }
        private void button13_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("9");
            label1.Text = "9";
        }

        private void button14_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("0");
            label1.Text = "0";
        }

        private void button15_Click(object sender, EventArgs e)
        {
            Microsoft.VisualBasic.Interaction.AppActivate("STA24_Console_BinDataToCSV_rev01");
            SendKeys.Send("{ENTER}");
            label1.Text = "{ENTER}";
        }

        private void button16_Click(object sender, EventArgs e)
        {
            if (ap == 1)
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename1);
                //label1.Text = "ap=1";
            }
            else
            {
                Microsoft.VisualBasic.Interaction.AppActivate(exename2);
                //label1.Text = "ap=2";
            }

            SendKeys.Send("m");
            label1.Text = "m";
        }
    }
    




    }