virtual key board as a form

[nayanar]

hey guys,

i found out the solution

in app1

using System;
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.Runtime.InteropServices;

namespace buttons
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        //**********Using event in user32 for sending button value****************//

        [DllImport("user32")]
        public static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int
        dwExtraInfo);
        private const byte VK_MENU = 0x12;
        private const byte VK_TAB = 0x09;
        private const int KEYEVENTF_EXTENDEDKEY = 0x01;
        private const int KEYEVENTF_KEYUP = 0x02;

        //************************************************************************//

        private void button1_Click(object sender, EventArgs e)
        {
            prevwin();//function to go to previously active window
            keybd_event(0x60, 0, 0, 0);// key press event 
            keybd_event(0x60, 0, KEYEVENTF_KEYUP, 0);// key release event 
        }
        private void button2_Click(object sender, EventArgs e)
        {
            prevwin();
            keybd_event(0x61, 0, 0, 0);
            keybd_event(0x61, 0, KEYEVENTF_KEYUP, 0);
        }

        private void prevwin()
        {
            // using ALT TAB to go to previously active window

            keybd_event(VK_MENU, 0xb8, 0, 0); //Alt Press 
            keybd_event(VK_TAB, 0x8f, 0, 0); // Tab Press 
            keybd_event(VK_TAB, 0x8f, KEYEVENTF_KEYUP, 0); // Tab Release 
            keybd_event(VK_MENU, 0xb8, KEYEVENTF_KEYUP, 0); // Alt Release
        }       
    }
}

In app2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace textboxs
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Shown(object sender, EventArgs e)
        {
            textBox1.Focus();
        }

                
    }
}

I got it Properly. try it out :-). Thank you very much for the help and concern.

[vishal1082]

good job but this worries me, user may see the Alt+Tab menu while typing and it loses and gains focus again and again, and instead of using the Imported API's

SendKeys.Send(Keys.Enter.ToString());

you could have used this, sends "enter" key to the active window.

[nayanar]

Hi,

as i opened both of the application using exe file and tried if the code works, then i did not get ALT+TAB menu. I surely try what u have mentioned above. thank you.