C#

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;
using System.Net;
using Strings;
using System.IO;
using System.Text.RegularExpressions;
using System.Net.Mail;
using System.Threading;
using System.Diagnostics;
using System.Runtime.InteropServices;



namespace GenericTester
{
    public partial class Form1 : Form
    {
        private static uint SC_RESTORE = 0xF120;
        private static uint SC_MAXIMIZE = 0xF030;
        private static uint SC_MINIMIZE = 0xF020;
        private static uint WM_SYSCOMMAND = 0x0112;
        
        [DllImport("user32.dll")]
        public static extern bool PostMessage(IntPtr hWnd, [MarshalAs(UnmanagedType.U4)] uint Msg, IntPtr wParam, IntPtr lParam);

        [DllImport("User32.Dll", EntryPoint = "PostMessageA")]
        static extern bool PostMessage(IntPtr hWnd, uint msg, int wParam, int lParam);

        [DllImport("user32.dll", EntryPoint = "FindWindowA")]
        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("user32.dll")]
        static extern byte VkKeyScan(string ch); 

     
        public Form1()
        {
            InitializeComponent();
           
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            
        }

        private void button1_Click(object sender, EventArgs e)
        {
            const int WM_KEYDOWN = 0x100;

            const int WM_KEYUP = 0x101;

           
            Thread.Sleep(3000);
            Process[] processes = Process.GetProcessesByName("javaw");

            foreach (Process p in processes)
            {

                IntPtr pFoundWindow = p.MainWindowHandle;
                PostMessage(pFoundWindow, WM_KEYDOWN, VkKeyScan("{F2}"), 0);
                

            }
            MessageBox.Show("Done");
            
        }

foreach(Process process in Process.GetProcessesByName(textBoxProcessName.Text))
{
   IntPtr hWnd = process.MainWindowHandle;
   PostMessage(hWnd, WM_KEYDOWN, 0x74, 0);//<-- change to 0x71
}

private void button1_Click(object sender, EventArgs e)
{
    const int WM_KEYDOWN = 0x100;

    const int WM_KEYUP = 0x101;

    Process[] processes = null;
    if (Process.GetProcessesByName("javaw") != null)
    {
       processes = Process.GetProcessesByName("javaw");

    }


    foreach (Process p in processes)
    {
        IntPtr pFoundWindow = p.MainWindowHandle;

        //MessageBox.Show(p.MainWindowHandle + " " + p.MainWindowTitle);
        SetForegroundWindow(pFoundWindow.ToInt32());
        //MessageBox.Show("About to send F2 keystroke");
        Thread.Sleep(2000);
        SendKeys.Send("{F2}");
        //MessageBox.Show("Window int pointer for " + p + " is " + pFoundWindow.ToString());
        PostMessage(pFoundWindow, WM_KEYDOWN, 0x71, 0);//<-- change to 0x71, 0x74 is F5

    }

}

musefan wrote:

perhaps a miss use of this technique

public byte[] ReadFile(string filePath)
        {
            byte[] buffer;
            FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
            try
            {
                int length = (int)fileStream.Length;  // get file length
                buffer = new byte[length];            // create buffer
                int count;                            // actual number of bytes read
                int sum = 0;                          // total number of bytes read

                // read until Read method returns 0 (end of the stream has been reached)
                while ((count = fileStream.Read(buffer, sum, length - sum)) > 0)
                    sum += count;  // sum is a buffer offset for next reading
            }
            finally
            {
                fileStream.Close();
            }
            return buffer;
        }