Sending data to a notepad using processes

Question

I want to send every item from my listbox to a notepad,but my logic is kinda beating me.

private void send_Click(object sender, EventArgs e)
{
    var notepad =          


        

Answer 1

An another option you can find the Edit control of notepad using FindWindowEx and send a WM_SETTEXT message to it using SendMessage. This way you don't need to bring the notepad window to front.

using System.Diagnostics;
using System.Runtime.InteropServices;

[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter,
    string lpszClass, string lpszWindow);
[DllImport("User32.dll")]
static extern int SendMessage(IntPtr hWnd, int uMsg, IntPtr wParam, string lParam);
const int WM_SETTEXT = 0x000C;

private void button1_Click(object sender, EventArgs e)
{
    //Find notepad by its name, or use the instance which you opened yourself
    var notepad = Process.GetProcessesByName("notepad").FirstOrDefault();
    if(notepad!=null)
    {
        var edit = FindWindowEx(notepad.MainWindowHandle, IntPtr.Zero, "Edit", null);
        SendMessage(edit, WM_SETTEXT, IntPtr.Zero, "This is a Text!");
    }
}