When I click a button on a Windows Forms form, I would like to open a Notepad window containing the text from a TextBox control on the form.
How can I do that?
See Question&Answers more detail:osWhen I click a button on a Windows Forms form, I would like to open a Notepad window containing the text from a TextBox control on the form.
How can I do that?
See Question&Answers more detail:osYou don't need to create file with this string. You can use P/Invoke to solve your problem.
Usage of NotepadHelper class:
NotepadHelper.ShowMessage("My message...", "My Title");
NotepadHelper
class code:
using System;
using System.Runtime.InteropServices;
using System.Diagnostics;
namespace Notepad
{
public static class NotepadHelper
{
[DllImport("user32.dll", EntryPoint = "SetWindowText")]
private static extern int SetWindowText(IntPtr hWnd, string text);
[DllImport("user32.dll", EntryPoint = "FindWindowEx")]
private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
[DllImport("User32.dll", EntryPoint = "SendMessage")]
private static extern int SendMessage(IntPtr hWnd, int uMsg, int wParam, string lParam);
public static void ShowMessage(string message = null, string title = null)
{
Process notepad = Process.Start(new ProcessStartInfo("notepad.exe"));
if (notepad != null)
{
notepad.WaitForInputIdle();
if (!string.IsNullOrEmpty(title))
SetWindowText(notepad.MainWindowHandle, title);
if (!string.IsNullOrEmpty(message))
{
IntPtr child = FindWindowEx(notepad.MainWindowHandle, new IntPtr(0), "Edit", null);
SendMessage(child, 0x000C, 0, message);
}
}
}
}
}
References (pinvoke.net and msdn.microsoft.com):