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Big picture: if you are "New to coding," I think pursuing something this complex ... inter-op with Word ... is not a good strategy to maximize what you learn. Why not take one of the many extended Rich TextBoxes for WinForms, and use that for your editing control ?
To tango with Word, you need to research, and learn to use, inter-operation between MS Word and C#. Lots of resources on this: search here, and on the net [^]
Then, you need to determine what are the possibilities for intercepting Key Events in MS Word from C#: can you install/hook your own KeyDown handler from C# into the running instance of MS Word ? , [^], For all I know, this may require writing a Word add-in.
If you get that far, then you have to implement your own equivalent to an auto-completion facility: that's not hard: if you ask a specific question on that, I will respond with code.
If you can't get MS Word key events in C# as described above: then you are going to need some form of hook, as Dave K. mentions.
If you do get a hook working, then every keystroke in Word is going to require a call though the hook to your code: I suspect that will have a real impact on performance, depending on your hardware, memory, etc.
«... thank the gods that they have made you superior to those events which they have not placed within your own control, rendered you accountable for that only which is within you own control For what, then, have they made you responsible? For that which is alone in your own power—a right use of things as they appear.» Discourses of Epictetus Book I:12
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Thank for such a detailed reply. It should certainly set me in the right direction.
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As a novice, I would strongly suggest that you "shelve" this project for a while, and get some solid experience with "normal" C# before you think about considering this.
Global C# hooks are not trivial at all, and a very small mistake in your code can seriously destabilize your whole system: they have to "hook" directly into low level stuff and bypass the "usual protection" the OS provides to prevent one app from affecting another. I would recommend good, solid, regular, air-gapped backups before each attempt to do this: you could bugger your system to the point of reformat and reinstall very, very easily...
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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If you create a "context / scenario", it may be easier to move forward.
If you start with a "large" textbox, you can obviously type in some "words".
The "textbox" allows you to determine "where" the cursor is in the textbox, if a "word" is selected, and so forth.
c# - How to get current word at the Caret position from a String(TextBox) which is having SPACE and ENTER key? - Stack Overflow
"Keyboard hooks" require you to practically create your own "word processor"; when all you want to do is "parse some text".
Google "text handling"/ textboxes instead of "hooks".
"(I) am amazed to see myself here rather than there ... now rather than then".
― Blaise Pascal
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Let's say I have a class myClass and I create two object of that class called MyObject1 and MyObject2. Can I do something so that MyObject1 and MyObject2 can be casted into ints like this:
(int)MyObject1 // I want this to compile and the expression should equate 1
(int)MyObject2 // I want this to compile and the expression should equate 2
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I think you're looking for this[^].
For example:
public class MyObjectClass
{
private string internalValue = "Something";
public static implicit operator int(MyObjectClass value)
{
return int.Parse(value.internalValue);
}
public static implicit operator MyObjectClass(int value)
{
return new MyObjectClass(value);
}
private MyObjectClass()
{
}
public MyObjectClass(int value)
{
internalValue = value.ToString();
}
}
And to use it:
MyObjectClass x = new MyObjectClass(201);
int value = (int)x;
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Yes, thanks, this looks like a very good solution.
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So, before we overcomplicate things, why aren't you just putting those objects into an array? 
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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DaveK's post here is an excellent lesson in use of 'implicit operators: I up-voted it, and, so should you !
I wonder why you want to use such a technique, involving casting, boxing, when all you need is a simple integer field, or property, in the class ?
public class MyClass
{
public int Id { private set; get; }
public MyClass(int id)
{
Id = id;
}
}
«... thank the gods that they have made you superior to those events which they have not placed within your own control, rendered you accountable for that only which is within you own control For what, then, have they made you responsible? For that which is alone in your own power—a right use of things as they appear.» Discourses of Epictetus Book I:12
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That's what I use today. Basically, I have portable products (with ARM processors inside) with registers that I can read from and write to with a PC-application:
uint32 readReg(uint address)
void writeReg(uint address, uint newValue)
In the beginning, I used enum that I casted into uint for the addresses, but then I found that I wanted to share some addresses across products but I couldn't figure out a way to inherit enum. So I created a class instead (see for example java - Simulate a class of type enum - Stack Overflow ) but now I wasn't able to cast into uint anymore, which I think is a cleaner solution.
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in C# how can i get my app to start on open if i remove the start function, say i dont want to command it to start, but actually start as soon as i execute the exe file.
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Do you want to try that again? This is not a good question - we cannot work out from that little what you are trying to do.
Remember that we can't see your screen, access your HDD, or read your mind - we only get exactly what you type to work with.
So stop trying to type the minimum words you can get away with and help us to help you!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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i have a system that monitors the contents of a file. File checker created in C#, with a start and stop function, i want to use task scheduler to startup the app and stop it, but it cant start the actual file monitoring process, is the a way in which i could remove the start and stop function so that the application starts monitoring the files immediately its executed and stops when it is closed .
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How do you expect us to know that, given that we can't see your code at all and have no idea how you have written it?
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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All programs start as soon as you execute their exe files. Your question makes no sense.
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Did you by accident write a windows service? If yes, delete the source-code; you shouldn't be writing those.
Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
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is it possible to create a class that schedules a program to start and stops at specific times of the day, say it run from 00;00 to 23;59 every day
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Within your app, yes - but it will only work if your app is running at the time.
If it isn't, you can't use a class to do that, because all class instances are destroyed at the end of the app.
You can however run an app at a specific time each day: Task Scheduler (Windows)[^] will let you do that pretty easily.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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thanx, for example its a file checker, with start and stop function, at a specific time i would like it to stop and restart agin, while the app is still on. is there code i can view to help me with this
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Just create a background thread - see the BackgroundWorker class[^] for a simple method and an example.
Then in the thread, use DateTime.Now to get the current date and time, and if you are outside the "running" time, call Thread.Sleep(60000) to wait for one minute before trying again.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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I'd tend to go with an Rx solution where I calculated the time difference between now and the end time, then use that as the parameter in an Onservable.Timer[^]. Then again, I have obviously have masochistic tendencies 
This space for rent
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Why don't you do this via a Windows service? A Windows service will run even if a user isn't logged on the machine. You can use a config file to control processing, or if it's a file checker, it will watch the specified file for changes (or folder for new files), and react accordingly.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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{
public partial class frmNotifier : Form
{
private StringBuilder m_Sb;
private bool m_bDirty;
private System.IO.FileSystemWatcher m_Watcher;
private bool m_bIsWatching;
public frmNotifier()
{
InitializeComponent();
m_Sb = new StringBuilder();
m_bDirty = false;
m_bIsWatching = false;
}
private void btnWatchFile_Click(object sender, EventArgs e)
{
if (m_bIsWatching)
{
m_bIsWatching = false;
m_Watcher.EnableRaisingEvents = false;
m_Watcher.Dispose();
btnWatchFile.BackColor = Color.LightSkyBlue;
btnWatchFile.Text = "Start Watching";
}
else
{
m_bIsWatching = true;
btnWatchFile.BackColor = Color.Red;
btnWatchFile.Text = "Stop Watching";
m_Watcher = new System.IO.FileSystemWatcher();
if (rdbDir.Checked)
{
m_Watcher.Filter = "*.*";
m_Watcher.Path = txtFile.Text + "\\";
}
else
{
m_Watcher.Filter = txtFile.Text.Substring(txtFile.Text.LastIndexOf('\\') + 1);
m_Watcher.Path = txtFile.Text.Substring(0, txtFile.Text.Length - m_Watcher.Filter.Length);
}
if (chkSubFolder.Checked)
{
m_Watcher.IncludeSubdirectories = true;
}
m_Watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
| NotifyFilters.FileName | NotifyFilters.DirectoryName;
m_Watcher.Changed += new FileSystemEventHandler(OnChanged);
m_Watcher.Created += new FileSystemEventHandler(OnChanged);
m_Watcher.Deleted += new FileSystemEventHandler(OnChanged);
m_Watcher.Renamed += new RenamedEventHandler(OnRenamed);
m_Watcher.EnableRaisingEvents = true;
}
}
private void OnChanged(object sender, FileSystemEventArgs e)
{
if (!m_bDirty)
{
m_Sb.Remove(0, m_Sb.Length);
m_Sb.Append(e.FullPath);
m_Sb.Append(" ");
m_Sb.Append(e.ChangeType.ToString());
m_Sb.Append(" ");
m_Sb.Append(DateTime.Now.ToString());
m_bDirty = true;
}
}
private void OnRenamed(object sender, RenamedEventArgs e)
{
if (!m_bDirty)
{
m_Sb.Remove(0, m_Sb.Length);
m_Sb.Append(e.OldFullPath);
m_Sb.Append(" ");
m_Sb.Append(e.ChangeType.ToString());
m_Sb.Append(" ");
m_Sb.Append("to ");
m_Sb.Append(e.Name);
m_Sb.Append(" ");
m_Sb.Append(DateTime.Now.ToString());
m_bDirty = true;
if (rdbFile.Checked)
{
m_Watcher.Filter = e.Name;
m_Watcher.Path = e.FullPath.Substring(0, e.FullPath.Length - m_Watcher.Filter.Length);
}
}
}
private void tmrEditNotify_Tick(object sender, EventArgs e)
{
if (m_bDirty)
{
lstNotification.BeginUpdate();
lstNotification.Items.Add(m_Sb.ToString());
lstNotification.EndUpdate();
m_bDirty = false;
}
}
private void btnBrowseFile_Click(object sender, EventArgs e)
{
if (rdbDir.Checked)
{
DialogResult resDialog = dlgOpenDir.ShowDialog();
if (resDialog.ToString() == "OK")
{
txtFile.Text = dlgOpenDir.SelectedPath;
}
}
else
{
DialogResult resDialog = dlgOpenFile.ShowDialog();
if (resDialog.ToString() == "OK")
{
txtFile.Text = dlgOpenFile.FileName;
}
}
}
private void btnLog_Click(object sender, EventArgs e)
{
DialogResult resDialog = dlgSaveFile.ShowDialog();
if (resDialog.ToString() == "OK")
{
FileInfo fi = new FileInfo(dlgSaveFile.FileName);
StreamWriter sw = fi.CreateText();
foreach (string sItem in lstNotification.Items)
{
sw.WriteLine(sItem);
}
sw.Close();
}
}
private void rdbFile_CheckedChanged(object sender, EventArgs e)
{
if (rdbFile.Checked == true)
{
chkSubFolder.Enabled = false;
chkSubFolder.Checked = false;
}
}
private void rdbDir_CheckedChanged(object sender, EventArgs e)
{
if (rdbDir.Checked == true)
{
chkSubFolder.Enabled = true;
}
}
private void frmNotifier_Load(object sender, EventArgs e)
{
}
}
}
thats a full code of filemonitor i found online.
am trying to edit it in such a way that when i click the exe file it already starts checking the files, without having to click the start button and stop button.
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Like I said, write it as a windows service, and it can just sit there watching the file/folder without any user interaction at all.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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