Question

I want to open a text file into some text editor say notepad programmatically in c/c++.

Also i want to see real time updation of text into that text file while opening in a editor.

Please suggest.

Answer 1

Most editors accepts the path of the file-to-be-opened as 1st argument. E.g.

notepad.exe c:/foo.txt

Just execute it as a shell/runtime command in your program.

Answer 2

If you re doing something as simple as monitoring a log file, you want a unix program called "tail", or its Windows equivalent.

It will give you a simple Notepad-like Window which displays the contents of a log file in (more or less) real time.

Having the editor (notepad, tail, whatever) continually monitor the file for changes isn t your job as the C++ developer, it s up to the program.

Answer 3

To get the file to open in the default application specified, try this (C#):

System.Diagnostics.Process.Start("text.txt");

To specify an application, try this:

System.Diagnostics.Process.Start( "notepad.exe", "text.txt");

I m not aware of any way to handle real time updation of the file in the editor however.

Answer 4

After you have it running, see above. you can possibly keep the file updated using SendMessage from the Windows API and sending Ctrl+S(save) to the notepad window.

Answer 5

To see real time update in your editor window try to find editor s window handle (you may use EnumWindows() function). Insert text in the editor s textfield or reread it from the file and call RedrawWindow() after that. However calling it after each letter could give some nasty flickering if the text come from a program.

友情链接