I want to capture video tutorials, I already did, but I still miss a tool that automatically displays the pressed keys and mouse buttons.

Question 1:
Is there already an inexpensive tool somewhere in the net?
(the newest version of Camtasia is quite expensive)

Question 2:
Is there a way to program such a tool without much effort?
(in any language)

Question 3:
Is it possible to program such a tool with Lite-C without knowing much about the window API and such?

q3: i guess it's possible that you could make a small screen that shows every key press and always stays on top in lite-c.

edit: well, took a quick look, you need some winapi, probably:
SetWindowsHookEx with WH_KEYBOARD and keyboardProc Callback.

I tried the digital.c in the samples folder, and it keeps showing while I was in in a different program, but it didn't receive a key, while it updated the time.

that's why you need to install a keyboard hook using winapi - to be able catch keys while your window is not on "focus" -

Thanks for your fast and informative replies!
I have to go to bed now, because of my work tomorrow.
See ya.

further, a systemwide-hook MAY not be possible without a dll, thus it may not be possible with lite-c.

tried it, it's possible if you do not mind going a little low-level.

I created a tool for that:

download:
http://dl.dropbox.com/u/4979264/kbhook.rar

Automatically changes size

You can drag it to anywhere in the screen, always stays on top.

Right click brings up the settings, so far window alpha, background and foreground colors are changeable. If you open settings at far right or far bottom side of the screen you would not be able to click on the exit or save button, in this case press esc it saves settings.

To close the app either right click on the app window and click exit in settings menu, or close it from the taskbar.

open for suggestions.

Wow, didn't expect that!
It says " can't hook the keyboard, terminating."

you may need to run it as administrator and make sure your antivirus does not think it's a keylogger.

I have Windows XP and my Antivirus would throw a message as well.