Software programming is an art form. 

I keep exploring  this fascinating field as part of my daily working life as well as for leisure. Along the way, I've felt the need & have seen many who could use assistance in cutting short the time taken to learn certain topics. 

Through this section, I hope to provide sample applications illustrating key concepts. Please feel free to use the code presented here for your creations.

I wish you success ! Oh ! Please do let me know of improvements you think of.

 

(Download Zipped Source Code)

An application illustrating key (pun unintended) registry functions - RegCreateKeyEx, RegSetValueEx, RegCloseKey, RegOpenKeyEx, RegQueryValueEx, RegEnumKeyEx, RegDeleteKey. 

It simply creates & sets a new registry entry, opens & queries the value back & then deletes it to clean up. Of particular interest here is the recursive deletion function that navigates hierarchies and removes any & all registry entries under the key specified.

Need for the above ? Well, Win 98 allows deletion of subkeys with a simple RegDeleteKey on the parent key whereas Win NT & 2000 do not.

Hopefully, this should get you on the road to exploring the other registry functions. 

(Download Zipped Source Code)

This is a simple MFC SDI app that creates & displays two system tray icons, illustrates how to programmatically differentiate between them & also how to invoke a pop-up menu on right clicking an icon.

Besides, it elucidates useful tricks like :

* How to ensure an app runs on Windows 95 & above.

* Using a Named Mutex to ensure a single instance of the application is running.

* Using CreateProcess to spawn Notepad with a text file.


Credits -
Thanks to Alexander Federov ! I learnt about system tray icons from his AlexF dialer project on Sourceforge.net of which I am (i think) a member. < yea, i've still gotta optimize the dialers data rate counter :-( >
Must also mention Richard from WebPercept.com, I made the initial SystemTrayIcon app to help him understand tray icons & then polished it for my site.

Coming soon - windows sockets.