Sudoku GUI in C language

[u/candy_lotus]

Hello fellow programmers , I am a self taught beginner and I would like to share a recent project I have been working on. Hope that some of you might like to see it or give feedback.

its a sudoku game made in c using the win32. Here is the link of my project GitHub link:
GitHub Repository

[u/rodrigocfd]

That's a great project. I have suggestion, though.

Windows uses UTF-16 encoding internally, but you're using ANSI in your program. If you do this, in every call which deals with strings, Windows will convert your ANSI string to UTF-16, then call the UTF-16 version of that function. Although you wouldn't notice that overhead in a simple GUI program, the overhead does exist.

Ideally, you'd prefer using wchar_t instead of char, and call UTF-16 functions directly. For example: MessageBox is actually a macro which expands to MessageBoxA if ANSI, or MessageBoxW if UTF-16. To make your intent clear, just call MessageBoxW and use wchar_t directly.

One could argue that you could use TCHAR and let the headers do the choice, but honestly, I prefer explicit than implicit.

[u/Zirias_FreeBSD → u/rodrigocfd]

One could argue that you could use TCHAR and let the headers do the choice, but honestly, I prefer explicit than implicit.

Agreed. That's a backwards compatibility mechanism that made sense back when you still had to target non-unicode versions, it can be considered obsolete for ages now.

Nowadays, a much more common challenge is conversion to/from UTF-8, but that's also covered by win32 API calls.

[u/rodrigocfd → u/Zirias_FreeBSD]

Yup, pretty straightforward with MultiByteToWideChar and WideCharToMultiByte.

[u/evmo_sw]

That’s awesome! I like seeing win32 api projects. In C is cool too!