macOS Detecting keyboard layout in Mac OS X 10.4

[evaluador]

Hello,

I'am trying to get the current keyboard layout in a Mac OS X 10.4 app. I need to detect when the current layout has changed (the user clicked the flag button).

I have followed the code from https://nanohub.org/infrastructure/rappture-runtime/browser/trunk/tk8.4.19/macosx/tkMacOSXKeyEvent.c which seems ok for me and works perfectly in 10.5 & 10.6, but in 10.4, it only gets the system language and no change is detected.

What's the matter with 10.4?

Thank you in advance!

 

[kainjow]

I believe on 10.5 and 10.6 you should be using Text Input Source Services, which is a newer API. If you look at the bottom of that page there are notifications that get posted when the layout changes.

I don't have an answer for why it's not working on 10.4, but why do you want/need 10.4 compatibility?

 

[evaluador]

Too many iBooks still working with the old&good Tiger....

The code works perfectly in 10.5/10.6 using Text Input Services, however there are no TIS in 10.4....