ShowKeyboardArg size mismatch

[Martmists-GH]

It seems in some SDK version, the size of this struct (or the config) was changed, resulting in crashes when swkbd functions are used.

[MonsterDruide1]

As far as I know, this header has been successfully used within SMO (nnsdk v3.5.1), so it must be good enough on that game - which game/SDK version are you looking at?

[Martmists-GH]

I'm looking at Pokemon Legends Z-A, which should be nnsdk 19.3.11 I believe

[Fuzzy2319]

This is also the case in TOTK v1.2.1 which uses nnsdk v15.3.1, the size of KeyboardConfig was changed from 0x400 to 0x4d0 and you now need to align the work buffer with 0x1000 otherwise it will crash the game. Thanks to @Kirbymimi

[MonsterDruide1]

v7.3.2 already had it (SMO 1.3).
If you can, please check more games with versions between 3.5.1 (SMO 1.0) and 7.3.2 (SMO 1.3) to further narrow down which version introduced this change.
The easiest way to tell is whether a function called nn::swkbd::SetCustomizedDictionaries exists (_ZN2nn5swkbd25SetCustomizedDictionariesEPNS0_15ShowKeyboardArgERKNS0_23CustomizedDictionarySetE) - this seems to be directly related to the change in size.

[Fuzzy2319]

I just checked in v4.0.4 (mk8dx v3.0.1) and nn::swkbd::SetCustomizedDictionaries doesn't exist in this version but unfortunately I don't have any games that use nnsdk v5.x.x nor v6.x.x so I can't help further.

[Martmists-GH]

KeyboardConfig is 0x518 in 19.3.11, so we'd need to track down that change between then and 15.3.1 as well.

[Fuzzy2319]

It's still 0x4d0 in v16.2.0 (super mario bros wonder v1.0.1)