[Wine] Problems with game keyboard input - "Janoschs Vorschule" from Terzio

[Sven Nielsen]

Hi,

I need help with a small kids game. The title is "Janoschs Vorschule"
from Terzio (German). 
It runs after applying several overrides with winetricks. 

But issue now is: At start of game, player must input its name. I can
input the name, BUT, some game routine seems to NOT recognize that i
pressed keys, so the "Next" button will not let me go on with the game. 

Someone got an idea how I might proceed from here to solve the issue?

Regards
Sven