Windows8 TabTip.exe -- how to open it correctly?

[the_]

Hi all,

As one of my programs is running on MS Surface with Win8 (or Win8.1, not sure :) ), I need to open the virtual keyboard when the user clicks into a text input field.

My attempt with QProcess::start() seems to work pretty good, but on some (at least one out of about 200) test devices I get an error message:

Thats the way I execute the tabtip.exe inside an eventFilter

//keyboard is a QProcess *;

keyboard->start("explorer.exe",QStringList() << "C:\\Program Files\\Common Files\\microsoft shared\\ink\\Tabtip.exe");

Any ideas what happened there or what a referral means in this case and how to sove this?

Thanks a lot ;)

---

EDIT:

What I forgot to add: If the user uses any other (Microsoft) program, that opens the virtual keyboard, the error message does NOT pop up

[jsulm]

@the_ I don't know how to open the virtual keyboard on Windows, but the way you do it is for sure not correct.
You should use Windows API for that instead of starting a process.

[the_]

@jsulm Thanks I will look for an api to do so. Will keep you up to date

[the_]

Searching on StackOverlow brings me to this answer:
http://stackoverflow.com/a/40921638

The C code can be used with LIBS += -lole32 in the pro file

It works on my test device, but i am not sure if it also does with the others... so still experimental...