Click on button of a Qt application

[Neto_new]

I'm trying to click on button of a Qt application with AutoIt controlClick function from my C# application. From what I've see on Ranorex spy tool, the caption is Iniciar gravação so I wrote this code:

 

bool ok = AU3.ControlClick("my window lol", "", "[TEXT:Iniciar gravação]", "left", 1) != 0;

But it doesn't click on anything. The my window lol does exist as the FindWindow() return the proper handler, so I guess the issue is in the [TEXT:Iniciar gravação] value.

 

Why it isn't working and how do I fix this?

 

Here's the class and dll I'm using:

https://dl.dropboxusercontent.com/u/10479535/AutoItX3.zip