mql4 pressing two keyboard buttons at the same time

[traderbigbear92]

Hi all I want to make a custom indicator which detects the pressing down of multiple keys. I have looked around and think you need to download user32.dll. But I haven't found anything which was particularly helpful in how to use it :S.

I would need some code like:

if(CTRL + TAB) {

Alert("CTRL + TAB have been pressed");

}

Many thanks 

[William Roeder]

We just went over this five days ago. If you had used this you would have found this.