keyIsPressed has wrong value on fist try.

[jpgargoyle]

Nature of issue?

• Found a bug

Details about the bug:

I have a sketch where I do an action whenever I click a mouse button. I also check to see if there is a key pressed, to perform the opposite action.
The problem is that, the fist time I click the mouse, the keyIsPressed var always has false, even though I am pressing a key. All the other tries during that run work well, except for the first one.

• Web browser and version: Google Chrome Version 71.0.3578.98 (Official Build) (64-bit)
• Operating System: Windows 7 Enterprise, Service Pack 1
• Steps to reproduce this bug:
  Execute the following code. If the first time you click the left mouse button while pressing a key, you will see that the keyIsPressed variable contains false, when it should have a value of true.

function setup() {
  createCanvas(250, 250);
  myText = "";
}

function mousePressed() {
  print(keyIsPressed);
  if (keyIsPressed)
  	myText = "a key is pressed!"
  else
    myText = "NO key pressed."
  redraw();
}

function draw() {
  noLoop();
  background(128);
  
  text(myText, 10, 30);
}

[catarak]

@jpgargoyle thanks for reporting! i'm assuming you're running this in the web editor. i think this is related to #654. the first time you click the mouse, the iframe is getting focus, so it makes sense that keyIsPressed would be false, because that event wasn't executed in the context of the iframe.

[jpgargoyle]

Thank you @catarak .

I understood the explanation.
The this.focus(); at the beginning of the sketch solved the problem for me.
So, I am going to close this issue.

Thanks a lot.