How do I increase the value of a progress bar on keypress?

I've been looking around for the answer and I just can't seem to find it.

Make a rectangular sprite with a width of your "progress" (ie. 1-100%, use 100 pixels width), now simply change the width +1 or -1 each time the key is pressed.. voila magic

Make a rectangular sprite with a width of your "progress" (ie. 1-100%, use 100 pixels width), now simply change the width +1 or -1 each time the key is pressed.. voila magic

Thanks!

I forgot to add.. this probably won't matter since your updating it by setting it width with an event of keypress, but I will add if you update it via a variable at anytime (like say for a healthbar type use where your setting the width from a heath variable) you will need to make sure to use a set width to (variable) action or it won't visually update.