# Question about cross platform code **URL:** \ **Category:** Ignition\ **Created:** [May 2, 2013, 3:58pm UTC](https://forum.inductiveautomation.com/t/question-about-cross-platform-code/6371 "2013-05-02T15:58:33Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![jeffkrol](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jeffkrol/32/3339_2.png) [@jeffkrol](https://forum.inductiveautomation.com/u/jeffkrol)\ **Post date:** [May 2, 2013, 3:58pm UTC](https://forum.inductiveautomation.com/t/question-about-cross-platform-code/6371/1 "2013-05-02T15:58:33Z")
Hello, I'm new to using Ignition and I have been reading these forums to address specific questions I've been having. I came across something I wasn't sure about in this post: [http://www.inductiveautomation.com/forum/viewtopic.php?f=70&t=9761&p=34091](http://www.inductiveautomation.com/forum/viewtopic.php?f=70&t=9761&p=34091) Namely, I'm not sure about this line: > [@](#): > > 2. In both the mousePressed and mouseReleased events of the label (required so it will run cross-platform), put the following code: Can anyone explain why you have to use two different events to make your project be cross-platform? Also, what platforms are we talking about specifically? Linux, OS X and Windows? Is there a guideline somewhere out there that gives rules to follow regarding cross-compatibility? Thanks. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [May 2, 2013, 4:04pm UTC](https://forum.inductiveautomation.com/t/question-about-cross-platform-code/6371/2 "2013-05-02T16:04:17Z")
There’s not too many places where you need to be concerned about this, but as it happens on Windows ‘mouseClicked’ events are generated on the button press, whereas on OS X they are generated on the release. That post is somewhat inaccurate it would seem.