<AWT Dev> [9] Review request for JDK-8017472 [macosx] Transparency demo is not correctly dragged on the second monitor

Alexander Zvegintsev alexander.zvegintsev at oracle.com
Mon Feb 10 00:26:32 PST 2014

Hello AWT team,

please review fix

Another issue was closed as a duplicate of this one, but it has a better 
self-explaining title:
MouseEvent has wrong coordinates when using multiple monitors

 From mainScreen documentation[1]:
> The main screen is not necessarily the same screen that contains the 
> menu bar or has its origin at (0, 0).
> The main screen refers to the screen containing the window that is 
> currently receiving keyboard events.

absY should be calculated relative to a primary screen

According to documentation[2] primary screen can be obtained by call 
[[NSScreen screens] objectAtIndex:0]:
The screen at index 0 in the returned array corresponds to the primary 
screen of the user’s system.



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