<AWT Dev> [8] Review Request: JDK-8025585 Win: Popups in JFXPanel do not receive MouseWheel events

[Petr Pchelko]

Hello, AWT Team.

Please review the fix for the issue:
https://bugs.openjdk.java.net/browse/JDK-8025585
The fix is available at:
http://cr.openjdk.java.net/~pchelko/8025585/webrev.00/

The fix is needed for JFXPanel support. We need to redispatch MOUSEWHEEL messages to the window under mouse. In case of Popups in a JFXPanel the HWND belongs to a different tollkit, so we need to use ::SendMessage to redispatch the message.

With best regards. Petr.