Rif.: what is MOUSE_WHEEL_PAGE_{dir}?

[ElectroLund]

What are these event specifiers:

MOUSE_WHEEL_PAGE_DOWN

MOUSE_WHEEL_PAGE_UP

I can't find anything in the help specifically about them.  Are these for fancy mice that have other buttons?

[RobertoBozzolo · Accepted solution]

I haven't tried this, but I have found this page from the online help that mentions those as content of eventData1 field in a EVENT_MOUSE_WHEEL_SCROLL event. I suppose receiving them depends on mouse settings, specifically to the option to scroll an entire page with the wheel instead of a specific number of lines. See this Microsoft page and your specific mouse settings.

[ElectroLund]

That was my assumption too.  I did some more testing and discovered that it's actually pretty straight forward.  In Windows XP, with a simple 2-button mouse with wheel and default WinXP driver, simply change the scroll type from line at a time to screen at a time.  Then that event triggers.