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Yes. Refreshguid can be used in Question or Form. Can you help submit BZ to record the issue in VFR spec?
<firstname.lastname@example.org> 代表 Tim Crawford
发送时间: 2020年11月5日 0:25
收件人: gaoliming <email@example.com>; firstname.lastname@example.org
主题: Re: [edk2-discuss] 回复: [edk2-discuss] Refresh currently displayed
BootManager elements are generated dynamically. There are no questions or
actions to attach a refresh interval or refreshguid to. I don't believe a refresh
interval would produce the behavior I want; that is, to update *as soon as*
an event (plugging/pulling a USB drive) happens.
But after looking at ANTLR syntax
(BaseTools/Source/C/VfrCompile/VfrSyntax.g) I found that refreshguid can be
used at the form level. This was added some time ago , but is not in the
VFR specification . Using this with CreateEventEx(), with refreshguid and
EventGroup being the same GUID, produces the behavior I want.