BaseButton: Allow Alt + Down on menu buttons to open the menu#4807

Merged

chang47 merged 4 commits intomicrosoft:masterfrom

chang47:chiechan/fixAltDownForMenuButton

May 8, 2018

Commits on May 8, 2018

added fix for alt + down on menu for a menu button and not just split button
REDMOND\chiechan
committed
added change file; added comment
REDMOND\chiechan
committed
added default behavior
REDMOND\chiechan
committed
moved comment about keyboard to onClick event
REDMOND\chiechan
committed