ButtonBase Behaviors
Other than the Flyout property, the Button class exposes no additional APIs on top of what it inherits from ButtonBase. In addition to its Click event, ButtonBase exposes IsPointerOver and IsPressed Boolean properties. IsPressed covers keyboard input as well as pointer input, such as holding down the spacebar.
The most interesting feature of ButtonBase, however, is its ClickMode property. This can be set to a value of a ClickMode enumeration to control exactly when the Click event gets raised. Its values are Release (the default), Press, and Hover. Although changing the ClickMode setting on standard buttons would likely confuse users, this capability can be handy for buttons that have been restyled to look like something ...
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