Taskbar Button Flash and Highlighted State

[msnews.microsoft.com]

Windows guidlines ...

Rather than flashing the button continually, you can flash the window button
only a limited number of times (for example, three), then leave the button
in the highlighted state, as shown in Figure 11.2. This lets users know
there is still a pending message.
Anybody know how to leave the "button in the highlighted state"?

Flashing is simple ... just simply call the Flash() method from a form. But
highlighted state?

 

[msnews.microsoft.com]

Semantics of Flash also seem to be off ... I would have thought that when
you said Flash() it would go on, but instead it starts off.

For example, the method call
this.Flash(10000, FlashWindow.TaskBar, false);

waits 10 seconds before highlighting the button! I would have thought that
it would highlight the ticker button immed.

(And if it did, well that would answer my first question, since I could just
flash it with a REALLY high number, but alas it doesn't.)

(Oh, for anyone wondering, Flash(0, ...) flashes at the system default
frequency.