Chapter 22 Flashcards

1
Q

What is attach event

A

The concept of an attached event enables you to add a handler for a particular event to an arbitrary element rather than to an element that actually defines or inherits the event.

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2
Q

What are keyboard events

A

Key down
Key up
Preview Key down
Preview Key up

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3
Q

What is keyboard focus

A

It guides which control on UI will get keyboard message

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4
Q

What are mouse events

A
  • Mouse enter
  • Mouse leave
  • Preview mouse enter
  • Preview mouse leave
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5
Q

What is general purpose of Mouse enter and

Mouse leave events

A

Hover effect

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6
Q

What is event trigger

A

The event trigger receives events from the Event System and calls registered functions for each event.

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7
Q

What is null brush and transparent brush

A

If mouse clicked and null brush is used then background element will be hit and if transparent brush is used which is non-null brush then foreground element will be hit.

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8
Q

What getposition function do in mouse

A

It gives mouse position.

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9
Q

What is delta property in mouse wheel

A

It tells how much mouse to be moved

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10
Q

What clickcount do

A

It detects the time between 2 clicks and helps to identify double click.

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11
Q

What is mouse capture

A

It uses in drap and drop and it says that when a particular button or any element is captured by mouse then all mouse events will be sent to that element.

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12
Q

What is reverse of mouse capture

A

mouse release

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13
Q

Does some events of stylus and touch screen converts to mouse events

A

Yes

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14
Q

Does note book allow finger touches maximum

A

Yes

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15
Q

What are 2 levels in touch

A
  1. High level

2. Lower level

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16
Q

What are multilevel touch and single level touch

A

Devices that support multiple fingers or one finger touch

17
Q

Does silverlight support touch events

A

No