Chapter 23

Question 1

What hit test do

Answer 1

It tells in which area mouse located

Question 2

Does in multi touch every finger has a different device ID

Answer 2

Yes

Question 3

Does a device can have multiple device Ids

Answer 3

Yes

Question 4

What are manipulation events in WPF

Answer 4

High level events (e.g. zoom)

Question 5

What are manipulation delta events in WPF

Answer 5

Rotate, Scale, Translate

Question 6

Does expansion and scaling same

Answer 6

Yes

Question 7

Does matrix can represent translate, rotate and scale

Answer 7

Yes

Question 8

What is inertia

Answer 8

Its a concept of flick. Its example is children’s creative flip book of page turn around

Question 9

What is the series of execution of events in inertia

Answer 9

Starting event, started event, delta event and complete event

Question 10

Which gives inertia effect

Answer 10

De acceleration

Question 11

What is ManipulationBoundaryFeedback event

Answer 11

It tells us when thing going out of boundary of manipulation boundary

Question 12

What is panning behavior

Answer 12

When hold some thing from mouse and do scroll. The selected item keep intact with mouse and window scroll. It is called panning behavior.