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1. Attempt all questions. Marks are written adjacent to each

question.

2. Do not ask any questions about the contents of this

examination from anyone.

a. If you think that there is something wrong with any of the

questions, attempt it to the best of your understanding.

b. If you believe that some essential piece of information is

missing, make an appropriate assumption and use it to solve

the problem.

c. Write all steps, missing steps may lead to deduction of

marks.

3. You can consult your handouts while solving the paper.

**WARNING: Please note that Virtual University takes serious note of unfair

means. Anyone found involved in cheating will get an `F` grade in this course.

Question No. 1 Marks : 5

Explain briefly how can an application perform more than one task at a time in windows

environment?

Question No. 2 Marks : 10

(a) Write down the steps involved in registering a window class mentioning the function names

involved in each step. [5 Marks]

(b) Write down the steps involved in creating a window of a particular class (not a system

class) and dispatching messages from application message queue to window message queue

mentioning the function names involved in each step. The window has been already registered

by us. [5 Marks]

Question No. 3 Marks : 2

Message loop ends when the GetMessage() function removes the following message from the

message queue:

WM_SETFOCUS

WM_PAINT

WM_SYSCOMMAND

WM_QUIT

All of the given options

Question No. 4 Marks : 10

Write down the WinMain function of an application that creates a window of a pre-registered

(system) window class.

Question No. 5 Marks : 10

Write the WinMain and RegisterWindow functions of an application that creates a simple

overlapped window with white background.

Question No. 6 Marks : 2

Which one of the following messages has lowest priority?

WM_SYSCOMMAND

WM_PAINT

WM_QUIT

WM_COMMAND

All have same priority

Question No. 7 Marks : 5

Explain briefly how we can invoke WM_PAINT message when no region of the window has

become invalid.

Question No. 8 Marks : 2

We can display symbolic constants instead of numeric values using:

Structures

Enumeration

Unions

Typedef

Typecasting

Question No. 9 Marks : 2

We want to declare a variable in a function such that whenever the function is called, the

variable is not reinitialized. The storage class of the variable must be:

Auto

Static

Extern

All of the given options

None of the given options

Question No. 10 Marks : 2

Which one of the following is not a nonqueued message?

WM_ACTIVATE

WM_SETFOCUS

WM_SETCURSOR

WM_WINDOWPOSCHANGED

None of the given options

Class Responsibiliteis are defined by

1. its attributes only
2. its collaborations
3. its operations only
4. both its attributes and operations

The CRC model defines the relationships between the objects, but the object replationship model it can be specify the

1. Cardinality of the relationships
2. collaboration among the classes
3. direction of the relationships
4. number of relationships

Association relates to ________ relationship among objects of classes

1. Strong
2. Weaker
3. Normal
4. None of the given

Object-oriented domain analysis is concerned with the identification and specification of reusable capabilities withn the domain

1. True
2. False

Dynamic components of an OOA model are_____

1. Not reusable
2. sensitive to timing and event processing
3. stable throughout the operational life of an application
4. structural in nature

Which is/are the characterstics of an object?

1. Who I am
2. What I do
3. What I know
4. all of the given

Cohesion is an internal property of a module whereas coupling is its_____ with other modules

1. relationships
2. dependence
3. independence
4. none of the given

Static components of an OOA model are

1. focus on control
2. focus on data
3. sensitive to timing and event processing
4. structural in nature

Static components of an OOA model are________

1. focus on control
2. not reusable
3. sensitive to timing and event processing
4. structural in nature