Answer / sonali dongare

Subclassing is a technique that allows an application to
intercept and process messages sent or posted to a
particular window before the window has a chance to process
them. This is typically done by replacing the Window
Procedure for a window with application-defined window
procedure. I will devide this article into 3:

Subclassing in SDK programs,
Subclassing in MFC programs,
Reflected messages

Answer / somu

Subclassing is a standard technique in Windows programming
for customizing the behavior of a window. MFC wrap
subclassing into virtual function overriding.

how many types of messages are their

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Why Array Index starts from Zero

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Q1. A. What is unary operator? List out the different operators involved in the unary operator. B. What is an adjust field format flag? Q2. A. Distinguish between a # include and #define. B. Can a list of string be stored within a two dimensional array? Q3. A. Explain how a pointer to function can be declared in C++? B. List the merits and demerits of declaring a nested class in C++? Q4. A. What are the syntactic rules to be avoid ambiguity in multiple inheritence? B. Explain the operation of overloading of an assignment operator. Q5. A. Explain how the virtual base class is different from the conventional base classes of the opps. B. Explain how an exception handler is defined and invoked in a Program. Q6. A. What is a binary file? List the merits and demerits of the binary file usagein C++. B. Write short notes on Text Manipulation Routines. C. Write bites in Turbo c++ Header ("Include") Files.

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What types of threads are supported by MFC framework?

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What is the use of CObject::Dump function ?

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Why not virtual functions to handle messages?

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What is the command routing in MFC framework?

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Does the application have more than one object? If Yes, Briefly explain.

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what is the difference between SDI and MDI

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What is a message map, and what is the advantage of a message map over virtual functions?

1 Answers  

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What is CALLBACK? How it work? what is the advantage of CALLBACK, please explain with an example

6 Answers  

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