VC++ Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

MFC (184)
ATL (26)
COM DCOM (53)
Win32API (35)

ActiveX (202)
VC++ AllOther (153)

VC++ Interview Questions

Questions Answers Views Company eMail

Explain transaction atomicity?

1 4550

Explain object pooling?

HCL,

1 6076

Explain JIT activation?

1 6173

Which namespace do the classes, allowing you to support COM functionality, are located?

2531

How do you make a NET component talk to a COM component?

TCS,

3 7832

Explain queued components.

2 5655

How does a DCOM component know where to instantiate itself?

1 4835

What kind of components can be used as DCOM servers?

1 6041

What are the different compatibility types when we create a COM component?

TCS,

1 6201

Which tool is used to configure the port range and protocols for DCOM communications?

1 7370

What MFC base classes provide support for ActiveX controls?

Wipro,

2 10996

What is subclassing?

2 19404

What four types of properties are supported by an ActiveX control?

1 5876

What interface must be supported by an ActiveX control?

2 7613

What is the difference between OnInitialUpdate and OnUpdate?

5 20117

Un-Answered Questions { VC++ }

Is microsoft visual c++ important?

1016

What is activex used for?

729

What is the use of message map? Advantages of a message map.

948

Are there any difference between activex exe and activex dll?

667

Explain some of commonly used methods provided by iunknown.

858

What is difference between c++ and visual c++?

957

Explain pointer to the constant and constant pointer? Explain difference between them.

1059

How to pull excel table to activex in labview?

724

What is mscomctl ocx used for?

700

How do I uninstall visual c++?

943

How do I open an ocx file?

710

what is the stack size in win 32 program

1359

What is activex on my computer?

676

What is ocx file in vb6?

682

How to handle dynamic menus in mfc? What happens when client calls cocreateinstance?

1175

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