Desktop Application Desktop Application MCQ 2

Question 1

Which Windows API function is used to create a new process from a desktop application?

Accepted Answer

CreateProcess()

Answer

CreateProcess() is the Windows API function used to create a new process and its primary thread.

Question 2

In a desktop application, what is the purpose of a message loop (also called a message pump)?

Accepted Answer

To continuously retrieve and dispatch window messages from the queue

Answer

A message loop continuously retrieves messages from the thread's message queue and dispatches them to the appropriate window procedure.

Question 3

What does the term 'DPI awareness' mean in the context of desktop applications?

Accepted Answer

The application correctly scales its UI for high-resolution displays

Answer

DPI awareness means the application is designed to scale its UI elements correctly on high-DPI (dots per inch) displays to avoid blurry or oversized rendering.

Question 4

Which pattern is commonly used in desktop GUI frameworks to separate business logic from the user interface?

Accepted Answer

MVC (Model-View-Controller)

Answer

MVC separates an application into three components — Model (data/logic), View (UI), and Controller (input handling) — to keep concerns separate.

Question 5

In Windows desktop development, what is a 'handle' (HWND, HANDLE, etc.)?

Accepted Answer

An opaque reference used by the OS to identify a resource

Answer

A handle is an opaque, OS-managed reference (integer or pointer) that identifies a resource such as a window, file, or process.

Desktop Application Practice Test

Desktop Application Practice Test

Desktop Application Desktop Application MCQ 2