Key Concepts

The Windows API is a set of functions and objects that allow you to interact with the Windows operating system. It's a foundational element for building applications.

• Windows API Framework: A set of fundamental APIs and components that underpin the Windows operating system.
• Functions & Objects: The API provides a vast library of functions and objects to manipulate the system.
• System Calls: These are how applications request services from the OS (e.g., creating a file, getting a window, writing to a screen).

Overview of the Overview Document

This document explores the core functions within the Windows API, providing high-level explanations for each.

The First Section - Core Functionality

This section covers the most essential APIs for initial understanding.

This section focuses on functions which are frequently accessed.

• `GetWindowText`: Retrieves the text in a window.
• `GetWindowTitle`: Gets the title of a window.
• `SetWindowText`: Sets the text in a window.
• `CreateWindow`: Creates a new window.
• `GetWindowSize`: Returns the size of a window.
• `GetWindowRect`: Returns the size of a window.