Page 214 - DCAP408_WEB_PROGRAMMING

Windows Programming Dr. Anil Sharma, Lovely Professional University

Notes Unit 13: Windows GDI

CONTENTS
Objectives
Introduction

13.1 Windows GDI
13.1.1 Displaying Text
13.1.2 Displaying Pixels

13.1.3 Drawing Lines
13.1.4 Drawing Filled Shapes
13.1.5 Pens and Brushes
13.1.6 Window Size
13.1.7 Forcing a Redraw

13.2 Summary
13.3 Keywords
13.4 Review Questions

13.5 Further Readings
Objectives

After studying this unit, you will be able to:
 Explain Windows GDI
 Discuss the Windows GDI capabilities

Introduction

The Microsoft Windows graphics device interface (GDI) enables applications to use graphics and
formatted text on both the video display and the printer. Windows-based applications do not
access the graphics hardware directly. Instead, GDI interacts with device drivers on behalf of
applications.

 Where applicable: GDI can be used in all Windows-based applications.
 Developer audience: This API is designed for use by C/C++ programmers. Familiarity
with the Windows graphical user interface and message-driven architecture is required.

 Run-time requirements: For information, on which operating systems are required to use
a particular function.

13.1 Windows GDI

GDI stands for Graphics Device Interface. It provides many functions for displaying graphics in
your Windows application.

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