Click here to Skip to main content
12,292,953 members (67,515 online)
Click here to Skip to main content
Add your own
alternative version

Stats

198.9K views
3.3K downloads
81 bookmarked
Posted

Magnifying Glass

, 25 Dec 2001 CPOL
Rate this:
Please Sign up or sign in to vote.
A magnifying glass activated from the system tray.

Sample Image 1

Sample Image 2 Sample Image 3

Introduction

Magnifying Glass is an application that adds an icon to the system tray. The Magnification is activated by clicking on this icon. When the program is run, it shows a magnifying glass in any place on the screen when left mouse button is pressed.

Topics covered in this program:

  • Using mutex in single-instance application.
  • Writing application that adds icon to system tray.
  • Using invisible TOPMOST window to capture mouse input on the whole screen.
  • Using message crackers from WindowsX.h.
  • Windows graphics (GDI).

Acknowledgements:

History

26 Dec 2001:

  1. Redrawing problem in Windows 95, 98, reported by PJ Arends.
  2. Compilation problem when SDK is not installed.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author


You may also be interested in...

Comments and Discussions


| Advertise | Privacy | Terms of Use | Mobile
Web02 | 2.8.160518.1 | Last Updated 26 Dec 2001
Article Copyright 2001 by 5678901234
Everything else Copyright © CodeProject, 1999-2016
Layout: fixed | fluid