3D Thermometer Control

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• Download app - 126 Kb

Introduction

Drop-in MFC class to display temperature

Background

I had the need to display temperature readings from sensors. After taking apart a couple of very nice controls written by Davide Calabro I decided to try and show off.

Environment

This project was built and tested on Windows XP using Visual Studio 2003 SP1

Using the code

1. Add GDI+ support to your application: Starting with GDI+
2. Add TempCtrl.h and TempCtrl.cpp to your project.
3. Include TempCtrl.h in your main window/form view class.
4. Create a member variable of type CTempCtrl.
5. In the window initialization, subclass the thermometer:

   BOOL int CMainDlg::OnInitDialog()
   {
       // ...
       // Setup thermometer control
       m_TempCtrl.SubclassDlgItem(IDC_TEMP, this);
       // ...
   

Acknowledgments

Very special thanks to Davide Calabro for his knob and cylinder progress controls:

• CKnobControlST
• CCylinderProgressControlST

TODO

The control's size currently has to be within a certain range to be look right. In the future I will dynamically set line widths, font sizes, etc from the control size.

History

Jan 31st 2007 - Original Article.