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CIRC Sample: ActiveX Control 

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The CIRC sample is a simple example of an ActiveX Control.

CIRC illustrates the following:

  • Changing the painting behavior of an ActiveX control

  • Adding stock properties

  • Adding custom properties

  • Responding to mouse events

  • Adding custom events

  • Using text and fonts

  • Implementing ActiveX control property pages

  • Using simple data binding for control properties

Security noteSecurity Note

This sample code is provided to illustrate a concept and should not be used in applications or Web sites, as it may not illustrate the safest coding practices. Microsoft assumes no liability for incidental or consequential damages should the sample code be used for purposes other than as intended.

Building and Running the Sample

To build and run the CIRC sample

  1. Open the solution Circ.sln.

  2. On the Build menu, click Build.

See Controls Samples for details on adding a control to the Toolbox, manually registering a control, and using the ActiveX Control Test Container.


The CIRC sample demonstrates the following keywords:

AfxGetInstanceHandle; CDC::Ellipse; CDC::SelectObject; CDC::SelectStockObject; CDialog::DoModal; CString::AllocSysString; CString::GetLength; Ellipse; ExtTextOut; FillRect; GetClientRect; GetDC; GetVersion; MAKELONG; RGB; ReleaseDC; SelectObject; SetBkMode; SetTextAlign; SetTextColor


Some of the samples, such as this one, have not been modified to reflect the changes in the Visual C++ wizards, libraries, and compiler, but still demonstrate how to complete your desired task.

See Also

Other Resources

MFC Samples