CIRC Sample: ActiveX Control

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 intended to illustrate a concept, and it shows only the code that is relevant to that concept. It may not meet the security requirements for a specific environment, and it should not be used exactly as shown. We recommend that you add security and error-handling code to make your projects more secure and robust. Microsoft provides this sample code "AS IS" with no warranties.

To get samples and instructions for installing them:

To access samples from Visual Studio

  • On the Help menu, click Samples.

    By default, these samples are installed in drive:\Program Files\Microsoft Visual Studio 10.0\Samples\.

  • For the most recent version of this sample and a list of other samples, see Visual Studio Samples on the MSDN Web site.

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.

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