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ATLSafeArray Sample: Demonstrates CComSafeArray and Passing SAFEARRAYs to Script

Visual Studio 2008

The ATLSafeArray sample shows how to create and maintain SAFEARRAYs using CComSafeArray. It also shows how to pass SAFEARRAYs from a component to script: when the user clicks the buttons on the HTML page, various methods in the control are executed.

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.

To get samples and instructions for installing them:

  • On the Visual Studio Help menu, click Samples.

    For more information, see Visual Studio Samples.

  • The most recent version and complete list of samples is available online from the Visual Studio 2008 Samples page.

  • You can also locate samples on your computer's hard disk. By default, samples and a Readme file are copied into a folder under \Program Files\Visual Studio 9.0\Samples\. For Express editions of Visual Studio, all samples are located online.

To build and run this sample

  1. Open the solution file ATLSafeArray.sln.

  2. From the Build menu, click Build Solution.

  3. When the build finishes, open ATLSafeArray.htm in your Web browser.

  4. Fill in the text box and click the appropriate buttons to Add, Change, or Remove an item from the list box.

This sample demonstrates the following classes:

CComSafeArray; CComVariant

This sample demonstrates the following keywords:

CComSafeArray::Add; CComSafeArray::SetAt; CComSafeArray::operator=; CComSafeArray::operator[]; CComSafeArray::GetCount; CComSafeArray::Resize; CComVariant::Detach

Other Resources