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Platform Invoke Sample 

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This sample demonstrates how to call platform invokes (exported DLL functions) from C#. See Interoperability (C# Programming Guide) for more information.

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 open the sample file in Solution Explorer

  1. Click Download Sample.

    The File Download message box appears.

  2. Click Open, and on the left column of the zip folder window, click Extract all files.

    The Extraction Wizard opens.

  3. Click Next. You can change the directory that the files will be extracted to, and then click Next again.

    Make sure that the Show extracted files check box is selected, and click Finish.

  4. Double-click the sample's .sln file.

    The sample solution is displayed in Solution Explorer. You might get a security warning that says the solution location is not trusted. Click OK to continue.

To build and run the Platform Invoke samples within Visual Studio

  1. In Solution Explorer, right-click the PinvokeTest project and click Set as StartUp Project.

  2. On the Debug menu, click Start Without Debugging.

  3. Repeat the preceding steps for Marshal and Pinvoke.

To build and run the Platform Invoke samples from the Command Line

  1. Use the Change Directory command to change to the PinvokeTest directory.

  2. Type the following:

    csc PinvokeTest.cs
    PinvokeTest
    
  3. Use the Change Directory command to change to the Marshal directory.

  4. Type the following:

    csc Marshal.cs
    Marshal
    
  5. Use the Change Directory command to change to the Pinvoke directory.

  6. Type the following:

    csc logfont.cs pinvoke.cs
    pinvoke
    

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