How to: Debug in Mixed Mode
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The following procedures describe how to debug both managed and native code, also known as mixed-mode debugging. There are two scenarios for doing so, depending on whether the DLL or the application is written in native code:
The calling application that calls your DLL is written in native code. In this case your DLL is managed, and both managed and native debuggers must be enabled to debug both. You can check this in the <Project> Property Pages dialog box. How you do this depends on whether you start debugging from the DLL project or the calling application project.
The calling application that calls your DLL is written in managed code and your DLL is written in native code.
Note
The dialog boxes and menu commands you see might differ from those described in Help depending on your active settings or edition. To change your settings, choose Import and Export Settings on the Tools menu. For more information, see Working with Settings.
To enable mixed-mode debugging
In Solution Explorer, select the project.
On the View menu, click Property Pages.
In the <Project> Property Pages dialog box, expand the Configuration Properties node, and then select Debugging.
Set Debugger Type to Mixed or Auto.