IVsExpansionManager Interface
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IVsExpansionManager Interface


Represents the expansion manager, which knows how to find and display lists of code snippets for a particular coding language.

Namespace:   Microsoft.VisualStudio.TextManager.Interop
Assembly:  Microsoft.VisualStudio.TextManager.Interop.8.0 (in Microsoft.VisualStudio.TextManager.Interop.8.0.dll)

public interface IVsExpansionManager

System_CAPS_pubmethodEnumerateExpansions(Guid, Int32, String[], Int32, Int32, Int32, IVsExpansionEnumeration)

Retrieves a list of code snippets for the specified coding language.

System_CAPS_pubmethodGetExpansionByShortcut(IVsExpansionClient, Guid, String, IVsTextView, TextSpan[], Int32, String, String)

Retrieves the title and path to a snippet given its shortcut name.


This API supports the product infrastructure and is not intended to be used directly from your code. Determines if a key has been bound to the "Invoke Snippet From Shortcut" command.

System_CAPS_pubmethodGetTokenPath(UInt32, String)

Returns the path to the specified location.

System_CAPS_pubmethodInvokeInsertionUI(IVsTextView, IVsExpansionClient, Guid, String[], Int32, Int32, String[], Int32, Int32, String, String)

Shows an IntelliSense list of code snippets that can be inserted into the source through the provided IVsExpansionClient object.

The expansion manager is a helper interface that provides access to information about code snippets. This interface can also present a list of snippets to be inserted at a particular place in a document.

Notes to Implementers:

This interface is implemented by Visual Studio.

Notes to Callers:

This interface is obtained by calling the GetExpansionManager method in the IVsTextManager2 interface.

This example shows how to retrieve the IVsExpansionManager interface given a service provider.

using System;
using System.Runtime.InteropServices;
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.TextManager.Interop;
using IOleServiceProvider = Microsoft.VisualStudio.OLE.Interop.IServiceProvider;

namespace MyPackage
    public class MyClass
        public object GetService(IOleServiceProvider serviceProvider,
                                 Guid serviceGuid,
                                 Guid interfaceGuid)
            IntPtr pUnknown = IntPtr.Zero;
            object unknown = null;
            int hr = serviceProvider.QueryService(ref serviceGuid,
                                    ref interfaceGuid,
                                    out pUnknown);
            if (ErrorHandler.Succeeded(hr))
                unknown = Marshal.GetObjectForIUnknown(pUnknown);
            return unknown;

        private IVsExpansionManager GetExpansionManager(IOleServiceProvider serviceProvider)
            IVsExpansionManager expansionManager = null;
            IVsTextManager textManager;
            textmanager = (IVsTextManager)this.GetService(serviceProvider,
            if (textManager != null)
                IVsTextManager2 textManager2 = (IVsTextManager2)textManager;
                if (textManager2 != null)
                    textManager2.GetExpansionManager(out expansionManager);
        return expansionManager;
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