Icon.FromHandle: should I Dispose it, or call DestroyIcon?

Question

I use Win32 SHGetFileInfo to get a handle to the icon belonging to a certain file. There are a lot of descriptions how to do this, also on stackoverflow, for instance: Get i

Answer 1

Addition by OP. There is an error in this answer. Because of all the comments it became harsh to see the forest through the trees. Hence I decided to edit this answer. (Sorry if I offended someone)

The .net source code is online: http://referencesource.microsoft.com/#System.Drawing/commonui/System/Drawing/Icon.cs,81a28d20524554ae

Take a look at Icon.FromHandle:

public static Icon FromHandle(IntPtr handle)
{
    IntSecurity.ObjectFromWin32Handle.Demand();
    return new Icon(handle);
}
internal Icon(IntPtr handle) : this(handle, false)
{
}
internal Icon(IntPtr handle, bool takeOwnership)
{
    if (handle == IntPtr.Zero)
    {
        throw new ArgumentException(SR.GetString(SR.InvalidGDIHandle,
              (typeof(Icon)).Name));
    }
    this.handle = handle;
    this.ownHandle = takeOwnership;
}

Note that after Icon.FromHandle ownHandle is false.

Let's look at Dispose:

void Dispose(bool disposing)
{
    if (handle != IntPtr.Zero)
    {
        DestroyHandle();
    }
}

internal void DestroyHandle()
{
    if (ownHandle)
    {
        SafeNativeMethods.DestroyIcon(new HandleRef(this, handle));
        handle = IntPtr.Zero;
    }
}

Conclusion: After Icon.FromHandle, the field ownHandle is false, and thus Dispose / FromHandle won't call DestroyIcon

Therefore: if you create an Icon using Icon.FromHandle you'll have to Dispose() the Icon as well as call DestroyIcon, just as the remarks section says