/// <summary>
/// Create a new instance of the <see cref="ShellObject" /> class.
/// </summary>
/// <param name="pidl"><c>PIDL</c>。</param>
/// <param name="riid"><c>GUID</c>。</param>
/// <returns></returns>
private static ShellObject CreateShellObject(IntPtr pidl, ref Guid riid)
{
IShellItem2 shellItem2;
var code = ShellNativeMethods.SHCreateItemFromIDList(pidl, ref riid, out shellItem2);
if (HRESULT.Failed(code))
{
return(null);
}
return(ShellFactory.FromShellItem(new ShellItem(shellItem2)));
}
/// <summary>
/// Create new instance of the <see cref="ShellItem" /> class
/// to the specified <c>PIDL</c>.
/// </summary>
/// <param name="pidl"><c>PIDL</c>.</param>
/// <returns><see cref="ShellItem" />.</returns>
/// <exception cref="ArgumentException"><paramref name="pidl" /> is <c>null</c>.</exception>
/// <exception cref="ShellException">Failed to create <see cref="ShellItem" />.</exception>
internal static ShellItem FromPIDL(PIDL pidl)
{
Contract.Requires <ArgumentException>(pidl != PIDL.Null);
Contract.Ensures(Contract.Result <ShellItem>() != null);
IShellItem2 shellItem;
var code = ShellNativeMethods.SHCreateItemFromIDList(
pidl,
ref ShellIIDGuid.IShellItem2,
out shellItem);
if (HRESULT.Failed(code))
{
throw new ShellException(ErrorMessages.ShellFactoryUnableToCreateItem, Marshal.GetExceptionForHR(code));
}
return(new ShellItem(shellItem));
}
