internal static IPropertyStore CreateDefaultPropertyStore(ShellObject shellObj)
{
IPropertyStore nativePropertyStore = null;
Guid guid = new Guid(ShellIIDGuid.IPropertyStore);
int hr = shellObj.NativeShellItem2.GetPropertyStore(
ShellNativeMethods.GetPropertyStoreOptions.BestEffort,
ref guid,
out nativePropertyStore);
// throw on failure
if (nativePropertyStore == null || !CoreErrorHelper.Succeeded(hr))
{
throw new Exception(hr.ToString());
}
return(nativePropertyStore);
}
/// <summary>
/// Gets the localized display string that describes the current sort order.
/// </summary>
/// <param name="descending">
/// Indicates the sort order should
/// reference the string "Z on top"; otherwise, the sort order should reference the string "A on top".
/// </param>
/// <returns>The sort description for this property.</returns>
/// <remarks>
/// The string retrieved by this method is determined by flags set in the
/// <c>sortDescription</c> attribute of the <c>labelInfo</c> element in the property's .propdesc file.
/// </remarks>
public string GetSortDescriptionLabel(bool descending)
{
IntPtr ptr = IntPtr.Zero;
string label = string.Empty;
if (NativePropertyDescription != null)
{
HResult hr = NativePropertyDescription.GetSortDescriptionLabel(descending, out ptr);
if (CoreErrorHelper.Succeeded(hr) && ptr != IntPtr.Zero)
{
label = Marshal.PtrToStringUni(ptr);
// Free the string
Marshal.FreeCoTaskMem(ptr);
}
}
return(label);
}