private bool BeginList()
{
if (UserRemovedItems == null)
{
throw new InvalidOperationException(
"You must register for the JumpListManager.UserRemovedItems event before adding any items");
}
object obj;
_customDestinationList.BeginList(
out _maxSlotsInList,
ref SafeNativeMethods.IID_IObjectArray,
out obj);
IObjectArray removedItems = (IObjectArray)obj;
uint count;
removedItems.GetCount(out count);
if (count == 0)
{
return(true);
}
string[] removedItemsArr = new string[count];
for (uint i = 0; i < count; ++i)
{
object item;
removedItems.GetAt(i, ref SafeNativeMethods.IID_IUnknown, out item);
try
{
IShellLinkW shellLink = (IShellLinkW)item;
if (shellLink != null)
{
StringBuilder sb = new StringBuilder(256);
shellLink.GetPath(sb, sb.Capacity, IntPtr.Zero, 2);
removedItemsArr[i] = sb.ToString();
}
continue;
}
catch (InvalidCastException)//It's not a shell link
{
}
try
{
VistaBridgeInterop.IShellItem shellItem = (VistaBridgeInterop.IShellItem)item;
if (shellItem != null)
{
string path;
shellItem.GetDisplayName(
VistaBridgeInterop.SafeNativeMethods.SIGDN.SIGDN_FILESYSPATH,
out path);
removedItemsArr[i] = path;
}
}
catch (InvalidCastException)
{
//It's neither a shell link nor a shell item.
//This is impossible.
Debug.Assert(false,
"List of removed items contains something that is neither a shell item nor a shell link");
}
}
UserRemovedItemsEventArgs args = new UserRemovedItemsEventArgs(removedItemsArr);
UserRemovedItems(this, args);
if (args.CancelCurrentOperation)
{
_customDestinationList.AbortList();
}
return(!args.CancelCurrentOperation);
}
internal static extern int SHShowManageLibraryUI(
[In, MarshalAs(UnmanagedType.Interface)] Microsoft.SDK.Samples.VistaBridge.Interop.IShellItem library,
[In] IntPtr hwndOwner,
[In] string title,
[In] string instruction,
[In] SafeNativeMethods.LIBRARYMANAGEDIALOGOPTIONS lmdOptions);
/// <summary>
/// Retrieves all application destinations belonging to the specified
/// application destination type.
/// </summary>
/// <param name="type">The application destination type.</param>
/// <returns>A copy of the application destinations belonging to
/// the specified type; modifying the returned objects has no effect
/// on the application's destination list.</returns>
public IEnumerable <IJumpListDestination> GetApplicationDestinations(
ApplicationDestinationType type)
{
if (type == ApplicationDestinationType.NONE)
{
throw new ArgumentException("type can't be NONE");
}
IApplicationDocumentLists destinations = (IApplicationDocumentLists)
new CApplicationDocumentLists();
Guid iidObjectArray = typeof(IObjectArray).GUID;
object obj;
destinations.GetList((APPDOCLISTTYPE)type, 100,
ref iidObjectArray, out obj);
List <IJumpListDestination> returnValue = new List <IJumpListDestination>();
Guid iidShellItem = typeof(VistaBridgeInterop.IShellItem).GUID;
Guid iidShellLink = typeof(IShellLinkW).GUID;
IObjectArray array = (IObjectArray)obj;
uint count;
array.GetCount(out count);
for (uint i = 0; i < count; ++i)
{
try
{
array.GetAt(i, ref iidShellItem, out obj);
}
catch (Exception)//Wrong type
{
}
if (obj == null)
{
array.GetAt(i, ref iidShellLink, out obj);
//This shouldn't fail since if it's not IShellItem
//then it must be IShellLink.
IShellLinkW link = (IShellLinkW)obj;
ShellLink wrapper = new ShellLink();
StringBuilder sb = new StringBuilder(256);
link.GetPath(sb, sb.Capacity, IntPtr.Zero, 2);
wrapper.Path = sb.ToString();
link.GetArguments(sb, sb.Capacity);
wrapper.Arguments = sb.ToString();
int iconId;
link.GetIconLocation(sb, sb.Capacity, out iconId);
wrapper.IconIndex = iconId;
wrapper.IconLocation = sb.ToString();
uint showCmd;
link.GetShowCmd(out showCmd);
wrapper.ShowCommand = (WindowShowCommand)showCmd;
link.GetWorkingDirectory(sb, sb.Capacity);
wrapper.WorkingDirectory = sb.ToString();
returnValue.Add(wrapper);
}
else //It's an IShellItem.
{
VistaBridgeInterop.IShellItem item = (VistaBridgeInterop.IShellItem)obj;
ShellItem wrapper = new ShellItem();
string path;
item.GetDisplayName(
VistaBridgeInterop.SafeNativeMethods.SIGDN.SIGDN_FILESYSPATH,
out path);
wrapper.Path = path;
//Title and Category are irrelevant here, because it's
//an IShellItem. The user might want to see them, but he's
//free to go to the IShellItem and look at its property store.
returnValue.Add(wrapper);
}
}
return(returnValue);
}