public static bool GetNewContextMenu(IntPtr pidl, out IntPtr iContextMenuPtr, out IContextMenu iContextMenu)
{
//アンマネージなIContextMenuを作成する
if (Ole32Wrapper.CoCreateInstance(
ref GUIDs.CLSID_NewMenu,
IntPtr.Zero,
CLSCTX.INPROC_SERVER,
ref GUIDs.IID_IContextMenu,
out iContextMenuPtr) == Shell32Wrapper.S_OK)
{
//アンマネージからマネージなオブジェクトを取得
iContextMenu = Marshal.GetTypedObjectForIUnknown(iContextMenuPtr, typeof(IContextMenu)) as IContextMenu;
//アンマネージなIContextMenuからアンマネージなIShellExtInitを取得する
IntPtr iShellExtInitPtr;
if (Marshal.QueryInterface(
iContextMenuPtr,
ref GUIDs.IID_IShellExtInit,
out iShellExtInitPtr) == Shell32Wrapper.S_OK)
{
//アンマネージからマネージなオブジェクトを取得
IShellExtInit iShellExtInit = Marshal.GetTypedObjectForIUnknown(iShellExtInitPtr, typeof(IShellExtInit)) as IShellExtInit;
//とりあえず初期化する
//マナーのようです
int hresult = iShellExtInit.Initialize(pidl, IntPtr.Zero, 0);
Marshal.ReleaseComObject(iShellExtInit);
Marshal.Release(iShellExtInitPtr);
return(true);
}
else
{
if (iContextMenu != null)
{
Marshal.ReleaseComObject(iContextMenu);
iContextMenu = null;
}
if (iContextMenuPtr != IntPtr.Zero)
{
Marshal.Release(iContextMenuPtr);
iContextMenuPtr = IntPtr.Zero;
}
return(false);
}
}
else
{
iContextMenuPtr = IntPtr.Zero;
iContextMenu = null;
return(false);
}
}
/*
* public static bool GetIStream(ShellItem item, out IntPtr streamPtr, out IStream stream)
* {
* if (item.ParentItem.ShellFolder.BindToStorage(
* item.PIDLRel.Ptr,
* IntPtr.Zero,
* ref Shell32Wrapper.IID_IStream,
* out streamPtr) == Shell32Wrapper.S_OK)
* {
* stream = (IStream)Marshal.GetTypedObjectForIUnknown(streamPtr, typeof(IStream));
* return true;
* }
* else
* {
* stream = null;
* streamPtr = IntPtr.Zero;
* return false;
* }
* }
*/
/*
* public static bool GetIStorage(ShellItem item, out IntPtr storagePtr, out IStorage storage)
* {
* if (item.ParentItem.ShellFolder.BindToStorage(
* item.PIDLRel.Ptr,
* IntPtr.Zero,
* ref Shell32Wrapper.IID_IStorage,
* out storagePtr) == Shell32Wrapper.S_OK)
* {
* storage = (IStorage)Marshal.GetTypedObjectForIUnknown(storagePtr, typeof(IStorage));
* return true;
* }
* else
* {
* storage = null;
* storagePtr = IntPtr.Zero;
* return false;
* }
* }
*/
#endregion
#region Drag/Drop
/*
* /// <summary>
* /// This method will use the GetUIObjectOf method of IShellFolder to obtain the IDataObject of a
* /// ShellItem.
* /// </summary>
* /// <param name="item">The item for which to obtain the IDataObject</param>
* /// <param name="dataObjectPtr">A pointer to the returned IDataObject</param>
* /// <returns>the IDataObject the ShellItem</returns>
* public static IntPtr GetIDataObject(ShellItem[] items)
* {
* ShellItem parent = items[0].ParentItem != null ? items[0].ParentItem : items[0];
*
* IntPtr[] pidls = new IntPtr[items.Length];
* for (int i = 0; i < items.Length; i++)
* pidls[i] = items[i].PIDLRel.Ptr;
*
* IntPtr dataObjectPtr;
* if (parent.ShellFolder.GetUIObjectOf(
* IntPtr.Zero,
* (uint)pidls.Length,
* pidls,
* ref Shell32Wrapper.IID_IDataObject,
* IntPtr.Zero,
* out dataObjectPtr) == Shell32Wrapper.S_OK)
* {
* return dataObjectPtr;
* }
* else
* {
* return IntPtr.Zero;
* }
* }
*/
/*
* /// <summary>
* /// This method will use the GetUIObjectOf method of IShellFolder to obtain the IDropTarget of a
* /// ShellItem.
* /// </summary>
* /// <param name="item">The item for which to obtain the IDropTarget</param>
* /// <param name="dropTargetPtr">A pointer to the returned IDropTarget</param>
* /// <returns>the IDropTarget from the ShellItem</returns>
* public static bool GetIDropTarget(ShellItem item, out IntPtr dropTargetPtr, out IDropTarget dropTarget)
* {
* ShellItem parent = item.ParentItem != null ? item.ParentItem : item;
*
* if (parent.ShellFolder.GetUIObjectOf(
* IntPtr.Zero,
* 1,
* new IntPtr[] { item.PIDLRel.Ptr },
* ref Shell32Wrapper.IID_IDropTarget,
* IntPtr.Zero,
* out dropTargetPtr) == Shell32Wrapper.S_OK)
* {
* dropTarget =
* (IDropTarget)Marshal.GetTypedObjectForIUnknown(dropTargetPtr, typeof(IDropTarget));
*
* return true;
* }
* else
* {
* dropTarget = null;
* dropTargetPtr = IntPtr.Zero;
* return false;
* }
* }
*/
public static bool GetIDropTargetHelper(out IntPtr helperPtr, out IDropTargetHelper dropHelper)
{
if (Ole32Wrapper.CoCreateInstance(
ref GUIDs.CLSID_DragDropHelper,
IntPtr.Zero,
CLSCTX.INPROC_SERVER,
ref GUIDs.IID_IDropTargetHelper,
out helperPtr) == Shell32Wrapper.S_OK)
{
dropHelper =
(IDropTargetHelper)Marshal.GetTypedObjectForIUnknown(helperPtr, typeof(IDropTargetHelper));
return(true);
}
else
{
dropHelper = null;
helperPtr = IntPtr.Zero;
return(false);
}
}
