public static IntPtr ParseDesktopContext(ShellItem itemHit, IShellFolder shellFolder, System.Windows.Forms.Control ctrl)
{
IntPtr ppv = IntPtr.Zero;
// The item pidl is either the folder if the item is a folder, or the combined pidl otherwise.
if (ILShell32.ILIsEqual(itemHit.PIDL, ShellItem.Desktop.PIDL))
{
var fullIdList = itemHit.IsFolder
? PidlManager.PidlToIdlist(itemHit.PIDL)
: PidlManager.Combine(PidlManager.PidlToIdlist(itemHit.ParentItem.PIDL),
PidlManager.PidlToIdlist(itemHit.RelativePIDL));
// Get the UI object of the context menu.
// IntPtr itemPidl = PidlManager.IdListToPidl(fullIdList);
IntPtr itemPidl = itemHit.RelativePIDL;
IntPtr[] apidl = new IntPtr[] { itemPidl };
// PidlManager.PidlsToAPidl(new IntPtr[] { itemPidl })
shellFolder.GetUIObjectOf(ctrl.Handle, (uint)1,
apidl,
ref Shell32.IID_IContextMenu, 0,
out ppv);
}
return(ppv);
}
public static bool ShowMenu(ShellContextMenu menu, IShellFolder shellFolder, ShellItem itemHit,
System.Windows.Forms.Control ctrl, System.Drawing.Point pt)
{
if (ctrl is ControlWindow)
{
(ctrl as ControlWindow).ParentMenu = menu;
}
var PIDL = itemHit.PIDL;
if (itemHit.IsFolder)
{
IShellItem parentInterface = itemHit.ParentItem != null ? itemHit.ParentItem.ItemInterface : null;
if (parentInterface == null)
{
var parentPath = Path.GetFullPath(itemHit.Path + @"..\");
parentInterface = ILShell32.SHCreateItemFromParsingName(parentPath, IntPtr.Zero, typeof(IShellItem).GUID);
}
if (menu.ComInterface == null)
{
var aPidl = PidlManager.PidlToIdlist(itemHit.PIDL);
if (parentInterface != null && !menu.InitFolderPath(shellFolder, parentInterface, itemHit.PIDL, itemHit.Path))
{
return(false);
}
}
}
if (menu.ComInterface == null && !menu.InitFolder(shellFolder, PIDL))
{
return(false);
}
menu.ShowContextMenu(ctrl, pt);
return(true);
}