void InitFolder(IntPtr pidl, string dirPath, IShellFolder pShellFolderInterface,
bool isThrow = true)
{
// Bind the shell folder interface.
int result = 0;
IShellFolder shellFolderInterface = IFolder(pidl, pShellFolderInterface, ref result);
this.ShellFolderInterface = shellFolderInterface;
// as ShellFolderInterface2
this.ItemInterface = null;
if (this.IsFileSystem)
{
// if (RunningVista)
this.ItemInterface = ILShell32.SHCreateItemFromParsingName(dirPath, IntPtr.Zero,
typeof(IShellItem).GUID);
}
// Validate the result.
if (shellFolderInterface != null && result != 0)
{
// Throw the failure as an exception.
if (isThrow)
{
Marshal.ThrowExceptionForHR((int)result);
}
}
}
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);
}