public static bool GetNewContextMenu(DirectoryInfoEx item, out IntPtr iContextMenuPtr, out IContextMenu iContextMenu)
{
if (ShellAPI.CoCreateInstance(
ref ShellAPI.CLSID_NewMenu,
IntPtr.Zero,
ShellAPI.CLSCTX.INPROC_SERVER,
ref ShellAPI.IID_IContextMenu,
out iContextMenuPtr) == ShellAPI.S_OK)
{
iContextMenu = Marshal.GetTypedObjectForIUnknown(iContextMenuPtr, typeof(IContextMenu)) as IContextMenu;
IntPtr iShellExtInitPtr;
if (Marshal.QueryInterface(
iContextMenuPtr,
ref ShellAPI.IID_IShellExtInit,
out iShellExtInitPtr) == ShellAPI.S_OK)
{
IShellExtInit iShellExtInit = Marshal.GetTypedObjectForIUnknown(
iShellExtInitPtr, typeof(IShellExtInit)) as IShellExtInit;
item.RequestPIDL(pidlLookup =>
{
iShellExtInit.Initialize(pidlLookup.Ptr, 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 GetIDropTargetHelper(out IntPtr helperPtr, out IDropTargetHelper dropHelper)
{
if (ShellAPI.CoCreateInstance(
ref ShellAPI.CLSID_DragDropHelper,
IntPtr.Zero,
ShellAPI.CLSCTX.INPROC_SERVER,
ref ShellAPI.IID_IDropTargetHelper,
out helperPtr) == ShellAPI.S_OK)
{
dropHelper =
(IDropTargetHelper)Marshal.GetTypedObjectForIUnknown(helperPtr, typeof(IDropTargetHelper));
return(true);
}
else
{
dropHelper = null;
helperPtr = IntPtr.Zero;
return(false);
}
}