How can casting be done from Integer to WinId/handle or String to WinId/handle

[ankursaxena]

I have stored the WinId of a window which was hexadecimal value. then I converted this value to integer and passes to another window. Here I want to use value of WinId of first window so that it can get focus.

But the problem is that WinId value of first Window is in integer . Now how can it cast in to WinId/handle ?? So that I get handle to that window

[ankursaxena]

Any one ??