Version française
Home     About     Download     Resources     Contact us    

This site is updated infrequently. For up-to-date information, please visit the new OCaml website at

Browse thread
[Caml-list] Type hidding
[ Home ] [ Index: by date | by threads ]
[ Search: ]

[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
Date: -- (:)
From: Warp <warplayer@f...>
Subject: [Caml-list] Type hidding
Hello !
I'm having theses functions :

external set_window_data : wnd:hwnd -> 'a -> unit = "set_window_data"
external get_window_data : wnd:hwnd -> 'a = "get_window_data"

I know that's very type-unsafe and all, but i really need the user to be
able to put any kind of data into it. If you got another idea, please let me

BTW, then with my handle i'm doing that :
    (set_window_data wnd 0);
    (print_int (get_window_data wnd));

but it raises (about the call the get_window_data ) :
    This expression has type wnd:hwnd -> 'a but is here used with type int

I've tried to "force" the return value to int but it doesn't seems to work.
Any help welcomed.


Bug reports:  FAQ:
To unsubscribe, mail  Archives: