[fpc-pascal] FPC and GTK@: signals spreading

[Marco van de Voort]

> The second question (is gtkentry widget in W32 release corrupted?) 
> remains alive.

GTK1 was debugged for Windows because lazarus used it at first. However
Lazarus switched to plain win32 later, so I don't think GTK2 on windows is
too well debugged in relation with FPC, and I know nobody that uses GTK2
with FPC on Windows.

Maybe the best way to start is to check GTK2 itself, and see if you can find
a list of differences between GTK2 on *nix and windows. (e.g. #ifdefs in
the headers, calling conventions etc)