|Subject:||bare `Exists` not working under TkHijack|
If a program uses `Exists` (and possibly other symbols) instead of `Tk::Exists`, an error results: Can't locate object method "Exists" via package "MyPackage" at MyPackage.pm line nnn. One workaround is to replace `Exists` with `Tk::Exists`. I'm not yet sure what causes this. Tcl/pTk.pm does have `@EXPORT (@perlTk, …);` where `my @perlTk = qw(… Exists …);`, and TkHijack.pm redefines `Tk::Exists` to `Tcl::pTk::Exists`. And most other bare symbols like `MainLoop` seem to work fine.