Hi folks: I am calling to the OpenDBX library and this library uses C constants. Suppose something like this: enum odbxerr { ODBX_ERR_SUCCESS, #define ODBX_ERR_SUCCESS ODBX_ERR_SUCCESS ODBX_ERR_BACKEND, #define ODBX_ERR_BACKEND ODBX_ERR_BACKEND ODBX_ERR_NOCAP, #define ODBX_ERR_NOCAP ODBX_ERR_NOCAP ODBX_ERR_PARAM, ......... Then I have a function like this: char* odbx_error( odbx_t* handle, int error ) In that case the int error es the index of the array or I can use the constant. Right now, I am using int from 0 to N. But I would like to invoke calls to that function using Smalltalk Strings that represent C constants. For example, now I have this: OpenDBXUnix>>apiError: handle number: err "long odbx_error(odbx_t*, int)" <cdecl: char* 'odbx_error' (ulong long) module: 'opendbx' > ^self externalCallFailed And I call them this way for example: OpenDBXUnix apiError: handle number: 1. But, I would love to do: OpenDBXUnix apiError: handle number: 'ODBX_ERR_BACKEND'. Of course this fails because it cannot coerce and String to a long. So, that someone know how can I do this (if I can) ? Thanks Mariano