TclStubs.tcl_UtfToExternalDString

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
struct TclStubs
extern (C)
const(char)* function(Tcl_Encoding encoding, const(char)* src, int srcLen, Tcl_DString* dsPtr) nothrow tcl_UtfToExternalDString;

Meta