TclStubs.tcl_UtfToExternal
struct TclStubs
extern (C)
int function(Tcl_Interp* interp, Tcl_Encoding encoding, const(char)* src, int srcLen, int flags, Tcl_EncodingState* statePtr, const(char)* dst, int dstLen, int* srcReadPtr, int* dstWrotePtr, int* dstCharsPtr) nothrow tcl_UtfToExternal;