TclStubs.tcl_GetOpenFile

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
struct TclStubs
version(Posix)
extern (C)
int function(Tcl_Interp* interp, const(char)* chanID, int forWriting, int checkUsage, ClientData* filePtr) nothrow tcl_GetOpenFile;

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