Tcl/Tk Documentation > TkLib > GetCapStyl
Tk_GetCapStyle(interp, string, capPtr)
const char *
- Tcl_Interp *interp (in)
- Interpreter to use for error reporting.
- const char *string (in)
- String containing name of cap style: one of “butt”, “projecting”, or “round”.
- int *capPtr (out)
- Pointer to location in which to store X cap style corresponding to string.
- int cap (in)
- Cap style: one of CapButt, CapProjecting, or CapRound.
Under normal circumstances the return value is TCL_OK and interp is unused. If string does not contain a valid cap style or an abbreviation of one of these names, then an error message is stored in interp->result, TCL_ERROR is returned, and *capPtr is unmodified.
Tk_NameOfCapStyle is the logical inverse of Tk_GetCapStyle. Given a cap style such as CapButt it returns a statically-allocated string corresponding to cap. If cap is not a legal cap style, then “unknown cap style” is returned.butt, cap style, projecting, round