Documentation generated from fossil trunk
Tk_GetJoinStyle, Tk_NameOfJoinStyle -
translate between strings and join styles
#include <tk.h> int Tk_GetJoinStyle(interp, string, joinPtr) const char * Tk_NameOfJoinStyle(join)
| Type | Name | Mode |
|---|---|---|
| Tcl_Interp | *interp | in |
| Interpreter to use for error reporting. | ||
| const char | *string | in |
| String containing name of join style - one of "bevel", "miter", or "round" - or a unique abbreviation of one. | ||
| int | *joinPtr | out |
| Pointer to location in which to store X join style corresponding to string. | ||
| int | join | in |
| Join style: one of JoinBevel, JoinMiter, JoinRound. | ||
Tk_GetJoinStyle places in *joinPtr the X join style corresponding to string, which will be one of JoinBevel, JoinMiter, or JoinRound. Join styles are typically used in X graphics contexts to indicate how adjacent line segments should be joined together. See the X documentation for information on what each style implies.
Under normal circumstances the return value is TCL_OK and interp is unused. If string does not contain a valid join style or an abbreviation of one of these names, then an error message is stored in interpreter interp's result, TCL_ERROR is returned, and *joinPtr is unmodified.
Tk_NameOfJoinStyle is the logical inverse of Tk_GetJoinStyle. Given a join style such as JoinBevel it returns a statically-allocated string corresponding to join. If join is not a legal join style, then "unknown join style" is returned.