Tk_GetReliefFromObj manual page - Tk Library Procedures

Tcl 9.0/Tk9.0 Documentation > Tk C API, version 9.0.1 > GetRelief

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NAME

Tk_GetReliefFromObj, Tk_GetRelief, Tk_NameOfRelief — translate between strings and relief values

SYNOPSIS

#include <tk.h>

int

Tk_GetReliefFromObj(interp, objPtr, reliefPtr)

int

Tk_GetRelief(interp, name, reliefPtr)

const char *

Tk_NameOfRelief(relief)

ARGUMENTS

DESCRIPTION

KEYWORDS

NAME

Tk_GetReliefFromObj, Tk_GetRelief, Tk_NameOfRelief — translate between strings and relief values

SYNOPSIS

#include <tk.h>
int
Tk_GetReliefFromObj(interp, objPtr, reliefPtr)
int
Tk_GetRelief(interp, name, reliefPtr)
const char *
Tk_NameOfRelief(relief)

ARGUMENTS

Tcl_Interp *interp (in): Interpreter to use for error reporting.
Tcl_Obj *objPtr (in/out): String value contains name of relief, one of “flat”, “groove”, “raised”, “ridge”, “solid”, or “sunken” (or any unique abbreviation thereof on input); the internal rep will be modified to cache corresponding relief value.
const char *name (in): Same as objPtr except description of relief is passed as a string.
int *reliefPtr (out): Pointer to location in which to store relief value corresponding to objPtr or name.
int relief (in): Relief value (one of TK_RELIEF_FLAT, TK_RELIEF_RAISED, TK_RELIEF_SUNKEN, TK_RELIEF_GROOVE, TK_RELIEF_SOLID, or TK_RELIEF_RIDGE).

Tk_GetReliefFromObj places in *reliefPtr the relief value corresponding to the value of objPtr. This value will be one of TK_RELIEF_FLAT, TK_RELIEF_RAISED, TK_RELIEF_SUNKEN, TK_RELIEF_GROOVE, TK_RELIEF_SOLID, or TK_RELIEF_RIDGE. Under normal circumstances the return value is TCL_OK and interp is unused. If objPtr does not contain one of the valid relief names or an abbreviation of one of them, then TCL_ERROR is returned, *reliefPtr is unmodified, and an error message is stored in interp's result if interp is not NULL. Tk_GetReliefFromObj caches information about the return value in objPtr, which speeds up future calls to Tk_GetReliefFromObj with the same objPtr.

Tk_GetRelief is identical to Tk_GetReliefFromObj except that the description of the relief is specified with a string instead of an object. This prevents Tk_GetRelief from caching the return value, so Tk_GetRelief is less efficient than Tk_GetReliefFromObj.

Tk_NameOfRelief is the logical inverse of Tk_GetRelief. Given a relief value it returns the corresponding string (flat, raised, sunken, groove, solid, or ridge). If relief is not a legal relief value, then “unknown relief” is returned.

KEYWORDS

name, relief, string