Tk4.2 C API Man Page -- GetJustify (n)
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NAME

Tk_GetJustify, Tk_NameOfJustify - translate between strings and justification styles

SYNOPSIS

#include <tk.h>

Tk_Justify
Tk_GetJustify(interp, string, justifyPtr)

char *
Tk_NameOfJustify(justify)

ARGUMENTS

Tcl_Interp *interp (in) Interpreter to use for error reporting.

char
*string (in) String containing name of justification style (``left'', ``right'', or ``center'').

int
*justifyPtr (out) Pointer to location in which to store justify value corresponding to string.

Tk_Justify justify (in) Justification style (one of the values listed below).

DESCRIPTION

Tk_GetJustify places in *justifyPtr the justify value corresponding to string. This value will be one of the following:

TK_JUSTIFY_LEFT
Means that the text on each line should start at the left edge of the line; as a result, the right edges of lines may be ragged.

TK_JUSTIFY_RIGHT
Means that the text on each line should end at the right edge of the line; as a result, the left edges of lines may be ragged.

TK_JUSTIFY_CENTER
Means that the text on each line should be centered; as a result, both the left and right edges of lines may be ragged.

Under normal circumstances the return value is TCL_OK and interp is unused. If string doesn't contain a valid justification style or an abbreviation of one of these names, then an error message is stored in interp->result, TCL_ERROR is returned, and *justifyPtr is unmodified.

Tk_NameOfJustify is the logical inverse of Tk_GetJustify. Given a justify value it returns a statically-allocated string corresponding to justify. If justify isn't a legal justify value, then ``unknown justification style'' is returned.

KEYWORDS

center, fill, justification, string

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