Provided by: tk8.4-doc_8.4.20-7_all 
NAME
Tk_GetJustifyFromObj, Tk_GetJustify, Tk_NameOfJustify - translate between strings and justification
styles
SYNOPSIS
#include <tk.h>
int 2
Tk_GetJustifyFromObj(interp, objPtr, justifyPtr) 2
int 2
Tk_GetJustify(interp, string, justifyPtr) 2
CONST char * 2
Tk_NameOfJustify(justify) 2
ARGUMENTS 2
Tcl_Interp *interp (in) 2
Interpreter to use for error reporting, or NULL. 2
Tcl_Obj *objPtr (in/out) 2
String value contains name of justification style (left, right, or 2
center). The internal rep will be modified to cache corresponding 2
justify value. 2
CONST char *string (in) 2
Same as objPtr except description of justification style is passed 2
as a string.
int *justifyPtr (out) Pointer to location in which to store justify value corresponding to
objPtr or string.
Tk_Justify justify (in) Justification style (one of the values listed below).
_________________________________________________________________
DESCRIPTION
Tk_GetJustifyFromObj places in *justifyPtr the justify value corresponding to objPtr's value. This value 2
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 objPtr doesn't contain a 2
valid justification style or an abbreviation of one of these names, TCL_ERROR is returned, *justifyPtr is 2
unmodified, and an error message is stored in interp's result if interp isn't NULL. Tk_GetJustifyFromObj 2
caches information about the return value in objPtr, which speeds up future calls to Tk_GetJustifyFromObj 2
with the same objPtr. 2
Tk_GetJustify is identical to Tk_GetJustifyFromObj except that the description of the justification is 2
specified with a string instead of an object. This prevents Tk_GetJustify from caching the return value, 2
so Tk_GetJustify is less efficient than Tk_GetJustifyFromObj.
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
Tk 8.1 Tk_GetJustifyFromObj(3tk)