_________________________________________________________________ NAME Tk_GetJustifyFromObj, Tk_GetJustify, Tk_NameOfJustify - translate between strings and justification styles SYNOPSIS #include <tk.h> int | Tk_GetJustifyFromObj(interp, objPtr, justifyPtr) | int | Tk_GetJustify(interp, string, justifyPtr) | char * | Tk_NameOfJustify(justify) | ARGUMENTS | Tcl_Interp *interp (in) || Interpreter to use for | error reporting, or | NULL. | Tcl_Obj *objPtr (in/out) || String value contains | name of justification | style (left, right, or | center). The internal | rep will be modified to | cache corresponding | justify value. | char *string (in) || Same as objPtr except | description of justifi- | cation style is passed | 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 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 valid justif- | ication style or an abbreviation of one of these names, | TCL_ERROR is returned, *justifyPtr is unmodified, and an | error message is stored in interp's result if interp isn't | NULL. Tk_GetJustifyFromObj caches information about the | return value in objPtr, which speeds up future calls to | Tk_GetJustifyFromObj with the same objPtr. | Tk_GetJustify is identical to Tk_GetJustifyFromObj except | that the description of the justification is specified with | a string instead of an object. This prevents Tk_GetJustify | from caching the return value, 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
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