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author | rjohnson <rjohnson> | 1998-04-01 09:37:39 (GMT) |
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committer | rjohnson <rjohnson> | 1998-04-01 09:37:39 (GMT) |
commit | 13242623d2ff3ea02ab6a62bfb48a7dbb5c27e22 (patch) | |
tree | 3100714738a7941b590efee466a774862f9671c3 /doc/GetAnchor.3 | |
parent | e4ab1102029f9ac557ff190bfb9d34408340f345 (diff) | |
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-rw-r--r-- | doc/GetAnchor.3 | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/doc/GetAnchor.3 b/doc/GetAnchor.3 new file mode 100644 index 0000000..4c5cdfb --- /dev/null +++ b/doc/GetAnchor.3 @@ -0,0 +1,64 @@ +'\" +'\" Copyright (c) 1990 The Regents of the University of California. +'\" Copyright (c) 1994-1996 Sun Microsystems, Inc. +'\" +'\" See the file "license.terms" for information on usage and redistribution +'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. +'\" +'\" SCCS: @(#) GetAnchor.3 1.9 96/03/26 18:08:45 +'\" +.so man.macros +.TH Tk_GetAnchor 3 "" Tk "Tk Library Procedures" +.BS +.SH NAME +Tk_GetAnchor, Tk_NameOfAnchor \- translate between strings and anchor positions +.SH SYNOPSIS +.nf +\fB#include <tk.h>\fR +.sp +int +\fBTk_GetAnchor(\fIinterp, string, anchorPtr\fB)\fR +.sp +char * +\fBTk_NameOfAnchor(\fIanchor\fB)\fR +.SH ARGUMENTS +.AS "Tk_Anchor" *anchorPtr +.AP Tcl_Interp *interp in +Interpreter to use for error reporting. +.AP char *string in +String containing name of anchor point: one of ``n'', ``ne'', ``e'', ``se'', +``s'', ``sw'', ``w'', ``nw'', or ``center''. +.AP int *anchorPtr out +Pointer to location in which to store anchor position corresponding to +\fIstring\fR. +.AP Tk_Anchor anchor in +Anchor position, e.g. \fBTCL_ANCHOR_CENTER\fR. +.BE + +.SH DESCRIPTION +.PP +\fBTk_GetAnchor\fR places in \fI*anchorPtr\fR an anchor position +(enumerated type \fBTk_Anchor\fR) +corresponding to \fIstring\fR, which will be one of +\fBTK_ANCHOR_N\fR, \fBTK_ANCHOR_NE\fR, \fBTK_ANCHOR_E\fR, \fBTK_ANCHOR_SE\fR, +\fBTK_ANCHOR_S\fR, \fBTK_ANCHOR_SW\fR, \fBTK_ANCHOR_W\fR, \fBTK_ANCHOR_NW\fR, +or \fBTK_ANCHOR_CENTER\fR. +Anchor positions are typically used for indicating a point on an object +that will be used to position that object, e.g. \fBTK_ANCHOR_N\fR means +position the top center point of the object at a particular place. +.PP +Under normal circumstances the return value is \fBTCL_OK\fR and +\fIinterp\fR is unused. +If \fIstring\fR doesn't contain a valid anchor position +or an abbreviation of one of these names, then an error message is +stored in \fIinterp->result\fR, \fBTCL_ERROR\fR is returned, and +\fI*anchorPtr\fR is unmodified. +.PP +\fBTk_NameOfAnchor\fR is the logical inverse of \fBTk_GetAnchor\fR. +Given an anchor position such as \fBTK_ANCHOR_N\fR it returns a +statically-allocated string corresponding to \fIanchor\fR. +If \fIanchor\fR isn't a legal anchor value, then +``unknown anchor position'' is returned. + +.SH KEYWORDS +anchor position |