'\"
'\" Copyright (c) 1997 Maorong Zou
'\" 
.TH EZ_SetupRuler 3 "" EZWGL "EZWGL Functions"
.BS
.SH NAME
EZ_SetupRuler\- setup a ruler widget

.SH SYNOPSIS
.nf
.B #include <EZ.h>
.sp
.BI "void EZ_SetupRuler( EZ_Widget *"ruler ", int " tickUnit.
.BI "                    int " tickLen ", int " nscale ", int " offset);
.BI "void EZ_SetRulerOffset( EZ_Widget *"ruler ", int " offset );

.SH ARGUMENTS
\fIruler\fR  Specifies a ruler widget.
.sp
\fIoffset\fR specifies an offset of the ruler origin. That is,
the origin of the ruler window will be treated as -offset units.
.sp
\fItickUnit, tickLen, nscle\fR specifies a set of control parameters.
\fItickUnit\fR is distance between tick marks. If tickUnit is zero,
it will be set approximately the equivalent of 1mm in pixels. 
If tickUnit is negative, it will be set to the equivalent of 1/8 inch in
pixels. Otherwise, it is treated as the number of pixels.
\fItickLength\fR  is the length of the longest tick marks and \fInScale\fR
represents the value corresponds to 10 tick units.

.sp
\fIx,y\fR specifies the pointer coordinates relative to the source window.


.SH DESCRIPTION
.PP
These functions  set a mark on a ruler widget. A ruler widget
has two static marks.

.SH "SEE ALSO"
EZ_WidgetNotifyRuler(3), EZ_GetRulerMarks(3)
.br