'\"
'\" Copyright (c) 1997 Maorong Zou
'\" 
.TH EZ_GetHistogramSelection 3 "" EZWGL "EZWGL Functions"
.BS
.SH NAME
EZ_GetHistogramSelection \- return the selected bin number and bin value

.SH SYNOPSIS
.nf
.B #include <EZ.h>
.sp
.BI "int EZ_GetHistogramSelection( EZ_Widget *" histogram ", float *" valueReturn)
        

.SH ARGUMENTS
\fIhistogram\fR  Specifies a histogram widget.
.sp
\fIvalueReturn\fR  Specifies a place to return the bin value.
.sp

.SH DESCRIPTION
        
.PP
\fBEZ_GetHistogramSelection\fR  return the bin number and its value
o the last selected bin. The selection is set when the left mouse button
is pressed over a histogram widget. If no selection is available, this
function returns -1.

.SH "SEE ALSO"
EZ_SetHistogramValue(3), EZ_SetHistogramColors(3)
.br