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...\" GetVisi.sgm /main/8 1996/09/08 20:46:48 rws $
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.TH "XmGetVisibility" "library call"
.SH "NAME"
\fBXmGetVisibility\fP \(em A function that determines if a widget is
visible
.iX "XmGetVisibility"
.SH "SYNOPSIS"
.PP
.nf
#include <Xm/Xm\&.h>
\fBXmVisibility \fBXmGetVisibility\fP\fR(
\fBWidget \fBwidget\fR\fR);
.fi
.SH "DESCRIPTION"
.PP
\fBXmGetVisibility\fP returns the visibility state of the specified
widget\&.
It checks to see if some part of the widget\&'s rectangular
area is unobscured
by the widget\&'s ancestors, or some part of the widget\&'s rectangular
area is inside the work window (but possibly outside the clip window)
of a ScrolledWindow whose \fBXmNscrollingPolicy\fP is
\fBXmAUTOMATIC\fP and whose \fBXmNtraverseObscuredCallback\fP is not
NULL\&.
.PP
\fBXmGetVisibility\fP does not check to see if \fIwidget\fP is obscured by
its siblings or by siblings of its ancestors\&. Consequently, \fBXmGetVisibility\fP
returns \fBXmVISIBILITY_UNOBSCURED\fP for widgets which are completely or partially
covered by one or more siblings of \fIwidget\fP by one or more siblings of ancestors
of \fIwidget\fP\&.
.PP
When a widget which is unrealized is being queried, it is indicated
that the widget is fully obscured\&.
If an application unmaps a \fIwidget\fP that has its
\fBXmNmappedWhenManaged\fP resource set to True, the return value
is undefined\&.
When a widget which is unmanaged is being queried, it is
indicated that the widget is fully obscured\&.
.IP "\fIwidget\fP" 10
Specifies the ID of the widget
.SH "RETURN"
.PP
Returns one of the following values:
.IP "\fBXmVISIBILITY_UNOBSCURED\fP" 10
Indicates that the widget is mapped, not obscured, and is completely
visible on the screen\&.
.IP "\fBXmVISIBILITY_PARTIALLY_OBSCURED\fP" 10
Indicates that the widget is mapped, and is not completely
visible on the screen (partially obscured)\&.
.IP "\fBXmVISIBILITY_FULLY_OBSCURED\fP" 10
Indicates that the widget is not at all visible on the screen\&.
.SH "RELATED"
.PP
\fBXmIsTraversable\fP(3),
\fBXmManager\fP(3),
and \fBXmProcessTraversal\fP(3)\&.
...\" created by instant / docbook-to-man, Sun 22 Dec 1996, 20:24