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-.\" $Xorg: Porthole,v 1.3 2000/08/17 19:42:27 cpqbld Exp $
-.NH 2
-Porthole Widget
-.LP
-.XS
- Porthole Widget
-.XE
-.IN "Porthole widget" "" "@DEF@"
-.Ds 0
-.TA 2.0i
-.ta 2.0i
-.sp
-Application Header file <X11/Xaw/Porthole.h>
-.IN "Porthole.h" ""
-Class Header file <X11/Xaw/PortholeP.h>
-.IN "PortholeP.h" ""
-Class portholeWidgetClass
-.IN "portholeWidgetClass" ""
-Class Name Porthole
-.IN "Porthole widget" "class name"
-Superclass Composite
-.sp
-.De
-.LP
-The Porthole widget provides geometry management of a list of arbitrary
-widgets, only one of which may be managed at any particular time.
-The managed child widget is reparented within the porthole and is moved around
-by the application (typically under the control of a Panner widget).
-.NH 3
-Resources
-.LP
-When creating a Porthole widget instance, the following resources are
-retrieved from the argument list or from the resource database:
-.LP
-.IN "Porthole widget" "resources"
-.TS H
-expand;
-lw(1i) lw(1i) lw(1i) lw(.5i) lw(2i).
-_
-.sp 3p
-.TB
-Name Class Type Notes Default Value
-.sp 3p
-_
-.TH
-.R
-.sp 3p
-accelerators Accelerators AcceleratorTable NULL
-ancestorSensitive AncestorSensitive Boolean D True
-background Background Pixel XtDefaultBackground
-backgroundPixmap Pixmap Pixmap XtUnspecifiedPixmap
-borderColor BorderColor Pixel XtDefaultForeground
-borderPixmap Pixmap Pixmap XtUnspecifiedPixmap
-borderWidth BorderWidth Dimension 1
-children ReadOnly WidgetList R NULL
-colormap Colormap Colormap Parent's Colormap
-depth Depth int C Parent's Depth
-destroyCallback Callback XtCallbackList NULL
-height Height Dimension A see \fBLayout Semantics\fP
-mappedWhenManaged MappedWhenManaged Boolean True
-numChildren ReadOnly Cardinal R 0
-reportCallback ReportCallback Callback NULL
-screen Screen Screen R Parent's Screen
-sensitive Sensitive Boolean True
-translations Translations TranslationTable NULL
-width Width Dimension A see \fBLayout Semantics\fP
-x Position Position 0
-y Position Position 0
-.sp 3p
-_
-.TE
-.Ac
-.As
-.Bg
-.Gp
-.Bc
-.Bp
-.Bw
-.Ch
-.Cm
-.Dp
-.Dc
-.Hw
-.Mm
-.Nc
-.IP \fBreportCallback\fP 1.5i
-A list of functions to invoke whenever the managed child widget changes
-size or position.
-.Sc
-.Se
-.Tr
-.Xy
-.NH 3
-Layout Semantics
-.IN "Porthole widget" "layout semantics"
-.LP
-The Porthole widget allows its managed child to request any size
-that is as large
-or larger than the Porthole itself and any location so long as the child
-still obscures all of the Porthole. This widget typically is used with a
-Panner widget.
-.NH 3
-Porthole Callbacks
-.IN "Porthole widget" "callbacks"
-.LP
-The functions registered on the \fBreportCallback\fP list are invoked whenever
-the managed child changes size or position:
-.IN "ReportProc" "" "@DEF@"
-.FD 0
-void ReportProc(\fIporthole\fP, \fIclient_data\fP, \fIreport\fP)
-.br
- Widget \fIporthole\fP;
-.br
- XtPointer \fIclient_data\fP;
-.br
- XtPointer \fIreport\fP; /* (XawPannerReport *) */
-.FN
-.IP \fIporthole\fP 1i
-Specifies the Porthole widget.
-.IP \fIclient_data\fP 1i
-Specifies the client data.
-.IP \fIreport\fP 1i
-Specifies a pointer to an \fBXawPannerReport\fP structure containing
-the location and size of the slider and the size of the canvas.
-