XtMapWidget(3) XT FUNCTIONS XtMapWidget(3)NAME
XtMapWidget, XtSetMappedWhenManaged, XtUnmapWidget - map and unmap widgets
SYNTAX
int XtMapWidget(Widget w);
void XtSetMappedWhenManaged(Widget w, Boolean map_when_managed);
int XtUnmapWidget(Widget w);
ARGUMENTS
map_when_managed
Specifies a Boolean value that indicates the new value of the map_when_managed field.
w Specifies the widget.
DESCRIPTION
If the widget is realized and managed and if the new value of map_when_managed is True, XtSetMappedWhenManaged maps the window. If the
widget is realized and managed and if the new value of map_when_managed is False, it unmaps the window. XtSetMappedWhenManaged is a conve-
nience function that is equivalent to (but slightly faster than) calling XtSetValues and setting the new value for the mappedWhenManaged
resource. As an alternative to using XtSetMappedWhenManaged to control mapping, a client may set mapped_when_managed to False and use
XtMapWidget and XtUnmapWidget explicitly.
SEE ALSO XtManageChildren(3Xt)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 libXt 1.0.5 XtMapWidget(3)
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XtSetMappedWhenManaged() XtSetMappedWhenManaged()
Name
XtSetMappedWhenManaged - set the value of a widget's XtNmappedWhenManaged resource and map or unmap the window.
Synopsis
void XtSetMappedWhenManaged(w, map_when_managed)
Widget w;
Boolean map_when_managed;
Inputs
w Specifies the widget. Must be of class Core or any subclass thereof.
map_when_managed
Specifies the new value of the map_when_managed field.
Description
If w is realized and managed and if map_when_managed is set to True, XtSetMappedWhenManaged() maps the widget's window. If the widget is
realized and managed and if the new value of map_when_managed is set to False, XtSetMappedWhenManaged() unmaps the widget's window. In
both cases, XtSetMappedWhenManaged() sets the value of the widget's XtNmappedWhenManaged resource as specified by the map_when_managed
argument.
XtSetMappedWhenManaged() is a convenience function that is equivalent to (but slightly faster than) calling XtSetValues() to set the new
value for the XtNmappedWhenManaged resource, and then mapping or unmapping the widget as appropriate.
Usage
A widget is normally mapped when it is managed, which is usually the desired behavior. This behavior can be overridden by setting the XtN-
mappedWhenManaged resource for the widget to False, and then calling XtSetMappedWhenManaged() to map and unmap the widget or by calling
XtMapWidget() and XtUnmapWidget() explicitly.
A widget that is managed but unmapped will have screen space allocated for it, but will not appear in that space. A widget that is unman-
aged will not have screen space allocated for it, and if mapped will likely appear in an undesirable place.
See AlsoXtManageChild(1), XtMapWidget(1), XtUnmapWidget(1).
Xt - Resource Management XtSetMappedWhenManaged()
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)