NAME

       XtSetSensitive, XtIsSensitive - set and check a widget's sensitivity state

SYNTAX

       #include <X11/Intrinsic.h>

       void XtSetSensitive(Widget w, Boolean sensitive);

       Boolean XtIsSensitive(Widget w);

ARGUMENTS

       sensitive Specifies a Boolean value that indicates whether the widget should receive keyboard and pointer
                 events.

       w         Specifies the widget.

DESCRIPTION

       The  XtSetSensitive  function  first  calls  XtSetValues  on  the  current  widget  with an argument list
       specifying that the sensitive field should change to the new value.  It then recursively  propagates  the
       new   value   down  the  managed  children  tree  by  calling  XtSetValues  on  each  child  to  set  the
       ancestor_sensitive to the new value if the new values for sensitive and  the  child's  ancestor_sensitive
       are not the same.

       XtSetSensitive  calls  XtSetValues  to  change  sensitive and ancestor_sensitive.  Therefore, when one of
       these changes, the widget's set_values procedure should take whatever display  actions  are  needed  (for
       example, greying out or stippling the widget).

       XtSetSensitive  maintains  the invariant that if parent has either sensitive or ancestor_sensitive False,
       then all children have ancestor_sensitive False.

       The XtIsSensitive function returns True or False to indicate whether or not user input events  are  being
       dispatched.   If  both  core.sensitive  and core.ancestor_sensitive are True, XtIsSensitive returns True;
       otherwise, it returns False.

SEE ALSO

       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11                                       libXt 1.2.1                                 XtSetSensitive(3)