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XtSetSensitive(3Xt)
X11R6
NAME
  XtSetSensitive, XtIsSensitive - set and check a widget's sensitivity state

SYNOPSIS
  void XtSetSensitive(w, sensitive)
	  Widget w;
	  Boolean sensitive;

  Boolean XtIsSensitive(w)
	  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

Index for Section 3Xt

Alphabetical listing for X

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