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XtAppAddBlockHook(3Xt)


X11R6


NAME

  XtAppAddBlockHook, XtRemoveBlockHook - register a block hook procedure


SYNOPSIS

  XtBlockHookId XtAppAddBlockHook(app_context, proc, client_data)
	  XtAppContext app_context;
	  XtBlockHookProc proc;
	  XtPointer client_data;

  void XtRemoveBlockHook(idFP)
	  XtBlockHookId id;


ARGUMENTS

  app_context
      Specifies the application context.

  proc
      Specifies the block hook procedure.

  num_args
      Specifies the application-specific data to be passed to the block hook.


DESCRIPTION

  XtAppAddBlockHook registers the specified procedure and returns an
  identifier for it. The hook is called at any time in the future when the
  Intrinsics are about to block pending some input.

  Block hook procedures are removed automatically and the XtBlockHookId is
  destroyed when the application context in which they were added is
  destroyed.

  XtRemoveBlockHook removes the specified block hook procedure from the list
  in which it was registered.


SEE ALSO

  X Toolkit Intrinsics -- C Language Interface

  Xlib -- C Language X Interface

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