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XtOpenApplication(3Xt)


X11R6


NAME

  XtOpenApplication, XtVaOpenApplication - initialize, open, or close a
  display


SYNOPSIS

  Widget XtOpenApplication(app_context_return, application_class, options,
  num_options, argc_in_out, argv_in_out, fallback_resources, widget_class,
  args, num_args)
	  XtAppContext app_context_return;
	  String application_class;
	  XrmOptionDescRec* options;
	  Cardinal num_options;
	  int* argc_in_out;
	  String* argv_in_out;
	  String* fallback_resources;
	  WidgetClass widget_class;
	  ArgList args;
	  Cardinal num_args;

  Widget XtVaOpenApplication(app_context_return, application_class, options,
  num_options, argc_in_out, argv_in_out, fallback_resources, widget_class,
  ...)
	  XtAppContext app_context_return;
	  String application_class;
	  XrmOptionDescRec* options;
	  Cardinal num_options;
	  int* argc_in_out;
	  String* argv_in_out;
	  String* fallback_resources;
	  WidgetClass widget_class;


ARGUMENTS

  app_context_return
      Specifies the application context.

  application_class
      Specifies the class name of this application, which usually is the
      generic name for all instances of this application.

  options
      Specifies how to parse the command line for any application-specific
      resources. The options argument is passed as a parameter to
      XrmParseCommand. For further information, see Xlib -- C Language X
      Interface.

  num_options
      Specifies the number of entries in the options list.

  argc_in_out
      Specifies a pointer to the number of command line parameters.

  argv_in_out
      Specifies the command line parameters.

  fallback_resources
      Specifies resource values to be used if the application class resource
      file cannot be opened or read, or NULL.

  widget_class
      Specifies the widget class of the shell to be created.

  args
      Specifies the argument list to override any other resource
      specification for the created shell widget.

  num_args
      Specifies the number of entries in the argument list.

  ... Specifies the variable argument list to override any other resource
      specification for the created shell widget.


DESCRIPTION

  The XtOpenApplication function calls XtToolkitInitialize followed by
  XtCreateApplicationContext, then calls XtOpenDisplay with display_string
  NULL and application_name NULL, and finally calls XtAppCreateShell with
  application_name NULL, widget_class applicationShellWidgetClass, and the
  specified args and num_args and returns the created shell. The modified
  argc and argv returned by XtDisplayInitialize are returned in argc_in_out
  and argv_in_out.  If app_context_return is not NULL, the created
  application context is also returned. If the display specified by the
  command line cannot be opened, an error message is issued and
  XtOpenApplication terminates the application. If fallback_resources is
  non-NULL, XtAppSetFallbackResources is called with the value prior to
  calling XtOpenDisplay.

  XtAppInitialize and XtVaAppInitialize have been superceded by
  XtOpenApplication and XtVaOpenApplication respectively.


SEE ALSO

  XtOpenApplication(3Xt), XtVaOpenApplication(3Xt)

  X Toolkit Intrinsics -- C Language Interface

  Xlib -- C Language X Interface

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