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NAME

       XtAppInitialize, XtVaAppInitialize - initialize, open, or close a
       display

SYNTAX

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

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

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.

       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 XtAppInitialize 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 XtAppInitialize 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(3), XtVaOpenApplication(3)
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface



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