NAME

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

SYNTAX

       Widget  XtOpenApplication(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(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, the specified  widget_class,  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

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

X Version 11                                       libXt 1.1.5                              XtOpenApplication(3)