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XtOpenApplication(3)             XT FUNCTIONS             XtOpenApplication(3)




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 dis-
       play_string NULL and application_name NULL, and finally calls XtAppCre-
       ateShell with application_name NULL, the specified widget_class, and
       the specified args and num_args and returns the created shell. The mod-
       ified 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 XtOpen-
       Application and XtVaOpenApplication respectively.


SEE ALSO

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



X Version 11                      libXt 1.0.5             XtOpenApplication(3)

Mac OS X 10.6 X11 - Generated Sun Mar 7 12:33:09 CST 2010
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