XtOpenApplication(3XX)Version 11 (Release 6XtOpenApplication(3Xt)
NAME
XtOpenApplication, XtVaOpenApplication - initialize, open,
or close a display
SYNTAX
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
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XtOpenApplication(3XX)Version 11 (Release 6XtOpenApplication(3Xt)
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 NULL-terminated variable-length
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 appcation_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.
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
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