XtOpenApplication(3Xt)XtOpenApplication(3Xt)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
Specifies the application context. Specifies the class name of this
application, which usually is the generic name for all instances of
this application. 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. Specifies the number of entries in the options
list. Specifies a pointer to the number of command line parameters.
Specifies the command line parameters. Specifies resource values to be
used if the application class resource file cannot be opened or read,
or NULL. Specifies the widget class of the shell to be created. Spec‐
ifies the argument list to override any other resource specification
for the created shell widget. 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, widget_class applicationShellWid‐
getClass, 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 fall‐
back_resources is non-NULL, XtAppSetFallbackResources is called with
the value prior to calling XtOpenDisplay.
XtAppInitialize and XtVaAppInitialize have been superceded by XtOpenAp‐
plication and XtVaOpenApplication respectively.
SEE ALSOXtOpenApplication(3Xt), XtVaOpenApplication(3Xt)
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface
XtOpenApplication(3Xt)
