GTK图形化界面详细参考手册

General

General — Library initialization and miscellaneous functions

GTK 参考手册

Synopsis

#include <gdk/gdk.h>

void gdk_init (gint *argc,

gchar ***argv);

gboolean gdk_init_check (gint *argc,

void gdk_exit (gint error_code);

void gdk_notify_startup_complete (void);

void gdk_notify_startup_complete_with_id (const gchar *startup_id);

const char * gdk_get_program_class (void);

void gdk_set_program_class (const char *program_class);

gchar* gdk_get_display (void);

void gdk_flush (void);

gint gdk_screen_width (void);

gint gdk_screen_height (void);

gint gdk_screen_width_mm (void);

guint32 time_);

enum GdkGrabStatus;

void gdk_pointer_ungrab (guint32 time_);

gboolean gdk_pointer_is_grabbed (void);

void gdk_set_double_click_time (guint msec);

GdkGrabStatus gdk_keyboard_grab (GdkWindow *window,

gboolean owner_events,

guint32 time_);

void gdk_keyboard_ungrab (guint32 time_);

void gdk_beep (void);

Description

This section describes the GDK initialization functions and miscellaneous utility functions.

Details

gdk_init ()

void gdk_init (gint *argc,

gchar ***argv);

Initializes the GDK library and connects to the X server. If initialization fails, a warning message

is output and the application terminates with a call to exit(1).

Any arguments used by GDK are removed from the array and argc and argv are updated

accordingly.

gchar ***argv);

Initialize the library for use.

Arguments: "argc" is the number of arguments. "argv" is an array of strings.

Results: "argc" and "argv" are modified to reflect any arguments which were not handled. (Such

arguments should either be handled by the application or dismissed). If initialization fails, returns

FALSE, otherwise TRUE.

Side effects: The library is initialized.

--------------------------------------------------------------

Initializes the GDK library and connects to the X server, returning TRUE on success.

Any arguments used by GDK are removed from the array and argc and argv are updated

GTK+ initializes GDK in gtk_init() and so this function is not usually needed by GTK+

applications.

gchar ***argv);

Parse command line arguments, and store for future use by calls to gdk_display_open().

Any arguments used by GDK are removed from the array and argc and argv are updated

accordingly.

You shouldn't call this function explicitely if you are using gtk_init(), gtk_init_check(), gdk_init(),

or gdk_init_check().

argc9: the number of command line arguments.

argv9: the array of command line arguments.

Since 2.2

gdk_get_display_arg_name ()

Since 2.2

gdk_set_locale ()

gchar* gdk_set_locale (void);

Initializes the support for internationalization by calling the setlocale() system call. This function

is called by gtk_set_locale() and so GTK+ applications should use that instead.

The locale to use is determined by the LANG environment variable, so to run an application in a

certain locale you can do something like this:

export LANG="fr"

... run application ...

If the locale is not supported by X then it is reset to the standard "C" locale.

management and the Inter-Client Communication Conventions Manual (ICCCM) for information

on the WM_CLIENT_LEADER property. (Both documents are part of the X Window System

distribution.)

sm_client_id9:

NULL to remove the property.

gdk_exit ()

void gdk_exit (gint error_code);

Warning

gdk_exit is deprecated and should not be used in newly-written code.

Exits the application using the exit() system call.

error_code9: the error code to pass to the exit() call.

gdk_notify_startup_complete ()

void gdk_notify_startup_complete (void);

Indicates to the GUI environment that the application has finished loading. If the applications

opens windows, this function is normally called after opening the application's initial set of

windows.

identifier.

GTK+ will call this function automatically for GtkWindow with custom startup-notification

identifier unless gtk_window_set_auto_startup_notification() is called to disable that feature.

startup_id9: a startup-notification identifier, for which notification process should be completed

Since 2.12

gdk_get_program_class ()

const char * gdk_get_program_class (void);

Gets the program class. Unless the program class has explicitly been set with

gdk_set_program_class() or with the --class commandline option, the default value is the program

name (determined with g_get_prgname()) with the first character converted to uppercase.

WM_CLASS property on toplevel windows; see the ICCCM.

program_class9: a string.

gchar* gdk_get_display (void);

Gets the name of the display, which usually comes from the DISPLAY environment variable or

the --display command line option.

gdk_flush ()

void gdk_flush (void);

Flushes the X output buffer and waits until all requests have been processed by the server. This is

rarely needed by applications. It's main use is for trapping X errors with gdk_error_trap_push()

and gdk_error_trap_pop().

gdk_screen_width ()

gint gdk_screen_width (void);

Returns the width of the default screen in pixels.

Returns9: the width of the default screen in pixels.

gdk_screen_height ()

gint gdk_screen_height (void);

Returns the height of the default screen in pixels.

Returns9: the height of the default screen in pixels.