コード例 #1
0
ファイル: testerrors.c プロジェクト: BYC/gtk
gint
main (gint argc, gchar *argv[])
{
  GdkDisplay *extra_display;

  gtk_init (&argc, &argv);

  test_error_trapping (gdk_display_get_default ());

  extra_display = gdk_display_open (NULL);
  test_error_trapping (extra_display);
  gdk_display_close (extra_display);

  test_error_trapping (gdk_display_get_default ());

  /* open a display with a trap pushed and see if we
   * get confused
   */
  gdk_error_trap_push ();
  gdk_error_trap_push ();

  extra_display = gdk_display_open (NULL);
  test_error_trapping (extra_display);
  gdk_display_close (extra_display);

  gdk_error_trap_pop_ignored ();
  gdk_error_trap_pop_ignored ();

  test_error_trapping (gdk_display_get_default ());

  /* reassure us that the tests ran. */
  g_print("All errors properly trapped.\n");

  return 0;
}
コード例 #2
0
ファイル: changedisplay.c プロジェクト: Aridna/gtk2
/* Called when the user clicks on the "Close" button in the
 * "Display" frame. Closes the selected display.
 */
static void
close_display_cb (GtkWidget         *button,
		  ChangeDisplayInfo *info)
{
  if (info->current_display)
    gdk_display_close (info->current_display);
}
コード例 #3
0
ファイル: sendpraat.c プロジェクト: Crisil/praat
char *sendpraat (void *display, const char *programName, long timeOut, const char *text) {
	char nativeProgramName [100];
	#if gtk
		char *home, pidFileName [256], messageFileName [256];
		FILE *pidFile;
		long pid, wid = 0;
	#elif win
		char homeDirectory [256], messageFileName [256], windowName [256];
		HWND window;
		(void) display;
		(void) timeOut;
	#elif mac
		AEDesc programDescriptor;
		AppleEvent event, reply;
		OSStatus err;
		UInt32 signature;
		(void) display;
	#endif

	/*
	 * Clean up from an earlier call.
	 */
	errorMessage [0] = '\0';

	/*
	 * Handle case differences.
	 */
	strcpy (nativeProgramName, programName);
	#if gtk
		nativeProgramName [0] = tolower (nativeProgramName [0]);
	#else
		nativeProgramName [0] = toupper (nativeProgramName [0]);
	#endif

	/*
	 * If the text is going to be sent in a file, create its name.
	 * The file is going to be written into the preferences directory of the receiving program.
	 * On Unix, the name will be something like /home/jane/.praat-dir/message.
	 * On Windows, the name will be something like C:\Users\Jane\Praat\Message.txt,
	 * or C:\Windows\Praat\Message.txt on older systems.
	 * On Macintosh, the text is NOT going to be sent in a file.
	 */
	#if gtk
		if ((home = getenv ("HOME")) == NULL) {
			sprintf (errorMessage, "HOME environment variable not set.");
			return errorMessage;
		}
		sprintf (messageFileName, "%s/.%s-dir/message", home, programName);
	#elif win
		if (GetEnvironmentVariableA ("USERPROFILE", homeDirectory, 255)) {
			;   /* Ready. */
		} else if (GetEnvironmentVariableA ("HOMEDRIVE", homeDirectory, 255)) {
			GetEnvironmentVariableA ("HOMEPATH", homeDirectory + strlen (homeDirectory), 255);
		} else {
			GetWindowsDirectoryA (homeDirectory, 255);
		}
		sprintf (messageFileName, "%s\\%s\\Message.txt", homeDirectory, programName);
	#endif

	/*
	 * Save the message file (Unix and Windows only).
	 */
	#if gtk || win
	{
		FILE *messageFile;
		if ((messageFile = fopen (messageFileName, "w")) == NULL) {
			sprintf (errorMessage, "Cannot create message file \"%s\" "
				"(no privilege to write to directory, or disk full, or program is not called %s).\n", messageFileName, programName);
			return errorMessage;
		}
		#if gtk
			if (timeOut)
				fprintf (messageFile, "#%ld\n", (long) getpid ());   /* Write own process ID for callback. */
		#endif
		fprintf (messageFile, "%s", text);
		fclose (messageFile);
	}
	#endif

	/*
	 * Where shall we send the message?
	 */
	#if gtk
		/*
		 * Get the process ID and the window ID of a running Praat-shell program.
		 */
		sprintf (pidFileName, "%s/.%s-dir/pid", home, programName);
		if ((pidFile = fopen (pidFileName, "r")) == NULL) {
			sprintf (errorMessage, "Program %s not running.", programName);
			return errorMessage;
		}
		if (fscanf (pidFile, "%ld%ld", & pid, & wid) < 1) {
			fclose (pidFile);
			sprintf (errorMessage, "Program %s not running, or disk has been full.", programName);
			return errorMessage;
		}
		fclose (pidFile);
	#elif win
		/*
		 * Get the window handle of the "Objects" window of a running Praat-shell program.
		 */
		sprintf (windowName, "PraatShell1 %s", programName);
		window = FindWindowA (windowName, NULL);
		if (! window) {
			sprintf (errorMessage, "Program %s not running (or an old version).", programName);
			return errorMessage;
		}
	#elif mac
		/*
		 * Convert the program name to a Macintosh signature.
		 * I know of no system routine for this, so I'll just translate the two most common names:
		 */
		if (! strcmp (programName, "praat") || ! strcmp (programName, "Praat") || ! strcmp (programName, "PRAAT"))
			signature = 'PpgB';
		else if (! strcmp (programName, "als") || ! strcmp (programName, "Als") || ! strcmp (programName, "ALS"))
			signature = 'CclA';
		else
			signature = 0;
		AECreateDesc (typeApplSignature, & signature, 4, & programDescriptor);
	#endif

	/*
	 * Send the message.
	 */
	#if gtk
		/*
		 * Be ready to receive notification of completion.
		 */
		if (timeOut)
			signal (SIGUSR2, handleCompletion);
		/*
		 * Notify running program.
		 */
		if (wid != 0) {   /* Praat shell version October 21, 1998 or later? Send event to window. */
			/*
			 * Notify main window.
			 */
			GdkEventClient gevent;
			g_type_init ();
			int displaySupplied = display != NULL;
			if (! displaySupplied) {
				display = gdk_display_open (getenv ("DISPLAY"));   /* GdkDisplay* */
				if (display == NULL) {
					sprintf (errorMessage, "Cannot open display %s", getenv ("DISPLAY"));
					return errorMessage;
				}
			}
			gevent. type = GDK_CLIENT_EVENT;
			gevent. window = 0;
			gevent. send_event = 1;
			gevent. message_type = gdk_atom_intern_static_string ("SENDPRAAT");
			gevent. data_format = 8;
			if (! gdk_event_send_client_message_for_display (display, (GdkEvent *) & gevent, wid)) {
				if (! displaySupplied) gdk_display_close (display);
				sprintf (errorMessage, "Cannot send message to %s (window %ld). "
					"The program %s may have been started by a different user, "
					"or may have crashed.", programName, wid, programName);
				return errorMessage;
			}
			if (! displaySupplied) gdk_display_close (display);
		}
		/*
		 * Wait for the running program to notify us of completion,
		 * but do not wait for more than 'timeOut' seconds.
		 */
		if (timeOut) {
			signal (SIGALRM, handleTimeOut);
			alarm (timeOut);
			theTimeOut = timeOut;   /* Hand an argument to handleTimeOut () in a static variable. */
			errorMessage [0] = '\0';
			pause ();
			if (errorMessage [0] != '\0') return errorMessage;
		}
	#elif win
		/*
		 * Notify the running program by sending a WM_USER message to its main window.
		 */
		if (SendMessage (window, WM_USER, 0, 0)) {
			sprintf (errorMessage, "Program %s returns error.", programName);   /* BUG? */
			return errorMessage;
		}
	#elif mac
		/*
		 * Notify the running program by sending it an Apple event of the magic class 758934755.
		 */
		AECreateAppleEvent (758934755, 0, & programDescriptor, kAutoGenerateReturnID, 1, & event);
		AEPutParamPtr (& event, 1, typeChar, text, strlen (text) + 1);
		#ifdef __MACH__
			err = AESendMessage (& event, & reply,
				( timeOut == 0 ? kAENoReply : kAEWaitReply ) | kAECanInteract | kAECanSwitchLayer,
				timeOut == 0 ? kNoTimeOut : 60 * timeOut);
		#else
			err = AESend (& event, & reply,
				( timeOut == 0 ? kAENoReply : kAEWaitReply ) | kAECanInteract | kAECanSwitchLayer,
				kAENormalPriority, timeOut == 0 ? kNoTimeOut : 60 * timeOut, NULL, NULL);
		#endif
		if (err != noErr) {
			if (err == procNotFound || err == connectionInvalid)
				sprintf (errorMessage, "Could not send message to program \"%s\".\n"
					"The program is probably not running (or an old version).", programName);
			else if (err == errAETimeout)
				sprintf (errorMessage, "Message to program \"%s\" timed out "
					"after %ld seconds, before completion.", programName, timeOut);
			else
				sprintf (errorMessage, "Unexpected sendpraat error %d.\nNotify the author.", err);
		}
		AEDisposeDesc (& programDescriptor);
		AEDisposeDesc (& event);
		AEDisposeDesc (& reply);
	#endif

	/*
	 * Notify the caller of success (NULL pointer) or failure (string with an error message).
	 */
	return errorMessage [0] == '\0' ? NULL : errorMessage;
}
コード例 #4
0
ファイル: rbgdkdisplay.c プロジェクト: Mazwak/ruby-gnome2
static VALUE
rg_close(VALUE self)
{
    gdk_display_close(_SELF(self));
    return self;
}
コード例 #5
0
ファイル: gdk_Display.cpp プロジェクト: Klaim/falcon
/*#
    @method close GdkDisplay
    @brief Closes the connection to the windowing system for the given display, and cleans up associated resources.
 */
FALCON_FUNC Display::close( VMARG )
{
    NO_ARGS
    gdk_display_close( GET_DISPLAY( vm->self() ) );
}