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252 lines
7.3 KiB
252 lines
7.3 KiB
/* This file is part of the KDE libraries
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Copyright (C) 1999 Sirtaj Singh Kanq <taj@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef _KGLOBAL_H
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#define _KGLOBAL_H
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#include "tdelibs_export.h"
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#include <kinstance.h> // KDE4: class KInstance is enough here
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class KCharsets;
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class KConfig;
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class KSharedConfig;
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class KIconLoader;
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class TDEHardwareDevices;
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class TDEGlobalNetworkManager;
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class KLocale;
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class KStandardDirs;
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class KStaticDeleterBase;
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class KStaticDeleterList;
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class KStringDict;
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class TQString;
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/**
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* Access to the KDE global objects.
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* KGlobal provides you with pointers of many central
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* objects that exist only once in the process. It is also
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* responsible for managing instances of KStaticDeleterBase.
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*
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* @see KStaticDeleterBase
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* @author Sirtaj Singh Kang (taj@kde.org)
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*/
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class TDECORE_EXPORT KGlobal
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{
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public:
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/**
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* Returns the global instance. There is always at least
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* one instance of a component in one application (in most
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* cases the application itself).
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* @return the global instance
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*/
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static KInstance *instance();
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/**
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* Returns the application standard dirs object.
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* @return the global standard dir object
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*/
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static KStandardDirs *dirs();
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/**
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* Returns the general config object.
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* @return the global configuration object.
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*/
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static KConfig *config();
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/**
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* Returns the general config object.
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* @return the global configuration object.
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*/
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static KSharedConfig *sharedConfig();
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/**
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* Returns an iconloader object.
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* @return the global iconloader object
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*/
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static KIconLoader *iconLoader();
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/**
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* Returns a TDEHardwareDevices object.
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* @return the global hardware devices object
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*/
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static TDEHardwareDevices *hardwareDevices();
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/**
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* Returns a TDEGlobalNetworkManager object.
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* @return the global network manager object
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*/
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static TDEGlobalNetworkManager *networkManager();
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/**
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* Returns the global locale object.
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* @return the global locale object
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*/
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static KLocale *locale();
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/**
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* The global charset manager.
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* @return the global charset manager
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*/
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static KCharsets *charsets();
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/**
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* Creates a static TQString.
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*
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* To be used inside functions(!) like:
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* \code
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* static const TQString &myString = KGlobal::staticQString("myText");
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* \endcode
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*
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* !!! Do _NOT_ use: !!!
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* \code
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* static TQString myString = KGlobal::staticQString("myText");
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* \endcode
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* This creates a static object (instead of a static reference)
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* and as you know static objects are EVIL.
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* @param str the string to create
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* @return the static string
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*/
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static const TQString &staticQString(const char *str);
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/**
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* Creates a static TQString.
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*
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* To be used inside functions(!) like:
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* \code
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* static const TQString &myString = KGlobal::staticQString(i18n("My Text"));
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* \endcode
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*
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* !!! Do _NOT_ use: !!!
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* \code
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* static TQString myString = KGlobal::staticQString(i18n("myText"));
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* \endcode
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* This creates a static object (instead of a static reference)
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* and as you know static objects are EVIL.
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* @param str the string to create
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* @return the static string
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*/
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static const TQString &staticQString(const TQString &str);
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/**
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* Registers a static deleter.
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* @param d the static deleter to register
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* @see KStaticDeleterBase
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* @see KStaticDeleter
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*/
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static void registerStaticDeleter(KStaticDeleterBase *d);
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/**
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* Unregisters a static deleter.
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* @param d the static deleter to unregister
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* @see KStaticDeleterBase
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* @see KStaticDeleter
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*/
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static void unregisterStaticDeleter(KStaticDeleterBase *d);
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/**
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* Calls KStaticDeleterBase::destructObject() on all
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* registered static deleters and unregisters them all.
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* @see KStaticDeleterBase
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* @see KStaticDeleter
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*/
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static void deleteStaticDeleters();
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//private:
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static KStringDict *_stringDict;
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static KInstance *_instance;
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static KLocale *_locale;
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static KCharsets *_charsets;
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static KStaticDeleterList *_staticDeleters;
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/**
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* The instance currently active (useful in a multi-instance
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* application, such as a KParts application).
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* Don't use this - it's mainly for KAboutDialog and KBugReport.
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* @internal
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*/
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static void setActiveInstance(KInstance *d);
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static KInstance *activeInstance() { return _activeInstance; }
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static KInstance *_activeInstance;
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};
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/**
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* \relates KGlobal
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* A typesafe function to find the minimum of the two arguments.
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*/
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#define KMIN(a,b) kMin(a,b)
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/**
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* \relates KGlobal
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* A typesafe function to find the maximum of the two arguments.
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*/
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#define KMAX(a,b) kMax(a,b)
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/**
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* \relates KGlobal
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* A typesafe function to determine the absolute value of the argument.
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*/
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#define KABS(a) kAbs(a)
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/**
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* \relates KGlobal
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* A typesafe function that returns x if it's between low and high values.
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* low if x is smaller than then low and high if x is bigger than high.
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*/
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#define KCLAMP(x,low,high) kClamp(x,low,high)
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// XXX KDE4: Make kMin, kMax and kClamp return "T" instead of "const T &"!
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template<class T>
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inline const T& kMin (const T& a, const T& b) { return a < b ? a : b; }
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template<class T>
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inline const T& kMax (const T& a, const T& b) { return b < a ? a : b; }
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template<class T>
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inline T kAbs (const T& a) { return a < 0 ? -a : a; }
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template<class T>
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inline const T& kClamp( const T& x, const T& low, const T& high )
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{
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if ( x < low ) return low;
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else if ( high < x ) return high;
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else return x;
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}
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/**
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* Locale-independent tqstricmp. Use this for comparing ascii keywords
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* in a case-insensitive way.
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* tqstricmp fails with e.g. the Turkish locale where 'I'.lower() != 'i'
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* @since 3.4
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*/
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int TDECORE_EXPORT kasciistricmp( const char *str1, const char *str2 );
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/**
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* \mainpage The KDE Core Functionality Library
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*
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* All KDE programs use this library to provide basic functionality such
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* as the configuration system, IPC, internationalization and locale
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* support, site-independent access to the filesystem and a large number
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* of other (but no less important) things.
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*
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* All KDE applications should link to the tdecore library. Also, using a
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* KApplication derived class instead of TQApplication is almost
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* mandatory if you expect your application to behave nicely within the
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* KDE environment.
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*/
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#endif // _KGLOBAL_H
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