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82 lines
3.6 KiB
82 lines
3.6 KiB
/*
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* Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#import <Carbon/Carbon.h>
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#import <dlfcn.h>
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/*
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* Returns an array of CFDictionaryRef types, each of which contains information about one of the processes.
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* The processes are ordered in front to back, i.e. in the same order they appear when typing command + tab, from left to right.
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* See the ProcessInformationCopyDictionary function documentation for the keys used in the dictionaries.
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* If something goes wrong, then this function returns NULL.
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*/
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CFArrayRef CopyLaunchedApplicationsInFrontToBackOrder(void)
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{
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CFArrayRef (*_LSCopyApplicationArrayInFrontToBackOrder)(uint32_t sessionID) = NULL;
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void (*_LSASNExtractHighAndLowParts)(void const* asn, UInt32* psnHigh, UInt32* psnLow) = NULL;
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CFTypeID (*_LSASNGetTypeID)(void) = NULL;
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void *lsHandle = dlopen("/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/LaunchServices", RTLD_LAZY);
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if (!lsHandle) { return NULL; }
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_LSCopyApplicationArrayInFrontToBackOrder = (CFArrayRef(*)(uint32_t))dlsym(lsHandle, "_LSCopyApplicationArrayInFrontToBackOrder");
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_LSASNExtractHighAndLowParts = (void(*)(void const*, UInt32*, UInt32*))dlsym(lsHandle, "_LSASNExtractHighAndLowParts");
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_LSASNGetTypeID = (CFTypeID(*)(void))dlsym(lsHandle, "_LSASNGetTypeID");
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if (_LSCopyApplicationArrayInFrontToBackOrder == NULL || _LSASNExtractHighAndLowParts == NULL || _LSASNGetTypeID == NULL) { return NULL; }
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CFMutableArrayRef orderedApplications = CFArrayCreateMutable(kCFAllocatorDefault, 64, &kCFTypeArrayCallBacks);
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if (!orderedApplications) { return NULL; }
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CFArrayRef apps = _LSCopyApplicationArrayInFrontToBackOrder(-1);
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if (!apps) { CFRelease(orderedApplications); return NULL; }
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CFIndex count = CFArrayGetCount(apps);
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for (CFIndex i = 0; i < count; i++)
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{
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ProcessSerialNumber psn = {0, kNoProcess};
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CFTypeRef asn = CFArrayGetValueAtIndex(apps, i);
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if (CFGetTypeID(asn) == _LSASNGetTypeID())
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{
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_LSASNExtractHighAndLowParts(asn, &psn.highLongOfPSN, &psn.lowLongOfPSN);
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CFDictionaryRef processInfo = ProcessInformationCopyDictionary(&psn, kProcessDictionaryIncludeAllInformationMask);
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if (processInfo)
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{
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CFArrayAppendValue(orderedApplications, processInfo);
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CFRelease(processInfo);
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}
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}
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}
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CFRelease(apps);
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CFArrayRef result = CFArrayGetCount(orderedApplications) == 0 ? NULL : CFArrayCreateCopy(kCFAllocatorDefault, orderedApplications);
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CFRelease(orderedApplications);
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return result;
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}
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