mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-17 00:44:19 +00:00
926 lines
25 KiB
C++
926 lines
25 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-9 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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// (This file gets included by juce_win32_NativeCode.cpp, rather than being
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// compiled on its own).
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#if JUCE_INCLUDED_FILE
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//==============================================================================
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#ifndef CSIDL_MYMUSIC
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#define CSIDL_MYMUSIC 0x000d
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#endif
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#ifndef CSIDL_MYVIDEO
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#define CSIDL_MYVIDEO 0x000e
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#endif
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//==============================================================================
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const tchar File::separator = T('\\');
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const tchar* File::separatorString = T("\\");
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//==============================================================================
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bool juce_fileExists (const String& fileName,
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const bool dontCountDirectories) throw()
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{
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if (fileName.isEmpty())
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return false;
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const DWORD attr = GetFileAttributes (fileName);
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return dontCountDirectories ? ((attr & FILE_ATTRIBUTE_DIRECTORY) == 0)
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: (attr != 0xffffffff);
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}
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bool juce_isDirectory (const String& fileName) throw()
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{
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const DWORD attr = GetFileAttributes (fileName);
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return (attr != 0xffffffff)
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&& ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0);
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}
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bool juce_canWriteToFile (const String& fileName) throw()
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{
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const DWORD attr = GetFileAttributes (fileName);
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return ((attr & FILE_ATTRIBUTE_READONLY) == 0);
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}
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bool juce_setFileReadOnly (const String& fileName,
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bool isReadOnly) throw()
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{
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DWORD attr = GetFileAttributes (fileName);
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if (attr == 0xffffffff)
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return false;
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if (isReadOnly != juce_canWriteToFile (fileName))
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return true;
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if (isReadOnly)
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attr |= FILE_ATTRIBUTE_READONLY;
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else
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attr &= ~FILE_ATTRIBUTE_READONLY;
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return SetFileAttributes (fileName, attr) != FALSE;
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}
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bool File::isHidden() const throw()
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{
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return (GetFileAttributes (getFullPathName()) & FILE_ATTRIBUTE_HIDDEN) != 0;
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}
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//==============================================================================
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bool juce_deleteFile (const String& fileName) throw()
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{
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if (juce_isDirectory (fileName))
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return RemoveDirectory (fileName) != 0;
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return DeleteFile (fileName) != 0;
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}
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bool File::moveToTrash() const throw()
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{
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if (! exists())
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return true;
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SHFILEOPSTRUCT fos;
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zerostruct (fos);
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// The string we pass in must be double null terminated..
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String doubleNullTermPath (getFullPathName() + " ");
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TCHAR* p = (TCHAR*) (const TCHAR*) doubleNullTermPath;
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p [getFullPathName().length()] = 0;
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fos.wFunc = FO_DELETE;
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fos.hwnd = (HWND) 0;
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fos.pFrom = p;
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fos.pTo = NULL;
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fos.fFlags = FOF_ALLOWUNDO | FOF_NOERRORUI | FOF_SILENT | FOF_NOCONFIRMATION
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| FOF_NOCONFIRMMKDIR | FOF_RENAMEONCOLLISION;
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return SHFileOperation (&fos) == 0;
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}
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bool juce_moveFile (const String& source, const String& dest) throw()
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{
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return MoveFile (source, dest) != 0;
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}
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bool juce_copyFile (const String& source, const String& dest) throw()
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{
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return CopyFile (source, dest, false) != 0;
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}
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void juce_createDirectory (const String& fileName) throw()
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{
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if (! juce_fileExists (fileName, true))
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{
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CreateDirectory (fileName, 0);
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}
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}
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//==============================================================================
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// return 0 if not possible
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void* juce_fileOpen (const String& fileName, bool forWriting) throw()
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{
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HANDLE h;
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if (forWriting)
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{
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h = CreateFile (fileName, GENERIC_WRITE, FILE_SHARE_READ, 0,
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OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
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if (h != INVALID_HANDLE_VALUE)
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SetFilePointer (h, 0, 0, FILE_END);
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else
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h = 0;
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}
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else
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{
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h = CreateFile (fileName, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, 0,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, 0);
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if (h == INVALID_HANDLE_VALUE)
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h = 0;
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}
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return (void*) h;
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}
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void juce_fileClose (void* handle) throw()
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{
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CloseHandle (handle);
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}
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//==============================================================================
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int juce_fileRead (void* handle, void* buffer, int size) throw()
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{
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DWORD num = 0;
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ReadFile ((HANDLE) handle, buffer, size, &num, 0);
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return num;
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}
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int juce_fileWrite (void* handle, const void* buffer, int size) throw()
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{
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DWORD num;
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WriteFile ((HANDLE) handle,
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buffer, size,
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&num, 0);
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return num;
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}
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int64 juce_fileSetPosition (void* handle, int64 pos) throw()
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{
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LARGE_INTEGER li;
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li.QuadPart = pos;
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li.LowPart = SetFilePointer ((HANDLE) handle,
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li.LowPart,
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&li.HighPart,
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FILE_BEGIN); // (returns -1 if it fails)
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return li.QuadPart;
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}
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int64 juce_fileGetPosition (void* handle) throw()
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{
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LARGE_INTEGER li;
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li.QuadPart = 0;
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li.LowPart = SetFilePointer ((HANDLE) handle,
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0, &li.HighPart,
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FILE_CURRENT); // (returns -1 if it fails)
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return jmax ((int64) 0, li.QuadPart);
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}
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void juce_fileFlush (void* handle) throw()
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{
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FlushFileBuffers ((HANDLE) handle);
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}
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int64 juce_getFileSize (const String& fileName) throw()
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{
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WIN32_FILE_ATTRIBUTE_DATA attributes;
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if (GetFileAttributesEx (fileName, GetFileExInfoStandard, &attributes))
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{
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return (((int64) attributes.nFileSizeHigh) << 32)
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| attributes.nFileSizeLow;
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}
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return 0;
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}
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//==============================================================================
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static int64 fileTimeToTime (const FILETIME* const ft) throw()
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{
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// tell me if this fails!
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static_jassert (sizeof (ULARGE_INTEGER) == sizeof (FILETIME));
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#if JUCE_GCC
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return (((const ULARGE_INTEGER*) ft)->QuadPart - 116444736000000000LL) / 10000;
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#else
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return (((const ULARGE_INTEGER*) ft)->QuadPart - 116444736000000000) / 10000;
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#endif
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}
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static void timeToFileTime (const int64 time, FILETIME* const ft) throw()
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{
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#if JUCE_GCC
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((ULARGE_INTEGER*) ft)->QuadPart = time * 10000 + 116444736000000000LL;
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#else
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((ULARGE_INTEGER*) ft)->QuadPart = time * 10000 + 116444736000000000;
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#endif
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}
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void juce_getFileTimes (const String& fileName,
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int64& modificationTime,
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int64& accessTime,
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int64& creationTime) throw()
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{
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WIN32_FILE_ATTRIBUTE_DATA attributes;
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if (GetFileAttributesEx (fileName, GetFileExInfoStandard, &attributes))
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{
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modificationTime = fileTimeToTime (&attributes.ftLastWriteTime);
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creationTime = fileTimeToTime (&attributes.ftCreationTime);
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accessTime = fileTimeToTime (&attributes.ftLastAccessTime);
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}
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else
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{
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creationTime = accessTime = modificationTime = 0;
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}
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}
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bool juce_setFileTimes (const String& fileName,
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int64 modificationTime,
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int64 accessTime,
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int64 creationTime) throw()
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{
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FILETIME m, a, c;
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if (modificationTime > 0)
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timeToFileTime (modificationTime, &m);
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if (accessTime > 0)
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timeToFileTime (accessTime, &a);
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if (creationTime > 0)
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timeToFileTime (creationTime, &c);
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void* const h = juce_fileOpen (fileName, true);
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bool ok = false;
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if (h != 0)
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{
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ok = SetFileTime ((HANDLE) h,
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(creationTime > 0) ? &c : 0,
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(accessTime > 0) ? &a : 0,
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(modificationTime > 0) ? &m : 0) != 0;
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juce_fileClose (h);
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}
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return ok;
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}
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//==============================================================================
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// return '\0' separated list of strings
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const StringArray juce_getFileSystemRoots() throw()
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{
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TCHAR buffer [2048];
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buffer[0] = 0;
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buffer[1] = 0;
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GetLogicalDriveStrings (2048, buffer);
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TCHAR* n = buffer;
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StringArray roots;
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while (*n != 0)
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{
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roots.add (String (n));
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while (*n++ != 0)
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{
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}
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}
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roots.sort (true);
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return roots;
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}
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//==============================================================================
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const String juce_getVolumeLabel (const String& filenameOnVolume,
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int& volumeSerialNumber) throw()
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{
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TCHAR n [4];
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n[0] = *(const TCHAR*) filenameOnVolume;
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n[1] = L':';
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n[2] = L'\\';
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n[3] = 0;
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TCHAR dest [64];
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DWORD serialNum;
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if (! GetVolumeInformation (n, dest, 64, (DWORD*) &serialNum, 0, 0, 0, 0))
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{
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dest[0] = 0;
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serialNum = 0;
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}
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volumeSerialNumber = serialNum;
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return String (dest);
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}
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static int64 getDiskSpaceInfo (String fn, const bool total) throw()
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{
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if (fn[1] == T(':'))
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fn = fn.substring (0, 2) + T("\\");
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ULARGE_INTEGER spc, tot, totFree;
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if (GetDiskFreeSpaceEx (fn, &spc, &tot, &totFree))
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return (int64) (total ? tot.QuadPart
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: spc.QuadPart);
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return 0;
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}
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int64 File::getBytesFreeOnVolume() const throw()
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{
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return getDiskSpaceInfo (getFullPathName(), false);
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}
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int64 File::getVolumeTotalSize() const throw()
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{
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return getDiskSpaceInfo (getFullPathName(), true);
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}
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//==============================================================================
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static unsigned int getWindowsDriveType (const String& fileName) throw()
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{
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TCHAR n[4];
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n[0] = *(const TCHAR*) fileName;
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n[1] = L':';
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n[2] = L'\\';
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n[3] = 0;
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return GetDriveType (n);
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}
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bool File::isOnCDRomDrive() const throw()
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{
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return getWindowsDriveType (getFullPathName()) == DRIVE_CDROM;
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}
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bool File::isOnHardDisk() const throw()
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{
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if (fullPath.isEmpty())
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return false;
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const unsigned int n = getWindowsDriveType (getFullPathName());
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if (fullPath.toLowerCase()[0] <= 'b'
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&& fullPath[1] == T(':'))
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{
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return n != DRIVE_REMOVABLE;
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}
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else
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{
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return n != DRIVE_CDROM && n != DRIVE_REMOTE;
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}
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}
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bool File::isOnRemovableDrive() const throw()
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{
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if (fullPath.isEmpty())
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return false;
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const unsigned int n = getWindowsDriveType (getFullPathName());
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return n == DRIVE_CDROM
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|| n == DRIVE_REMOTE
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|| n == DRIVE_REMOVABLE
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|| n == DRIVE_RAMDISK;
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}
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//==============================================================================
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#define MAX_PATH_CHARS (MAX_PATH + 256)
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static const File juce_getSpecialFolderPath (int type) throw()
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{
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WCHAR path [MAX_PATH_CHARS];
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if (SHGetSpecialFolderPath (0, path, type, 0))
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return File (String (path));
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return File::nonexistent;
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}
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const File JUCE_CALLTYPE File::getSpecialLocation (const SpecialLocationType type)
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{
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int csidlType = 0;
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switch (type)
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{
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case userHomeDirectory:
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csidlType = CSIDL_PROFILE;
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break;
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case userDocumentsDirectory:
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csidlType = CSIDL_PERSONAL;
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break;
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case userDesktopDirectory:
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csidlType = CSIDL_DESKTOP;
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break;
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case userApplicationDataDirectory:
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csidlType = CSIDL_APPDATA;
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break;
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case commonApplicationDataDirectory:
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csidlType = CSIDL_COMMON_APPDATA;
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break;
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case globalApplicationsDirectory:
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csidlType = CSIDL_PROGRAM_FILES;
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break;
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case userMusicDirectory:
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csidlType = CSIDL_MYMUSIC;
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break;
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case userMoviesDirectory:
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csidlType = CSIDL_MYVIDEO;
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break;
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case tempDirectory:
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{
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WCHAR dest [2048];
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dest[0] = 0;
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GetTempPath (2048, dest);
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return File (String (dest));
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}
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case invokedExecutableFile:
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case currentExecutableFile:
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case currentApplicationFile:
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{
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HINSTANCE moduleHandle = (HINSTANCE) PlatformUtilities::getCurrentModuleInstanceHandle();
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WCHAR dest [MAX_PATH_CHARS];
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dest[0] = 0;
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GetModuleFileName (moduleHandle, dest, MAX_PATH_CHARS);
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return File (String (dest));
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}
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break;
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default:
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jassertfalse // unknown type?
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return File::nonexistent;
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}
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return juce_getSpecialFolderPath (csidlType);
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}
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//==============================================================================
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const File File::getCurrentWorkingDirectory() throw()
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{
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WCHAR dest [MAX_PATH_CHARS];
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dest[0] = 0;
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GetCurrentDirectory (MAX_PATH_CHARS, dest);
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return File (String (dest));
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}
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bool File::setAsCurrentWorkingDirectory() const throw()
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{
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return SetCurrentDirectory (getFullPathName()) != FALSE;
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}
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|
|
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//==============================================================================
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|
const String File::getVersion() const throw()
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{
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String result;
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DWORD handle = 0;
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DWORD bufferSize = GetFileVersionInfoSize (getFullPathName(), &handle);
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void* buffer = juce_calloc (bufferSize);
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if (GetFileVersionInfo (getFullPathName(), 0, bufferSize, buffer))
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{
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VS_FIXEDFILEINFO* vffi;
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UINT len = 0;
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if (VerQueryValue (buffer, _T("\\"), (LPVOID*) &vffi, &len))
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{
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result.printf (T("%d.%d.%d.%d"),
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HIWORD (vffi->dwFileVersionMS),
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LOWORD (vffi->dwFileVersionMS),
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HIWORD (vffi->dwFileVersionLS),
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LOWORD (vffi->dwFileVersionLS));
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}
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}
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juce_free (buffer);
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return result;
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}
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|
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//==============================================================================
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const File File::getLinkedTarget() const throw()
|
|
{
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File result (*this);
|
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String p (getFullPathName());
|
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|
|
if (! exists())
|
|
p += T(".lnk");
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else if (getFileExtension() != T(".lnk"))
|
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return result;
|
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|
|
ComSmartPtr <IShellLink> shellLink;
|
|
if (SUCCEEDED (shellLink.CoCreateInstance (CLSID_ShellLink, CLSCTX_INPROC_SERVER)))
|
|
{
|
|
ComSmartPtr <IPersistFile> persistFile;
|
|
if (SUCCEEDED (shellLink->QueryInterface (IID_IPersistFile, (LPVOID*) &persistFile)))
|
|
{
|
|
if (SUCCEEDED (persistFile->Load ((const WCHAR*) p, STGM_READ))
|
|
&& SUCCEEDED (shellLink->Resolve (0, SLR_ANY_MATCH | SLR_NO_UI)))
|
|
{
|
|
WIN32_FIND_DATA winFindData;
|
|
WCHAR resolvedPath [MAX_PATH];
|
|
|
|
if (SUCCEEDED (shellLink->GetPath (resolvedPath, MAX_PATH, &winFindData, SLGP_UNCPRIORITY)))
|
|
result = File (resolvedPath);
|
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}
|
|
}
|
|
}
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|
|
|
return result;
|
|
}
|
|
|
|
|
|
//==============================================================================
|
|
template <class FindDataType>
|
|
static void getFindFileInfo (FindDataType& findData,
|
|
String& filename, bool* const isDir, bool* const isHidden,
|
|
int64* const fileSize, Time* const modTime, Time* const creationTime,
|
|
bool* const isReadOnly) throw()
|
|
{
|
|
filename = findData.cFileName;
|
|
|
|
if (isDir != 0)
|
|
*isDir = ((findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0);
|
|
|
|
if (isHidden != 0)
|
|
*isHidden = ((findData.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0);
|
|
|
|
if (fileSize != 0)
|
|
*fileSize = findData.nFileSizeLow + (((int64) findData.nFileSizeHigh) << 32);
|
|
|
|
if (modTime != 0)
|
|
*modTime = fileTimeToTime (&findData.ftLastWriteTime);
|
|
|
|
if (creationTime != 0)
|
|
*creationTime = fileTimeToTime (&findData.ftCreationTime);
|
|
|
|
if (isReadOnly != 0)
|
|
*isReadOnly = ((findData.dwFileAttributes & FILE_ATTRIBUTE_READONLY) != 0);
|
|
|
|
}
|
|
|
|
void* juce_findFileStart (const String& directory, const String& wildCard, String& firstResult,
|
|
bool* isDir, bool* isHidden, int64* fileSize,
|
|
Time* modTime, Time* creationTime, bool* isReadOnly) throw()
|
|
{
|
|
String wc (directory);
|
|
|
|
if (! wc.endsWithChar (File::separator))
|
|
wc += File::separator;
|
|
|
|
wc += wildCard;
|
|
|
|
WIN32_FIND_DATA findData;
|
|
HANDLE h = FindFirstFile (wc, &findData);
|
|
|
|
if (h != INVALID_HANDLE_VALUE)
|
|
{
|
|
getFindFileInfo (findData, firstResult, isDir, isHidden, fileSize,
|
|
modTime, creationTime, isReadOnly);
|
|
return h;
|
|
}
|
|
|
|
firstResult = String::empty;
|
|
return 0;
|
|
}
|
|
|
|
bool juce_findFileNext (void* handle, String& resultFile,
|
|
bool* isDir, bool* isHidden, int64* fileSize,
|
|
Time* modTime, Time* creationTime, bool* isReadOnly) throw()
|
|
{
|
|
WIN32_FIND_DATA findData;
|
|
|
|
if (handle != 0 && FindNextFile ((HANDLE) handle, &findData) != 0)
|
|
{
|
|
getFindFileInfo (findData, resultFile, isDir, isHidden, fileSize,
|
|
modTime, creationTime, isReadOnly);
|
|
return true;
|
|
}
|
|
|
|
resultFile = String::empty;
|
|
return false;
|
|
}
|
|
|
|
void juce_findFileClose (void* handle) throw()
|
|
{
|
|
FindClose (handle);
|
|
}
|
|
|
|
//==============================================================================
|
|
bool juce_launchFile (const String& fileName,
|
|
const String& parameters) throw()
|
|
{
|
|
HINSTANCE hInstance = 0;
|
|
|
|
JUCE_TRY
|
|
{
|
|
hInstance = ShellExecute (0, 0, fileName, parameters, 0, SW_SHOWDEFAULT);
|
|
}
|
|
JUCE_CATCH_ALL
|
|
|
|
return hInstance > (HINSTANCE) 32;
|
|
}
|
|
|
|
void File::revealToUser() const throw()
|
|
{
|
|
if (isDirectory())
|
|
startAsProcess();
|
|
else if (getParentDirectory().exists())
|
|
getParentDirectory().startAsProcess();
|
|
}
|
|
|
|
//==============================================================================
|
|
struct NamedPipeInternal
|
|
{
|
|
HANDLE pipeH;
|
|
HANDLE cancelEvent;
|
|
bool connected, createdPipe;
|
|
|
|
NamedPipeInternal()
|
|
: pipeH (0),
|
|
cancelEvent (0),
|
|
connected (false),
|
|
createdPipe (false)
|
|
{
|
|
cancelEvent = CreateEvent (0, FALSE, FALSE, 0);
|
|
}
|
|
|
|
~NamedPipeInternal()
|
|
{
|
|
disconnect();
|
|
|
|
if (pipeH != 0)
|
|
CloseHandle (pipeH);
|
|
|
|
CloseHandle (cancelEvent);
|
|
}
|
|
|
|
bool connect (const int timeOutMs)
|
|
{
|
|
if (! createdPipe)
|
|
return true;
|
|
|
|
if (! connected)
|
|
{
|
|
OVERLAPPED over;
|
|
zerostruct (over);
|
|
|
|
over.hEvent = CreateEvent (0, TRUE, FALSE, 0);
|
|
|
|
if (ConnectNamedPipe (pipeH, &over))
|
|
{
|
|
connected = false; // yes, you read that right. In overlapped mode it should always return 0.
|
|
}
|
|
else
|
|
{
|
|
const int err = GetLastError();
|
|
|
|
if (err == ERROR_IO_PENDING || err == ERROR_PIPE_LISTENING)
|
|
{
|
|
HANDLE handles[] = { over.hEvent, cancelEvent };
|
|
|
|
if (WaitForMultipleObjects (2, handles, FALSE,
|
|
timeOutMs >= 0 ? timeOutMs : INFINITE) == WAIT_OBJECT_0)
|
|
connected = true;
|
|
}
|
|
else if (err == ERROR_PIPE_CONNECTED)
|
|
{
|
|
connected = true;
|
|
}
|
|
}
|
|
|
|
CloseHandle (over.hEvent);
|
|
}
|
|
|
|
return connected;
|
|
}
|
|
|
|
void disconnect()
|
|
{
|
|
if (connected)
|
|
{
|
|
DisconnectNamedPipe (pipeH);
|
|
connected = false;
|
|
}
|
|
}
|
|
};
|
|
|
|
void NamedPipe::close()
|
|
{
|
|
NamedPipeInternal* const intern = (NamedPipeInternal*) internal;
|
|
delete intern;
|
|
internal = 0;
|
|
}
|
|
|
|
bool NamedPipe::openInternal (const String& pipeName, const bool createPipe)
|
|
{
|
|
close();
|
|
|
|
NamedPipeInternal* const intern = new NamedPipeInternal();
|
|
|
|
String file ("\\\\.\\pipe\\");
|
|
file += pipeName;
|
|
|
|
intern->createdPipe = createPipe;
|
|
|
|
if (createPipe)
|
|
{
|
|
intern->pipeH = CreateNamedPipe (file, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, 0,
|
|
PIPE_UNLIMITED_INSTANCES,
|
|
4096, 4096, 0, NULL);
|
|
}
|
|
else
|
|
{
|
|
intern->pipeH = CreateFile (file, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING,
|
|
FILE_FLAG_OVERLAPPED, 0);
|
|
}
|
|
|
|
if (intern->pipeH != INVALID_HANDLE_VALUE)
|
|
{
|
|
internal = intern;
|
|
return true;
|
|
}
|
|
|
|
delete intern;
|
|
return false;
|
|
}
|
|
|
|
int NamedPipe::read (void* destBuffer, int maxBytesToRead, int timeOutMilliseconds)
|
|
{
|
|
int bytesRead = -1;
|
|
bool waitAgain = true;
|
|
|
|
while (waitAgain && internal != 0)
|
|
{
|
|
NamedPipeInternal* const intern = (NamedPipeInternal*) internal;
|
|
waitAgain = false;
|
|
|
|
if (! intern->connect (timeOutMilliseconds))
|
|
break;
|
|
|
|
if (maxBytesToRead <= 0)
|
|
return 0;
|
|
|
|
OVERLAPPED over;
|
|
zerostruct (over);
|
|
over.hEvent = CreateEvent (0, TRUE, FALSE, 0);
|
|
|
|
unsigned long numRead;
|
|
|
|
if (ReadFile (intern->pipeH, destBuffer, maxBytesToRead, &numRead, &over))
|
|
{
|
|
bytesRead = (int) numRead;
|
|
}
|
|
else if (GetLastError() == ERROR_IO_PENDING)
|
|
{
|
|
HANDLE handles[] = { over.hEvent, intern->cancelEvent };
|
|
DWORD waitResult = WaitForMultipleObjects (2, handles, FALSE,
|
|
timeOutMilliseconds >= 0 ? timeOutMilliseconds
|
|
: INFINITE);
|
|
if (waitResult != WAIT_OBJECT_0)
|
|
{
|
|
// if the operation timed out, let's cancel it...
|
|
CancelIo (intern->pipeH);
|
|
WaitForSingleObject (over.hEvent, INFINITE); // makes sure cancel is complete
|
|
}
|
|
|
|
if (GetOverlappedResult (intern->pipeH, &over, &numRead, FALSE))
|
|
{
|
|
bytesRead = (int) numRead;
|
|
}
|
|
else if (GetLastError() == ERROR_BROKEN_PIPE && intern->createdPipe)
|
|
{
|
|
intern->disconnect();
|
|
waitAgain = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
waitAgain = internal != 0;
|
|
Sleep (5);
|
|
}
|
|
|
|
CloseHandle (over.hEvent);
|
|
}
|
|
|
|
return bytesRead;
|
|
}
|
|
|
|
int NamedPipe::write (const void* sourceBuffer, int numBytesToWrite, int timeOutMilliseconds)
|
|
{
|
|
int bytesWritten = -1;
|
|
NamedPipeInternal* const intern = (NamedPipeInternal*) internal;
|
|
|
|
if (intern != 0 && intern->connect (timeOutMilliseconds))
|
|
{
|
|
if (numBytesToWrite <= 0)
|
|
return 0;
|
|
|
|
OVERLAPPED over;
|
|
zerostruct (over);
|
|
|
|
over.hEvent = CreateEvent (0, TRUE, FALSE, 0);
|
|
|
|
unsigned long numWritten;
|
|
|
|
if (WriteFile (intern->pipeH, sourceBuffer, numBytesToWrite, &numWritten, &over))
|
|
{
|
|
bytesWritten = (int) numWritten;
|
|
}
|
|
else if (GetLastError() == ERROR_IO_PENDING)
|
|
{
|
|
HANDLE handles[] = { over.hEvent, intern->cancelEvent };
|
|
DWORD waitResult;
|
|
|
|
waitResult = WaitForMultipleObjects (2, handles, FALSE,
|
|
timeOutMilliseconds >= 0 ? timeOutMilliseconds
|
|
: INFINITE);
|
|
|
|
if (waitResult != WAIT_OBJECT_0)
|
|
{
|
|
CancelIo (intern->pipeH);
|
|
WaitForSingleObject (over.hEvent, INFINITE);
|
|
}
|
|
|
|
if (GetOverlappedResult (intern->pipeH, &over, &numWritten, FALSE))
|
|
{
|
|
bytesWritten = (int) numWritten;
|
|
}
|
|
else if (GetLastError() == ERROR_BROKEN_PIPE && intern->createdPipe)
|
|
{
|
|
intern->disconnect();
|
|
}
|
|
}
|
|
|
|
CloseHandle (over.hEvent);
|
|
}
|
|
|
|
return bytesWritten;
|
|
}
|
|
|
|
void NamedPipe::cancelPendingReads()
|
|
{
|
|
NamedPipeInternal* const intern = (NamedPipeInternal*) internal;
|
|
|
|
if (intern != 0)
|
|
SetEvent (intern->cancelEvent);
|
|
}
|
|
|
|
|
|
#endif
|