[NEW_FEATURE] Add the capacity to open x64 system files.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@692 f5eea248-9336-0410-98b8-ebc06183d4e3

PowerEditor/src/MISC/Common/precompiledHeaders.h

@@ -20,6 +20,8 @@
 
 // w/o precompiled headers file : 1 minute 55 sec
 
+#define _WIN32_WINNT 0x0501
+
 // C RunTime Header Files
 #include <stdio.h>
 #include <stdlib.h>

PowerEditor/src/Notepad_plus.cpp

@@ -142,6 +142,7 @@ Notepad_plus::~Notepad_plus()
 		delete _pTrayIco;
 }
 
+
 LRESULT Notepad_plus::init(HWND hwnd) 
 {
 	NppParameters *pNppParam = NppParameters::getInstance();

PowerEditor/src/NppIO.cpp

@@ -20,8 +20,10 @@
 #include "FileDialog.h"
 
 
+
 BufferID Notepad_plus::doOpen(const TCHAR *fileName, bool isReadOnly, int encoding)
 {
+	NppParameters *pNppParam = NppParameters::getInstance();
 	TCHAR longFileName[MAX_PATH];
 
 	::GetFullPathName(fileName, MAX_PATH, longFileName, NULL);
@@ -66,35 +68,45 @@ BufferID Notepad_plus::doOpen(const TCHAR *fileName, bool isReadOnly, int encodi
 		return BUFFER_INVALID;
 	}
 
+	bool isWow64Off = false;
+	if (!PathFileExists(longFileName))
+	{
+		pNppParam->safeWow64EnableWow64FsRedirection(FALSE);
+		isWow64Off = true;
+	}
 
-	
 	if (!PathFileExists(longFileName))
 	{
 		TCHAR str2display[MAX_PATH*2];
 		generic_string longFileDir(longFileName);
 		PathRemoveFileSpec(longFileDir);
 
+		bool isCreateFileSuccessful = false;
 		if (PathFileExists(longFileDir.c_str()))
 		{
 			wsprintf(str2display, TEXT("%s doesn't exist. Create it?"), longFileName);
-
 			if (::MessageBox(_pPublicInterface->getHSelf(), str2display, TEXT("Create new file"), MB_YESNO) == IDYES)
 			{
 				bool res = MainFileManager->createEmptyFile(longFileName);
-				if (!res) 
+				if (res)
+				{
+					isCreateFileSuccessful = true;
+				}
+				else
 				{
 					wsprintf(str2display, TEXT("Cannot create the file \"%s\""), longFileName);
 					::MessageBox(_pPublicInterface->getHSelf(), str2display, TEXT("Create new file"), MB_OK);
-					return BUFFER_INVALID;
 				}
 			}
-			else
-			{
-				return BUFFER_INVALID;
-			}
 		}
-		else
+
+		if (!isCreateFileSuccessful)
 		{
+			if (isWow64Off)
+			{
+				pNppParam->safeWow64EnableWow64FsRedirection(TRUE);
+				isWow64Off = false;
+			}
 			return BUFFER_INVALID;
 		}
 	}
@@ -113,6 +125,7 @@ BufferID Notepad_plus::doOpen(const TCHAR *fileName, bool isReadOnly, int encodi
 	}
 	
 	BufferID buffer = MainFileManager->loadFile(longFileName, NULL, encoding);
+
 	if (buffer != BUFFER_INVALID)
 	{
 		_isFileOpening = true;
@@ -149,8 +162,6 @@ BufferID Notepad_plus::doOpen(const TCHAR *fileName, bool isReadOnly, int encodi
 		// Notify plugins that current file is just opened
 		scnN.nmhdr.code = NPPN_FILEOPENED;
 		_pluginsManager.notify(&scnN);
-
-		return buffer;
 	}
 	else
 	{
@@ -181,8 +192,14 @@ BufferID Notepad_plus::doOpen(const TCHAR *fileName, bool isReadOnly, int encodi
 			scnN.nmhdr.code = NPPN_FILELOADFAILED;
 			_pluginsManager.notify(&scnN);
 		}
-		return BUFFER_INVALID;
 	}
+
+	if (isWow64Off)
+	{
+		pNppParam->safeWow64EnableWow64FsRedirection(TRUE);
+		isWow64Off = false;
+	}
+	return buffer;;
 }
 
 bool Notepad_plus::doReload(BufferID id, bool alert)

PowerEditor/src/Parameters.cpp

@@ -5167,3 +5167,28 @@ void NppParameters::addScintillaModifiedIndex(int index)
 	}
 }
 
+void NppParameters::safeWow64EnableWow64FsRedirection(BOOL Wow64FsEnableRedirection)
+{
+	HMODULE kernel = GetModuleHandle(TEXT("kernel32"));
+	if (kernel)
+	{
+		BOOL isWow64 = FALSE;
+		typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
+		LPFN_ISWOW64PROCESS IsWow64ProcessFunc = (LPFN_ISWOW64PROCESS) GetProcAddress(kernel,"IsWow64Process");
+
+		if (IsWow64ProcessFunc)
+		{
+			IsWow64ProcessFunc(GetCurrentProcess(),&isWow64);
+
+			if (isWow64)
+			{
+				typedef BOOL (WINAPI *LPFN_WOW64ENABLEWOW64FSREDIRECTION)(BOOL);
+				LPFN_WOW64ENABLEWOW64FSREDIRECTION Wow64EnableWow64FsRedirectionFunc = (LPFN_WOW64ENABLEWOW64FSREDIRECTION)GetProcAddress(kernel, "Wow64EnableWow64FsRedirection");
+				if (Wow64EnableWow64FsRedirectionFunc)
+				{
+					Wow64EnableWow64FsRedirectionFunc(Wow64FsEnableRedirection);
+				}
+			}
+		}
+	}
+}

PowerEditor/src/Parameters.h

@@ -1403,6 +1403,7 @@ public:
 	winVer getWinVersion() { return _winVersion;};
 	FindHistory & getFindHistory() {return _findHistory;};
 	bool _isFindReplacing; // an on the fly variable for find/replace functions
+	void safeWow64EnableWow64FsRedirection(BOOL Wow64FsEnableRedirection);
 
 #ifdef UNICODE
 	LocalizationSwitcher & getLocalizationSwitcher() {

PowerEditor/src/ScitillaComponent/Buffer.cpp

@@ -143,6 +143,15 @@ bool Buffer::checkFileState() {	//returns true if the status has been changed (i
 	if (_currentStatus == DOC_UNNAMED)	//unsaved document cannot change by environment
 		return false;
 
+	bool isWow64Off = false;
+	NppParameters *pNppParam = NppParameters::getInstance();
+	if (!PathFileExists(_fullPathName.c_str()))
+	{
+		pNppParam->safeWow64EnableWow64FsRedirection(FALSE);
+		isWow64Off = true;
+	}
+
+	bool isOK = false;
 	if (_currentStatus != DOC_DELETED && !PathFileExists(_fullPathName.c_str()))	//document has been deleted
 	{
 		_currentStatus = DOC_DELETED;
@@ -150,12 +159,10 @@ bool Buffer::checkFileState() {	//returns true if the status has been changed (i
 		_isDirty = true;	//dirty sicne no match with filesystem
 		_timeStamp = 0;
 		doNotify(BufferChangeStatus | BufferChangeReadonly | BufferChangeTimestamp);
-		return true;
+		isOK = true;
 	} 
-
+	else if (_currentStatus == DOC_DELETED && PathFileExists(_fullPathName.c_str())) 
-	if (_currentStatus == DOC_DELETED && PathFileExists(_fullPathName.c_str())) 
 	{	//document has returned from its grave
-
 		if (!generic_stat(_fullPathName.c_str(), &buf))
 		{
 			_isFileReadOnly = (bool)(!(buf.st_mode & _S_IWRITE));
@@ -163,33 +170,40 @@ bool Buffer::checkFileState() {	//returns true if the status has been changed (i
 			_currentStatus = DOC_MODIFIED;
 			_timeStamp = buf.st_mtime;
 			doNotify(BufferChangeStatus | BufferChangeReadonly | BufferChangeTimestamp);
-			return true;
+			isOK = true;
 		}
 	}
-
+	else if (!generic_stat(_fullPathName.c_str(), &buf))
-	if (!generic_stat(_fullPathName.c_str(), &buf))
 	{
 		int mask = 0;	//status always 'changes', even if from modified to modified
 		bool isFileReadOnly = (bool)(!(buf.st_mode & _S_IWRITE));
-		if (isFileReadOnly != _isFileReadOnly) {
+		if (isFileReadOnly != _isFileReadOnly)
+		{
 			_isFileReadOnly = isFileReadOnly;
 			mask |= BufferChangeReadonly;
 		}
-
+		if (_timeStamp != buf.st_mtime)
-		if (_timeStamp != buf.st_mtime) {
+		{
 			_timeStamp = buf.st_mtime;
 			mask |= BufferChangeTimestamp;
 			_currentStatus = DOC_MODIFIED;
 			mask |= BufferChangeStatus;	//status always 'changes', even if from modified to modified
 		}
 
-		if (mask != 0) {
+		if (mask != 0) 
+		{
 			doNotify(mask);
-			return true;
+			isOK = true;
 		}
-		return false;
+		isOK = false;
 	}
-	return false;
+	
+	if (isWow64Off)
+	{
+		pNppParam->safeWow64EnableWow64FsRedirection(TRUE);
+		isWow64Off = false;
+	}
+	return isOK;
 }
 
 int Buffer::getFileLength()