Java Memory.getByte方法代码示例

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * Gets the icon that corresponds to a given icon handler.
 * 
 * @param hIcon
 *            Handler to the icon to get
 * @return The icon that corresponds to a given icon handler
 */
public static BufferedImage getIcon(final HICON hIcon) {
	final int width = ICON_SIZE;
	final int height = ICON_SIZE;
	final short depth = ICON_DEPTH;
	final BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

	final Memory lpBitsColor = new Memory(width * height * depth / ICON_BYTE_SIZE);
	final Memory lpBitsMask = new Memory(width * height * depth / ICON_BYTE_SIZE);
	final BITMAPINFO info = new BITMAPINFO();
	final BITMAPINFOHEADER hdr = new BITMAPINFOHEADER();
	info.bmiHeader = hdr;
	hdr.biWidth = width;
	hdr.biHeight = height;
	hdr.biPlanes = 1;
	hdr.biBitCount = depth;
	hdr.biCompression = WinGDI.BI_RGB;

	final HDC hDC = User32.INSTANCE.GetDC(null);
	final ICONINFO piconinfo = new ICONINFO();
	User32.INSTANCE.GetIconInfo(hIcon, piconinfo);

	GDI32.INSTANCE.GetDIBits(hDC, piconinfo.hbmColor, 0, height, lpBitsColor, info, WinGDI.DIB_RGB_COLORS);
	GDI32.INSTANCE.GetDIBits(hDC, piconinfo.hbmMask, 0, height, lpBitsMask, info, WinGDI.DIB_RGB_COLORS);

	int r, g, b, a, argb;
	int x = 0, y = height - 1;
	for (int i = 0; i < lpBitsColor.size(); i = i + 3) {
		b = lpBitsColor.getByte(i) & 0xFF;
		g = lpBitsColor.getByte(i + 1) & 0xFF;
		r = lpBitsColor.getByte(i + 2) & 0xFF;
		a = 0xFF - lpBitsMask.getByte(i) & 0xFF;

		argb = a << 24 | r << 16 | g << 8 | b;
		image.setRGB(x, y, argb);
		x = (x + 1) % width;
		if (x == 0) {
			y--;
		}
	}

	User32.INSTANCE.ReleaseDC(null, hDC);
	GDI32.INSTANCE.DeleteObject(piconinfo.hbmColor);
	GDI32.INSTANCE.DeleteObject(piconinfo.hbmMask);

	return image;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * This function returns the Username associated with the workstation's or server's ID where this function is executed.<br>
 * 
 * @return username
 */
public static String getCurrentUsername() {
	Memory retUserNameMem = new Memory(NotesConstants.MAXUSERNAME+1);
	
	short result = NotesNativeAPI.get().SECKFMGetUserName(retUserNameMem);
	NotesErrorUtils.checkResult(result);
	
	int userNameLength = 0;
	for (int i=0; i<retUserNameMem.size(); i++) {
		userNameLength = i;
		if (retUserNameMem.getByte(i) == 0) {
			break;
		}
	}
	
	String userName = NotesStringUtils.fromLMBCS(retUserNameMem, userNameLength);
	return userName;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * This function switches to the specified ID file and returns the user name associated with it.<br>
 * <br>
 * Multiple passwords are not supported.<br>
 * <br>
 * NOTE: This function should only be used in a C API stand alone application.
 * 
 * @param idPath path to the ID file that is to be switched to
 * @param password password of the ID file that is to be switched to
 * @param dontSetEnvVar  If specified, the notes.ini file (either ServerKeyFileName or KeyFileName) is modified to reflect the ID change.
 * @return user name, in the ID file that is to be switched to
 */
public static String switchToId(String idPath, String password, boolean dontSetEnvVar) {
	Memory idPathMem = NotesStringUtils.toLMBCS(idPath, true);
	Memory passwordMem = NotesStringUtils.toLMBCS(password, true);
	Memory retUserNameMem = new Memory(NotesConstants.MAXUSERNAME+1);
	
	short result = NotesNativeAPI.get().SECKFMSwitchToIDFile(idPathMem, passwordMem, retUserNameMem,
			NotesConstants.MAXUSERNAME, dontSetEnvVar ? NotesConstants.fKFM_switchid_DontSetEnvVar : 0, null);
	NotesErrorUtils.checkResult(result);
	
	int userNameLength = 0;
	for (int i=0; i<retUserNameMem.size(); i++) {
		userNameLength = i;
		if (retUserNameMem.getByte(i) == 0) {
			break;
		}
	}
	
	String userName = NotesStringUtils.fromLMBCS(retUserNameMem, userNameLength);
	return userName;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * Scans the Memory object for null values
 * 
 * @param in memory
 * @return number of bytes before null byte in memory
 */
public static int getNullTerminatedLength(Memory in) {
	int textLen = (int) in.size();
	
	//search for terminating null character
	for (int i=0; i<textLen; i++) {
		byte b = in.getByte(i);
		if (b==0) {
			textLen = i;
			break;
		}
	}

	return textLen;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * Internal helper method to fetch the ID from the ID vault.
 * 
 * @param userName Name of user whose ID is being put into vault - either abbreviated or canonical format
 * @param password Password to id file being uploaded to the vault
 * @param idPath if not null, path to where the download ID file should be created or overwritten
 * @param rethKFC64 if not null, returns the hKFC handle to the in-memory id for 64 bit
 * @param rethKFC32 if not null, returns the hKFC handle to the in-memory id for 32 bit
 * @param serverName Name of server to contact
 * @return the vault server name
 * @throws NotesError in case of problems, e.g. ERR 22792 Wrong Password
 */
private static String _getUserIdFromVault(String userName, String password, String idPath, LongByReference rethKFC64, IntByReference rethKFC32, String serverName) {
	String userNameCanonical = NotesNamingUtils.toCanonicalName(userName);
	Memory userNameCanonicalMem = NotesStringUtils.toLMBCS(userNameCanonical, true);
	Memory passwordMem = NotesStringUtils.toLMBCS(password, true);
	Memory idPathMem = NotesStringUtils.toLMBCS(idPath, true);
	Memory serverNameMem = new Memory(NotesConstants.MAXPATH);
	{
		Memory serverNameParamMem = NotesStringUtils.toLMBCS(serverName, true);
		if (serverNameParamMem!=null && (serverNameParamMem.size() > NotesConstants.MAXPATH)) {
			throw new IllegalArgumentException("Servername length cannot exceed MAXPATH ("+NotesConstants.MAXPATH+" characters)");
		}
		if (serverNameParamMem!=null) {
			byte[] serverNameParamArr = serverNameParamMem.getByteArray(0, (int) serverNameParamMem.size());
			serverNameMem.write(0, serverNameParamArr, 0, serverNameParamArr.length);
		}
		else {
			serverNameMem.setByte(0, (byte) 0);
		}
	}
	
	short result;
	if (PlatformUtils.is64Bit()) {
		result = NotesNativeAPI64.get().SECidfGet(userNameCanonicalMem, passwordMem, idPathMem, rethKFC64, serverNameMem, 0, (short) 0, null);
	}
	else {
		result = NotesNativeAPI32.get().SECidfGet(userNameCanonicalMem, passwordMem, idPathMem, rethKFC32, serverNameMem, 0, (short) 0, null);
	}
	NotesErrorUtils.checkResult(result);
	
	int vaultServerNameLength = 0;
	for (int i=0; i<serverNameMem.size(); i++) {
		vaultServerNameLength = i;
		if (serverNameMem.getByte(i) == 0) {
			break;
		}
	}
	
	String vaultServerName = NotesStringUtils.fromLMBCS(serverNameMem, vaultServerNameLength);
	return vaultServerName;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * Will open the ID file name provided, locate a vault server, synch the ID file contents to the vault,
 * then return the synched content. If successful the vault server name is returned.

 * @param userName Name of user whose ID is being put into vault - either abbreviated or canonical format
 * @param password Password to id file being uploaded to the vault
 * @param idPath Path to where the download ID file should be created or overwritten
 * @param serverName Name of server to contact
 * @return sync result
 */
public static SyncResult syncUserIdWithVault(String userName, String password, String idPath, String serverName) {
	String userNameCanonical = NotesNamingUtils.toCanonicalName(userName);
	Memory userNameCanonicalMem = NotesStringUtils.toLMBCS(userNameCanonical, true);
	Memory passwordMem = NotesStringUtils.toLMBCS(password, true);
	Memory idPathMem = NotesStringUtils.toLMBCS(idPath, true);
	Memory serverNameMem = new Memory(NotesConstants.MAXPATH);
	{
		Memory serverNameParamMem = NotesStringUtils.toLMBCS(serverName, true);
		if (serverNameParamMem!=null && (serverNameParamMem.size() > NotesConstants.MAXPATH)) {
			throw new IllegalArgumentException("Servername length cannot exceed MAXPATH ("+NotesConstants.MAXPATH+" characters)");
		}
		if (serverNameParamMem!=null) {
			byte[] serverNameParamArr = serverNameParamMem.getByteArray(0, (int) serverNameParamMem.size());
			serverNameMem.write(0, serverNameParamArr, 0, serverNameParamArr.length);
		}
		else {
			serverNameMem.setByte(0, (byte) 0);
		}
	}
	
	LongByReference phKFC64 = new LongByReference();
	IntByReference phKFC32 = new IntByReference();
	IntByReference retdwFlags = new IntByReference();
	
	short result;
	if (PlatformUtils.is64Bit()) {
		result = NotesNativeAPI64.get().SECKFMOpen (phKFC64, idPathMem, passwordMem, NotesConstants.SECKFM_open_All, 0, null);
	}
	else {
		result = NotesNativeAPI32.get().SECKFMOpen (phKFC32, idPathMem, passwordMem, NotesConstants.SECKFM_open_All, 0, null);
	}
	NotesErrorUtils.checkResult(result);
	
	try {
		if (PlatformUtils.is64Bit()) {
			result = NotesNativeAPI64.get().SECidfSync(userNameCanonicalMem, passwordMem, idPathMem, phKFC64, serverNameMem, 0, (short) 0, null, retdwFlags);
		}
		else {
			result = NotesNativeAPI32.get().SECidfSync(userNameCanonicalMem, passwordMem, idPathMem, phKFC32, serverNameMem, 0, (short) 0, null, retdwFlags);
		}
		NotesErrorUtils.checkResult(result);
	}
	finally {
		if (PlatformUtils.is64Bit()) {
			result = NotesNativeAPI64.get().SECKFMClose(phKFC64, NotesConstants.SECKFM_close_WriteIdFile, 0, null);
		}
		else {
			result = NotesNativeAPI32.get().SECKFMClose(phKFC32, NotesConstants.SECKFM_close_WriteIdFile, 0, null);
		}
		NotesErrorUtils.checkResult(result);
	}

	NotesErrorUtils.checkResult(result);
	
	int vaultServerNameLength = 0;
	for (int i=0; i<serverNameMem.size(); i++) {
		vaultServerNameLength = i;
		if (serverNameMem.getByte(i) == 0) {
			break;
		}
	}
	
	String vaultServerName = NotesStringUtils.fromLMBCS(serverNameMem, vaultServerNameLength);
	
	SyncResult syncResult = new SyncResult(vaultServerName, retdwFlags.getValue());
	return syncResult;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * Constructs a network path of a database (server!!path with proper encoding)
 * 
 * @param server server or null
 * @param filePath filepath
 * @return LMBCS encoded path
 */
private static Memory constructNetPath(String server, String filePath) {
	if (server==null)
		server = "";
	if (filePath==null)
		throw new NullPointerException("filePath is null");

	server = NotesNamingUtils.toCanonicalName(server);
	
	String idUserName = IDUtils.getCurrentUsername();
	boolean isOnServer = IDUtils.isOnServer();
	
	if (!"".equals(server)) {
		if (isOnServer) {
			String serverCN = NotesNamingUtils.toCommonName(server);
			String currServerCN = NotesNamingUtils.toCommonName(idUserName);
			if (serverCN.equalsIgnoreCase(currServerCN)) {
				//switch to "" as servername if server points to the server the API is running on
				server = "";
			}
		}
	}
	
	Memory dbServerLMBCS = NotesStringUtils.toLMBCS(server, true);
	Memory dbFilePathLMBCS = NotesStringUtils.toLMBCS(filePath, true);
	Memory retFullNetPath = new Memory(NotesConstants.MAXPATH);

	short result = NotesNativeAPI.get().OSPathNetConstruct(null, dbServerLMBCS, dbFilePathLMBCS, retFullNetPath);
	NotesErrorUtils.checkResult(result);

	//reduce length of retDbPathName
	int newLength = 0;
	for (int i=0; i<retFullNetPath.size(); i++) {
		byte b = retFullNetPath.getByte(i);
		if (b==0) {
			newLength = i;
			break;
		}
	}
	byte[] retFullNetPathArr = retFullNetPath.getByteArray(0, newLength);
	
	Memory reducedFullNetPathMem = new Memory(newLength+1);
	reducedFullNetPathMem.write(0, retFullNetPathArr, 0, retFullNetPathArr.length);
	reducedFullNetPathMem.setByte(newLength, (byte) 0);
	return reducedFullNetPathMem;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * Sends {@code WM_CLOSE} to the specified Windows {@link Process}.
 *
 * @param processInfo the {@link ProcessInfo} referencing the
 *            {@link Process} to send to.
 * @return {@code true} if {@code WM_CLOSE} was sent, {@code false}
 *         otherwise.
 */
protected boolean stopWindowsProcessWMClosed(@Nonnull ProcessInfo processInfo) {
	if (LOGGER.isTraceEnabled()) {
		LOGGER.trace(
			"Attempting to stop timed out process \"{}\" ({}) with WM_CLOSE",
			processInfo.getName(),
			processInfo.getPID()
		);
	}
	HANDLE hProc = Kernel32.INSTANCE.OpenProcess(
		Kernel32.SYNCHRONIZE | Kernel32.PROCESS_TERMINATE,
		false,
		processInfo.getPID()
	);
	if (hProc == null) {
		if (LOGGER.isTraceEnabled()) {
			LOGGER.trace(
				"Failed to get Windows handle for process \"{}\" ({}) during WM_CLOSE",
				processInfo.getName(),
				processInfo.getPID()
			);
		}
		return false;
	}
	final Memory posted = new Memory(1);
	posted.setByte(0, (byte) 0);
	Memory dwPID = new Memory(4);
	dwPID.setInt(0, processInfo.getPID());
	User32.INSTANCE.EnumWindows(new WNDENUMPROC() {

		@Override
		public boolean callback(HWND hWnd, Pointer data) {
			IntByReference dwID = new IntByReference();
			User32.INSTANCE.GetWindowThreadProcessId(hWnd, dwID);

			if (dwID.getValue() == data.getInt(0)) {
				User32.INSTANCE.PostMessage(hWnd, User32.WM_CLOSE, new WPARAM(0), new LPARAM(0));
				posted.setByte(0, (byte) 1);
			}
			return true;
		}
	}, dwPID);
	Kernel32.INSTANCE.CloseHandle(hProc);
	if (LOGGER.isTraceEnabled()) {
		if (posted.getByte(0) > 0) {
			LOGGER.trace(
				"WM_CLOSE sent to process \"{}\" ({}) with PostMessage",
				processInfo.getName(),
				processInfo.getPID()
			);
		} else {
			LOGGER.trace(
				"Can't find any Windows belonging to process \"{}\" ({}), unable to send WM_CLOSE",
				processInfo.getName(),
				processInfo.getPID()
			);
		}
	}
	return posted.getByte(0) > 0;
}
 

import com.sun.jna.Memory; //导入方法依赖的package包/类
/**
 * @return The value of this {@link CFNumberRef} as a {@link Number}.
 */
public Number getValue() {
	if (this.getPointer() == null) {
		return null;
	}
	CFNumberType numberType = INSTANCE.CFNumberGetType(this);
	Memory value = new Memory(8);
	INSTANCE.CFNumberGetValue(this, numberType, value);
	switch (numberType) {
		case kCFNumberCFIndexType:
		case kCFNumberSInt32Type:
			return value.getInt(0);
		case kCFNumberCGFloatType:
		case kCFNumberMaxType:
			if (NativeLong.SIZE == 8) {
				return value.getDouble(0);
			}
			return value.getFloat(0);
		case kCFNumberCharType:
			return (int) value.getChar(0);
		case kCFNumberDoubleType:
		case kCFNumberFloat64Type:
			return value.getDouble(0);
		case kCFNumberFloatType:
		case kCFNumberFloat32Type:
			return value.getFloat(0);
		case kCFNumberLongLongType:
		case kCFNumberSInt64Type:
			return value.getLong(0);
		case kCFNumberIntType:
		case kCFNumberLongType:
		case kCFNumberNSIntegerType:
			return value.getNativeLong(0);
		case kCFNumberSInt16Type:
		case kCFNumberShortType:
			return value.getShort(0);
		case kCFNumberSInt8Type:
			return value.getByte(0);
		default:
			throw new IllegalStateException("Unimplemented value " + numberType);
	}
}