Package com.sun.jna.ptr

Examples of com.sun.jna.ptr.IntByReference

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   * @param key key type
   * @return root key
   */
  private static int getRegistryRootKey(REGISTRY_ROOT_KEY key) {
    Advapi32 advapi32;
    IntByReference pHandle;
    int handle = 0;

    advapi32 = Advapi32.INSTANCE;
    pHandle = new IntByReference();

    if(advapi32.RegOpenKeyEx(rootKeyMap.get(key), null, 0, 0, pHandle) == WINERROR.ERROR_SUCCESS) {
      handle = pHandle.getValue();
    }
    return(handle);
  }
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   * @param access access mode
   * @return handle to the key or 0
   */
  private static int openKey(REGISTRY_ROOT_KEY rootKey, String subKeyName, int access) {
    Advapi32 advapi32;
    IntByReference pHandle;
    int rootKeyHandle;

    advapi32 = Advapi32.INSTANCE;
    rootKeyHandle = getRegistryRootKey(rootKey);
    pHandle = new IntByReference();

    if(advapi32.RegOpenKeyEx(rootKeyHandle, subKeyName, 0, access, pHandle) == WINERROR.ERROR_SUCCESS) {
      return(pHandle.getValue());

    } else {
      return(0);
    }
  }
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   * @throws java.io.UnsupportedEncodingException on error
   * @return String or null
   */
  public static String getStringValue(REGISTRY_ROOT_KEY rootKey, String subKeyName, String name) throws UnsupportedEncodingException {
    Advapi32 advapi32;
    IntByReference pType, lpcbData;
    byte[] lpData = new byte[1];
    int handle = 0;
    String ret = null;

    advapi32 = Advapi32.INSTANCE;
    pType = new IntByReference();
    lpcbData = new IntByReference();
    handle = openKey(rootKey, subKeyName, WINNT.KEY_READ);

    if(handle != 0) {

      if(advapi32.RegQueryValueEx(handle, name, null, pType, lpData, lpcbData) == WINERROR.ERROR_MORE_DATA) {
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   * @param subKeyName key name
   * @param name value name
   */
  public static int getIntValue(REGISTRY_ROOT_KEY rootKey, String subKeyName, String name) {
    Advapi32 advapi32;
    IntByReference pType, lpcbData;
    byte[] lpData = new byte[1];
    int handle = 0;
    int ret = 0;

    advapi32 = Advapi32.INSTANCE;
    pType = new IntByReference();
    lpcbData = new IntByReference();
    handle = openKey(rootKey, subKeyName, WINNT.KEY_READ);

    if(handle != 0) {

      if(advapi32.RegQueryValueEx(handle, name, null, pType, lpData, lpcbData) == WINERROR.ERROR_MORE_DATA) {
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   * @param name value name
   * @return true if exists
   */
  public static boolean valueExists(REGISTRY_ROOT_KEY rootKey, String subKeyName, String name) {
    Advapi32 advapi32;
    IntByReference pType, lpcbData;
    byte[] lpData = new byte[1];
    int handle = 0;
    boolean ret = false;

    advapi32 = Advapi32.INSTANCE;
    pType = new IntByReference();
    lpcbData = new IntByReference();
    handle = openKey(rootKey, subKeyName, WINNT.KEY_READ);

    if(handle != 0) {

      if(advapi32.RegQueryValueEx(handle, name, null, pType, lpData, lpcbData) != WINERROR.ERROR_FILE_NOT_FOUND) {
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   * @param name key name
   * @return true on success
   */
  public static boolean createKey(REGISTRY_ROOT_KEY rootKey, String parent, String name) {
    Advapi32 advapi32;
    IntByReference hkResult, dwDisposition;
    int handle = 0;
    boolean ret = false;

    advapi32 = Advapi32.INSTANCE;
    hkResult = new IntByReference();
    dwDisposition = new IntByReference();
    handle = openKey(rootKey, parent, WINNT.KEY_READ);

    if(handle != 0) {

      if(advapi32.RegCreateKeyEx(handle, name, 0, null, WINNT.REG_OPTION_NON_VOLATILE, WINNT.KEY_READ, null,
         hkResult, dwDisposition) == WINERROR.ERROR_SUCCESS) {
        ret = true;
        advapi32.RegCloseKey(hkResult.getValue());

      } else {
        ret = false;
      }
      advapi32.RegCloseKey(handle);
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   */
  public static String[] getSubKeys(REGISTRY_ROOT_KEY rootKey, String parent) {
    Advapi32 advapi32;
    int handle = 0, dwIndex;
    char[] lpName;
    IntByReference lpcName;
    WINBASE.FILETIME lpftLastWriteTime;
    TreeSet<String> subKeys = new TreeSet<String>();

    advapi32 = Advapi32.INSTANCE;
    handle = openKey(rootKey, parent, WINNT.KEY_READ);
    lpName = new char[256];
    lpcName = new IntByReference(256);
    lpftLastWriteTime = new WINBASE.FILETIME();

    if(handle != 0) {
      dwIndex = 0;

      while(advapi32.RegEnumKeyEx(handle, dwIndex, lpName, lpcName, null,
            null, null, lpftLastWriteTime) == WINERROR.ERROR_SUCCESS) {
        subKeys.add(new String(lpName, 0, lpcName.getValue()));
        lpcName.setValue(256);
        dwIndex++;
      }
      advapi32.RegCloseKey(handle);
    }

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  public static TreeMap<String, Object> getValues(REGISTRY_ROOT_KEY rootKey, String key) throws UnsupportedEncodingException {
    Advapi32 advapi32;
    int handle = 0, dwIndex, result = 0;
    char[] lpValueName;
    byte[] lpData;
    IntByReference lpcchValueName, lpType, lpcbData;
    String name;
    TreeMap<String, Object> values = new TreeMap<String, Object>(String.CASE_INSENSITIVE_ORDER);

    advapi32 = Advapi32.INSTANCE;
    handle = openKey(rootKey, key, WINNT.KEY_READ);
    lpValueName = new char[16384];
    lpcchValueName = new IntByReference(16384);
    lpType = new IntByReference();
    lpData = new byte[1];
    lpcbData = new IntByReference();

    if(handle != 0) {
      dwIndex = 0;

      do {
        lpcbData.setValue(0);
        result = advapi32.RegEnumValue(handle, dwIndex, lpValueName, lpcchValueName, null,
          lpType, lpData, lpcbData);

        if(result == WINERROR.ERROR_MORE_DATA) {
          lpData = new byte[lpcbData.getValue()];
          lpcchValueName =  new IntByReference(16384);
          result = advapi32.RegEnumValue(handle, dwIndex, lpValueName, lpcchValueName, null,
            lpType, lpData, lpcbData);

          if(result == WINERROR.ERROR_SUCCESS) {
            name = new String(lpValueName, 0, lpcchValueName.getValue());

            switch(lpType.getValue()) {
              case WINNT.REG_SZ:
                values.put(name, convertBufferToString(lpData));
                break;
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    public int getIntValue(String valueName) {
        return convertBufferToInt(getValue(valueName));
    }

    private byte[] getValue(String valueName) {
        IntByReference pType, lpcbData;
        byte[] lpData = new byte[1];

        pType = new IntByReference();
        lpcbData = new IntByReference();

        OUTER:
        while(true) {
            int r = Advapi32.INSTANCE.RegQueryValueEx(handle, valueName, null, pType, lpData, lpcbData);
            switch (r) {
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    /**
     * Does a specified value exist?
     */
    public boolean valueExists(String name) {
        IntByReference pType, lpcbData;
        byte[] lpData = new byte[1];

        pType = new IntByReference();
        lpcbData = new IntByReference();

        OUTER:
        while(true) {
            int r = Advapi32.INSTANCE.RegQueryValueEx(handle, name, null, pType, lpData, lpcbData);
            switch(r) {
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