Examples with HKEYByReference com.sun.jna.platform.win32.WinReg.HKEYByReference used on opensource projects

Example 16 with HKEYByReference

use of com.sun.jna.platform.win32.WinReg.HKEYByReference in project jna by java-native-access.

the class Advapi32Util method registryKeyExists.

/**
	 * Checks whether a registry key exists.
	 *
	 * @param root
	 *            HKEY_LOCAL_MACHINE, etc.
	 * @param key
	 *            Path to the registry key.
	 * @return True if the key exists.
	 */
public static boolean registryKeyExists(HKEY root, String key) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, key, 0, WinNT.KEY_READ, phkKey);
    switch(rc) {
        case W32Errors.ERROR_SUCCESS:
            Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
            return true;
        case W32Errors.ERROR_FILE_NOT_FOUND:
            return false;
        default:
            throw new Win32Exception(rc);
    }
}

Example 17 with HKEYByReference

use of com.sun.jna.platform.win32.WinReg.HKEYByReference in project jna by java-native-access.

the class Advapi32Util method registrySetExpandableStringValue.

/**
	 * Set a string value in registry.
	 *
	 * @param root
	 *            Root key.
	 * @param keyPath
	 *            Path to an existing registry key.
	 * @param name
	 *            Value name.
	 * @param value
	 *            Value to write to registry.
	 */
public static void registrySetExpandableStringValue(HKEY root, String keyPath, String name, String value) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, keyPath, 0, WinNT.KEY_READ | WinNT.KEY_WRITE, phkKey);
    if (rc != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(rc);
    }
    try {
        registrySetExpandableStringValue(phkKey.getValue(), name, value);
    } finally {
        rc = Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
        if (rc != W32Errors.ERROR_SUCCESS) {
            throw new Win32Exception(rc);
        }
    }
}

Example 18 with HKEYByReference

use of com.sun.jna.platform.win32.WinReg.HKEYByReference in project jna by java-native-access.

the class Advapi32Util method registryGetKeys.

/**
	 * Get names of the registry key's sub-keys.
	 *
	 * @param root
	 *            Root key.
	 * @param keyPath
	 *            Path to a registry key.
	 * @return Array of registry key names.
	 */
public static String[] registryGetKeys(HKEY root, String keyPath) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, keyPath, 0, WinNT.KEY_READ, phkKey);
    if (rc != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(rc);
    }
    try {
        return registryGetKeys(phkKey.getValue());
    } finally {
        rc = Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
        if (rc != W32Errors.ERROR_SUCCESS) {
            throw new Win32Exception(rc);
        }
    }
}

Example 19 with HKEYByReference

use of com.sun.jna.platform.win32.WinReg.HKEYByReference in project jna by java-native-access.

the class Advapi32Util method registryGetValues.

/**
	 * Get a table of registry values.
	 *
	 * @param root
	 *            Registry root.
	 * @param keyPath
	 *            Regitry key path.
	 * @return Table of values.
	 */
public static TreeMap<String, Object> registryGetValues(HKEY root, String keyPath) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, keyPath, 0, WinNT.KEY_READ, phkKey);
    if (rc != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(rc);
    }
    try {
        return registryGetValues(phkKey.getValue());
    } finally {
        rc = Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
        if (rc != W32Errors.ERROR_SUCCESS) {
            throw new Win32Exception(rc);
        }
    }
}

Example 20 with HKEYByReference

use of com.sun.jna.platform.win32.WinReg.HKEYByReference in project jna by java-native-access.

the class Advapi32Util method registryValueExists.

/**
	 * Checks whether a registry value exists.
	 *
	 * @param root
	 *            HKEY_LOCAL_MACHINE, etc.
	 * @param key
	 *            Registry key path.
	 * @param value
	 *            Value name.
	 * @return True if the value exists.
	 */
public static boolean registryValueExists(HKEY root, String key, String value) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, key, 0, WinNT.KEY_READ, phkKey);
    try {
        switch(rc) {
            case W32Errors.ERROR_SUCCESS:
                break;
            case W32Errors.ERROR_FILE_NOT_FOUND:
                return false;
            default:
                throw new Win32Exception(rc);
        }
        IntByReference lpcbData = new IntByReference();
        IntByReference lpType = new IntByReference();
        rc = Advapi32.INSTANCE.RegQueryValueEx(phkKey.getValue(), value, 0, lpType, (char[]) null, lpcbData);
        switch(rc) {
            case W32Errors.ERROR_SUCCESS:
            case W32Errors.ERROR_MORE_DATA:
            case W32Errors.ERROR_INSUFFICIENT_BUFFER:
                return true;
            case W32Errors.ERROR_FILE_NOT_FOUND:
                return false;
            default:
                throw new Win32Exception(rc);
        }
    } finally {
        if (phkKey.getValue() != WinBase.INVALID_HANDLE_VALUE) {
            rc = Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
            if (rc != W32Errors.ERROR_SUCCESS) {
                throw new Win32Exception(rc);
            }
        }
    }
}