Examples with Pointer com.sun.jna.Pointer used on opensource projects

Example 96 with Pointer

use of com.sun.jna.Pointer in project buck by facebook.

the class ProcessHelper method windowsProcessId.

@Nullable
private Long windowsProcessId(Object process) {
    Class<?> clazz = process.getClass();
    if (clazz.getName().equals("java.lang.Win32Process") || clazz.getName().equals("java.lang.ProcessImpl")) {
        try {
            Field f = clazz.getDeclaredField("handle");
            f.setAccessible(true);
            long peer = f.getLong(process);
            Pointer pointer = Pointer.createConstant(peer);
            WinNT.HANDLE handle = new WinNT.HANDLE(pointer);
            return (long) Kernel32.INSTANCE.GetProcessId(handle);
        } catch (Exception e) {
            LOG.warn(e, "Cannot get process id!");
        }
    }
    return null;
}

Example 97 with Pointer

use of com.sun.jna.Pointer in project buck by facebook.

the class MacWifiSsidFinder method findCurrentSsid.

/**
   * Finds the SSID of the default Wi-Fi interface using Mac OS X APIs.
   */
public static Optional<String> findCurrentSsid() {
    LOG.debug("Getting current SSID..");
    // Grab a handle to the Objective-C runtime.
    Client objcClient = Client.getInstance();
    // Try the OS X 10.10 and later supported API, then fall
    // back to the OS X 10.6 API.
    Pointer wifiClientClass = RuntimeUtils.cls("CWWiFiClient");
    Optional<Proxy> defaultInterface;
    if (wifiClientClass != null) {
        LOG.verbose("Getting default interface using +[CWWiFiClient sharedWiFiClient]");
        defaultInterface = getDefaultWifiInterface(objcClient, wifiClientClass);
    } else {
        LOG.verbose("Getting default interface using +[CWInterface defaultInterface]");
        // CWInterface *defaultInterface = [CWInterface interface];
        defaultInterface = Optional.ofNullable(objcClient.sendProxy("CWInterface", "interface"));
    }
    return getSsidFromInterface(defaultInterface);
}

Example 98 with Pointer

use of com.sun.jna.Pointer in project jmonkeyengine by jMonkeyEngine.

the class OSVRInput method init.

@Override
public boolean init() {
    logger.config("Initialize OSVR input.");
    buttonHandler = new Callback() {

        @SuppressWarnings("unused")
        public void invoke(Pointer userdata, Pointer timeval, OSVR_ButtonReport report) {
            for (int i = 0; i < 2; i++) {
                for (int j = 0; j < BUTTON_COUNT; j++) {
                    if (buttons[i][j] == null)
                        continue;
                    if (userdata.toString().equals(buttons[i][j].getPointer().toString())) {
                        buttonState[i][j] = report.state;
                        return;
                    }
                }
            }
        }
    };
    analogHandler = new Callback() {

        @SuppressWarnings("unused")
        public void invoke(Pointer userdata, Pointer timeval, OSVR_AnalogReport report) {
            for (int i = 0; i < 2; i++) {
                for (int j = 0; j < ANALOG_COUNT; j++) {
                    for (int k = 0; k < CHANNEL_COUNT; k++) {
                        if (analogs[i][j][k] == null)
                            continue;
                        if (userdata.toString().equals(analogs[i][j][k].getPointer().toString())) {
                            analogState[i][j][k] = (float) report.state;
                            return;
                        }
                    }
                }
            }
        }
    };
    buttons = new OSVR_ClientInterface[2][BUTTON_COUNT];
    analogs = new OSVR_ClientInterface[2][ANALOG_COUNT][CHANNEL_COUNT];
    buttonState = new float[2][BUTTON_COUNT];
    analogState = new float[2][ANALOG_COUNT][CHANNEL_COUNT];
    hands = new OSVR_ClientInterface[2];
    hands[0] = getInterface(leftHand);
    hands[1] = getInterface(rightHand);
    handState = new OSVR_Pose3[2];
    handState[0] = new OSVR_Pose3();
    handState[1] = new OSVR_Pose3();
    for (int h = 0; h < 2; h++) {
        for (int i = 0; i < BUTTON_COUNT - 2; i++) {
            buttons[h][i] = getInterface(getButtonString(h == 0, (byte) Integer.toString(i).toCharArray()[0]));
            OsvrClientKitLibrary.osvrRegisterButtonCallback(buttons[h][i], buttonHandler, buttons[h][i].getPointer());
        }
    }
    buttons[0][BUTTON_COUNT - 2] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'l', 'e', 'f', 't', '/', 'b', 'u', 'm', 'p', 'e', 'r', (byte) 0 });
    OsvrClientKitLibrary.osvrRegisterButtonCallback(buttons[0][BUTTON_COUNT - 2], buttonHandler, buttons[0][BUTTON_COUNT - 2].getPointer());
    buttons[1][BUTTON_COUNT - 2] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'r', 'i', 'g', 'h', 't', '/', 'b', 'u', 'm', 'p', 'e', 'r', (byte) 0 });
    OsvrClientKitLibrary.osvrRegisterButtonCallback(buttons[1][BUTTON_COUNT - 2], buttonHandler, buttons[1][BUTTON_COUNT - 2].getPointer());
    buttons[0][BUTTON_COUNT - 1] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'l', 'e', 'f', 't', '/', 'j', 'o', 'y', 's', 't', 'i', 'c', 'k', '/', 'b', 'u', 't', 't', 'o', 'n', (byte) 0 });
    OsvrClientKitLibrary.osvrRegisterButtonCallback(buttons[0][BUTTON_COUNT - 1], buttonHandler, buttons[0][BUTTON_COUNT - 1].getPointer());
    buttons[1][BUTTON_COUNT - 1] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'r', 'i', 'g', 'h', 't', '/', 'j', 'o', 'y', 's', 't', 'i', 'c', 'k', '/', 'b', 'u', 't', 't', 'o', 'n', (byte) 0 });
    OsvrClientKitLibrary.osvrRegisterButtonCallback(buttons[1][BUTTON_COUNT - 1], buttonHandler, buttons[1][BUTTON_COUNT - 1].getPointer());
    analogs[0][0][0] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'l', 'e', 'f', 't', '/', 't', 'r', 'i', 'g', 'g', 'e', 'r', (byte) 0 });
    analogs[1][0][0] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'r', 'i', 'g', 'h', 't', '/', 't', 'r', 'i', 'g', 'g', 'e', 'r', (byte) 0 });
    OsvrClientKitLibrary.osvrRegisterAnalogCallback(analogs[0][0][0], analogHandler, analogs[0][0][0].getPointer());
    OsvrClientKitLibrary.osvrRegisterAnalogCallback(analogs[1][0][0], analogHandler, analogs[1][0][0].getPointer());
    analogs[0][1][0] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'l', 'e', 'f', 't', '/', 'j', 'o', 'y', 's', 't', 'i', 'c', 'k', '/', 'x', (byte) 0 });
    analogs[0][1][1] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'l', 'e', 'f', 't', '/', 'j', 'o', 'y', 's', 't', 'i', 'c', 'k', '/', 'y', (byte) 0 });
    OsvrClientKitLibrary.osvrRegisterAnalogCallback(analogs[0][1][0], analogHandler, analogs[0][1][0].getPointer());
    OsvrClientKitLibrary.osvrRegisterAnalogCallback(analogs[0][1][1], analogHandler, analogs[0][1][1].getPointer());
    analogs[1][1][0] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'r', 'i', 'g', 'h', 't', '/', 'j', 'o', 'y', 's', 't', 'i', 'c', 'k', '/', 'x', (byte) 0 });
    analogs[1][1][1] = getInterface(new byte[] { '/', 'c', 'o', 'n', 't', 'r', 'o', 'l', 'l', 'e', 'r', '/', 'r', 'i', 'g', 'h', 't', '/', 'j', 'o', 'y', 's', 't', 'i', 'c', 'k', '/', 'y', (byte) 0 });
    OsvrClientKitLibrary.osvrRegisterAnalogCallback(analogs[1][1][0], analogHandler, analogs[1][1][0].getPointer());
    OsvrClientKitLibrary.osvrRegisterAnalogCallback(analogs[1][1][1], analogHandler, analogs[1][1][1].getPointer());
    return true;
}

Example 99 with Pointer

use of com.sun.jna.Pointer in project jna by java-native-access.

the class AlphaMaskDemo method updateW32.

private void updateW32(boolean a, boolean i) {
    User32 user = User32.INSTANCE;
    GDI32 gdi = GDI32.INSTANCE;
    HWND hWnd = null;
    if (!alphaWindow.isDisplayable()) {
        alphaWindow.pack();
        hWnd = getHwnd(alphaWindow);
        int flags = user.GetWindowLong(hWnd, WinUser.GWL_EXSTYLE);
        flags |= WinUser.WS_EX_LAYERED;
        user.SetWindowLong(hWnd, WinUser.GWL_EXSTYLE, flags);
        Window parent = alphaWindow.getOwner();
        Point where = parent.getLocationOnScreen();
        where.translate(parent.getWidth(), 0);
        alphaWindow.setLocation(where);
    } else {
        hWnd = getHwnd(alphaWindow);
    }
    if (i) {
        int w = image.getWidth(null);
        int h = image.getHeight(null);
        HDC screenDC = user.GetDC(null);
        HDC memDC = gdi.CreateCompatibleDC(screenDC);
        HBITMAP hBitmap = null;
        HANDLE oldBitmap = null;
        try {
            BufferedImage buf = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
            Graphics g = buf.getGraphics();
            g.drawImage(image, 0, 0, w, h, null);
            BITMAPINFO bmi = new BITMAPINFO();
            bmi.bmiHeader.biWidth = w;
            bmi.bmiHeader.biHeight = h;
            bmi.bmiHeader.biPlanes = 1;
            bmi.bmiHeader.biBitCount = 32;
            bmi.bmiHeader.biCompression = WinGDI.BI_RGB;
            bmi.bmiHeader.biSizeImage = w * h * 4;
            PointerByReference ppbits = new PointerByReference();
            hBitmap = gdi.CreateDIBSection(memDC, bmi, WinGDI.DIB_RGB_COLORS, ppbits, null, 0);
            oldBitmap = gdi.SelectObject(memDC, hBitmap);
            Pointer pbits = ppbits.getValue();
            Raster raster = buf.getData();
            int[] pixel = new int[4];
            int[] bits = new int[w * h];
            for (int y = 0; y < h; y++) {
                for (int x = 0; x < w; x++) {
                    raster.getPixel(x, h - y - 1, pixel);
                    int alpha = (pixel[3] & 0xFF) << 24;
                    int red = (pixel[2] & 0xFF);
                    int green = (pixel[1] & 0xFF) << 8;
                    int blue = (pixel[0] & 0xFF) << 16;
                    bits[x + y * w] = alpha | red | green | blue;
                }
            }
            pbits.write(0, bits, 0, bits.length);
            SIZE size = new SIZE();
            size.cx = w;
            size.cy = h;
            POINT loc = new POINT();
            loc.x = alphaWindow.getX();
            loc.y = alphaWindow.getY();
            POINT srcLoc = new POINT();
            BLENDFUNCTION blend = new BLENDFUNCTION();
            blend.SourceConstantAlpha = (byte) (alpha * 255);
            blend.AlphaFormat = WinUser.AC_SRC_ALPHA;
            user.UpdateLayeredWindow(hWnd, screenDC, loc, size, memDC, srcLoc, 0, blend, WinUser.ULW_ALPHA);
        } finally {
            user.ReleaseDC(null, screenDC);
            if (hBitmap != null) {
                gdi.SelectObject(memDC, oldBitmap);
                gdi.DeleteObject(hBitmap);
            }
            gdi.DeleteDC(memDC);
        }
    } else if (a) {
        BLENDFUNCTION blend = new BLENDFUNCTION();
        blend.SourceConstantAlpha = (byte) (alpha * 255);
        blend.AlphaFormat = WinUser.AC_SRC_ALPHA;
        user.UpdateLayeredWindow(hWnd, null, null, null, null, null, 0, blend, WinUser.ULW_ALPHA);
    }
    if (!alphaWindow.isVisible()) {
        alphaWindow.setVisible(true);
    }
}

Example 100 with Pointer

use of com.sun.jna.Pointer in project jna by java-native-access.

the class Advapi32Util method getSecurityDescriptorForObject.

/**
     * Get a self relative security descriptor for the given object type. The value is returned in Memory
     * @param absoluteObjectPath
     *         A pointer to a null-terminated string that specifies the name of the object
     *         from which to retrieve security information. For descriptions of the string
     *         formats for the different object types, see SE_OBJECT_TYPE in
     *         {@link AccCtrl.SE_OBJECT_TYPE}
     * @param objectType
     *         Object type referred to by the path. See  {@link AccCtrl.SE_OBJECT_TYPE} for valid definitions.
     * @param getSACL
     *         Get SACL of the object. See {@link Advapi32#GetNamedSecurityInfo} for process privilege requirements in getting the SACL.
     * @return Memory containing the self relative security descriptor
     */
public static Memory getSecurityDescriptorForObject(final String absoluteObjectPath, int objectType, boolean getSACL) {
    int infoType = OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION | (getSACL ? SACL_SECURITY_INFORMATION : 0);
    PointerByReference ppSecurityDescriptor = new PointerByReference();
    int lastError = Advapi32.INSTANCE.GetNamedSecurityInfo(absoluteObjectPath, objectType, infoType, null, null, null, null, ppSecurityDescriptor);
    if (lastError != 0) {
        throw new Win32Exception(lastError);
    }
    int nLength = Advapi32.INSTANCE.GetSecurityDescriptorLength(ppSecurityDescriptor.getValue());
    Memory memory = new Memory(nLength);
    Pointer secValue = ppSecurityDescriptor.getValue();
    try {
        byte[] data = secValue.getByteArray(0, nLength);
        memory.write(0, data, 0, nLength);
        return memory;
    } finally {
        Kernel32Util.freeLocalMemory(secValue);
    }
}