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

Example 6 with Pointer

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

the class Advapi32Test method testReadEncryptedFileRaw.

public void testReadEncryptedFileRaw() throws Exception {
    // create an encrypted file
    File file = createTempFile();
    String lpFileName = file.getAbsolutePath();
    assertTrue("EncryptFile(" + lpFileName + ")", Advapi32.INSTANCE.EncryptFile(lpFileName));
    // open file for export
    ULONG ulFlags = new ULONG(0);
    PointerByReference pvContext = new PointerByReference();
    assertEquals(W32Errors.ERROR_SUCCESS, Advapi32.INSTANCE.OpenEncryptedFileRaw(lpFileName, ulFlags, pvContext));
    // read encrypted file
    final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    FE_EXPORT_FUNC pfExportCallback = new FE_EXPORT_FUNC() {

        @Override
        public DWORD callback(Pointer pbData, Pointer pvCallbackContext, ULONG ulLength) {
            if (pbData == null) {
                throw new NullPointerException("Callback data unexpectedly missing");
            }
            byte[] arr = pbData.getByteArray(0, ulLength.intValue());
            try {
                outputStream.write(arr);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
            return new DWORD(W32Errors.ERROR_SUCCESS);
        }
    };
    assertEquals(W32Errors.ERROR_SUCCESS, Advapi32.INSTANCE.ReadEncryptedFileRaw(pfExportCallback, null, pvContext.getValue()));
    outputStream.close();
    Advapi32.INSTANCE.CloseEncryptedFileRaw(pvContext.getValue());
    file.delete();
}

Example 7 with Pointer

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

the class ITypeLibTest method testFindName.

public void testFindName() {
    ITypeLib shellTypeLib = loadShellTypeLib();
    // The found member is Count, search done with lowercase value to test
    // correct behaviour (search is case insensitive)
    String memberValue = "count";
    String memberValueOk = "Count";
    Pointer p = Ole32.INSTANCE.CoTaskMemAlloc((memberValue.length() + 1L) * Native.WCHAR_SIZE);
    WTypes.LPOLESTR olestr = new WTypes.LPOLESTR(p);
    olestr.setValue(memberValue);
    short maxResults = 100;
    ULONG lHashVal = new ULONG(0);
    USHORTByReference pcFound = new USHORTByReference(maxResults);
    Pointer[] pointers = new Pointer[maxResults];
    MEMBERID[] rgMemId = new MEMBERID[maxResults];
    HRESULT hr = shellTypeLib.FindName(olestr, lHashVal, pointers, rgMemId, pcFound);
    assertTrue(COMUtils.SUCCEEDED(hr));
    // If a reader can come up with more tests it would be appretiated,
    // the documentation is unclear what more can be expected
    // 2 matches come from manual tests
    assertTrue(pcFound.getValue().intValue() == 2);
    // Check that function return corrected member name (Count) - see uppercase C
    assertEquals(memberValueOk, olestr.getValue());
    // There have to be as many pointers as reported by pcFound
    assertNotNull(pointers[0]);
    assertNotNull(pointers[1]);
    // Might be flaky, contract only defined positions 0 -> (pcFound - 1)
    assertNull(pointers[2]);
    // Test access to second value
    TypeInfo secondTypeInfo = new TypeInfo(pointers[1]);
    PointerByReference pbr = new PointerByReference();
    hr = secondTypeInfo.GetTypeAttr(pbr);
    assertTrue(COMUtils.SUCCEEDED(hr));
    OaIdl.TYPEATTR pTypeAttr = new OaIdl.TYPEATTR(pbr.getValue());
    // Either interface FolderItemVerbs ({1F8352C0-50B0-11CF-960C-0080C7F4EE85})
    // or FolderItems ({744129E0-CBE5-11CE-8350-444553540000})
    String typeGUID = pTypeAttr.guid.toGuidString();
    assertTrue(typeGUID.equals("{1F8352C0-50B0-11CF-960C-0080C7F4EE85}") || typeGUID.equals("{744129E0-CBE5-11CE-8350-444553540000}"));
    secondTypeInfo.ReleaseTypeAttr(pTypeAttr);
    Ole32.INSTANCE.CoTaskMemFree(olestr.getPointer());
}

Example 8 with Pointer

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

the class ITypeLibTest method testIsName.

public void testIsName() {
    ITypeLib shellTypeLib = loadShellTypeLib();
    String memberValue = "Folder";
    Pointer p = Ole32.INSTANCE.CoTaskMemAlloc((memberValue.length() + 1L) * Native.WCHAR_SIZE);
    WTypes.LPOLESTR olestr = new WTypes.LPOLESTR(p);
    olestr.setValue(memberValue);
    WinDef.BOOLByReference boolByRef = new WinDef.BOOLByReference();
    HRESULT hr = shellTypeLib.IsName(olestr, new ULONG(0), boolByRef);
    assertTrue(COMUtils.SUCCEEDED(hr));
    // Folder is a member
    assertTrue(boolByRef.getValue().booleanValue());
    Ole32.INSTANCE.CoTaskMemFree(p);
}

Example 9 with Pointer

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

the class OpenVRUtil method getTrackedDeviceStringProperty.

/**
	 * Get the value of the given string {@link JOpenVRLibrary.ETrackedDeviceProperty property} attached to the given device.
	 * @param system the underlying OpenVR system.
	 * @param deviceIndex the index of the device to query.
	 * @param property the property to query.
	 * @param bufferSize the size of the buffer to use for storing native string.
	 * @return the value of the given string property attached to the given device.
	 * @see OpenVRInput#getTrackedControllerCount()
	 * @see JOpenVRLibrary.ETrackedDeviceProperty
	 * @see #getTrackedDeviceStringProperty(VR_IVRSystem_FnTable, int, int)
	 */
public static String getTrackedDeviceStringProperty(VR_IVRSystem_FnTable system, int deviceIndex, int property, int bufferSize) {
    String str = "";
    int unBufferSize = 256;
    Pointer pchValue = new Memory(unBufferSize);
    IntByReference pError = new IntByReference();
    system.GetStringTrackedDeviceProperty.apply(deviceIndex, property, pchValue, unBufferSize, pError);
    if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_Success) {
        str = pchValue.getString(0);
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_BufferTooSmall) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_CouldNotContactServer) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_InvalidDevice) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_InvalidOperation) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_NotYetAvailable) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_PermissionDenied) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_StringExceedsMaximumLength) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_UnknownProperty) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_ValueNotProvidedByDevice) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_WrongDataType) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else if (pError.getValue() == ETrackedPropertyError.ETrackedPropertyError_TrackedProp_WrongDeviceClass) {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    } else {
        throw new IllegalArgumentException("Cannot access property \"" + getETrackedDevicePropertyString(property) + "\" (" + property + ") for device " + deviceIndex + ": " + getETrackedPropertyErrorString(pError.getValue()) + " (" + pError.getValue() + ")");
    }
    return str;
}

Example 10 with Pointer

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

the class SAFEARRAYTest method toArrayDirect.

private Object[] toArrayDirect(SAFEARRAY wrap) {
    Pointer dataPointer = wrap.accessData();
    long rowMax = wrap.getUBound(2);
    long columnMax = wrap.getUBound(1);
    VARIANT[] variantData = (VARIANT[]) new VARIANT(dataPointer).toArray((int) ((rowMax + 1) * (columnMax + 1)));
    Object[][] result = new Object[(int) (rowMax + 1)][(int) (columnMax + 1)];
    for (long i = 0; i <= rowMax; i++) {
        long rowOffset = i * columnMax;
        for (long j = 0; j <= columnMax; j++) {
            VARIANT cell = variantData[(int) (rowOffset + j)];
            result[(int) i][(int) j] = cell.getValue();
        }
    }
    wrap.unaccessData();
    return result;
}