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

Example 21 with Pointer

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

the class DdemlUtilTest method testPoke.

@Test
public void testPoke() throws InterruptedException {
    final String serviceName = "TestService";
    final String topicName = "TestTopic";
    final String itemName = "TestItem";
    final String testValue = "Execute�������";
    final CountDownLatch pokeReceived = new CountDownLatch(1);
    StandaloneDdeClient client = null;
    StandaloneDdeClient server = null;
    try {
        client = new StandaloneDdeClient() {

            {
                this.initialize(Ddeml.APPCMD_CLIENTONLY | Ddeml.CBF_SKIP_REGISTRATIONS | Ddeml.CBF_SKIP_UNREGISTRATIONS);
            }
        };
        server = new StandaloneDdeClient() {

            private final ConnectHandler connectHandler = new ConnectHandler() {

                public boolean onConnect(int transactionType, HSZ topic, HSZ service, Ddeml.CONVCONTEXT convcontext, boolean sameInstance) {
                    return topicName.equals(queryString(topic));
                }
            };

            private final PokeHandler pokeHandler = new PokeHandler() {

                @Override
                public int onPoke(int transactionType, int dataFormat, HCONV hconv, HSZ topic, HSZ item, Ddeml.HDDEDATA hdata) {
                    Pointer[] pointer = new Pointer[] { accessData(hdata, null) };
                    try {
                        String commandString = pointer[0].getWideString(0);
                        if (testValue.equals(commandString) && queryString(topic).equals(topicName) && queryString(item).equals(itemName)) {
                            pokeReceived.countDown();
                            return Ddeml.DDE_FACK;
                        }
                    } finally {
                        synchronized (pointer) {
                        }
                    }
                    return Ddeml.DDE_FNOTPROCESSED;
                }
            };

            {
                registerConnectHandler(connectHandler);
                registerPokeHandler(pokeHandler);
                this.initialize(Ddeml.APPCMD_FILTERINITS | Ddeml.CBF_SKIP_ALLNOTIFICATIONS);
            }
        };
        server.nameService(serviceName, Ddeml.DNS_REGISTER);
        IDdeConnection con = client.connect(serviceName, topicName, null);
        Memory mem = new Memory((testValue.length() + 1) * 2);
        mem.setWideString(0, testValue);
        con.poke(mem, (int) mem.size(), itemName, WinUser.CF_UNICODETEXT, 5 * 1000, null, null);
        assertTrue(pokeReceived.await(5, TimeUnit.SECONDS));
    } finally {
        closeQuitely(client);
        closeQuitely(server);
    }
}

Example 22 with Pointer

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

the class DdemlUtilTest method testAbandonTransaction.

@Test
public void testAbandonTransaction() throws InterruptedException {
    final String serviceName = "TestService";
    final String topicName = "TestTopic";
    final String testExecute = "Execute�������";
    final CountDownLatch allTransactionsInvoked = new CountDownLatch(1);
    final CountDownLatch executesProcessed = new CountDownLatch(3);
    StandaloneDdeClient client = null;
    StandaloneDdeClient server = null;
    try {
        client = new StandaloneDdeClient() {

            private final XactCompleteHandler xactCompleteHandler = new XactCompleteHandler() {

                public void onXactComplete(int transactionType, int dataFormat, HCONV hConv, HSZ topic, HSZ item, HDDEDATA hdata, ULONG_PTR transactionIdentifier, ULONG_PTR statusFlag) {
                    executesProcessed.countDown();
                }
            };

            {
                registerXactCompleteHandler(xactCompleteHandler);
                this.initialize(Ddeml.APPCMD_CLIENTONLY | Ddeml.CBF_SKIP_REGISTRATIONS | Ddeml.CBF_SKIP_UNREGISTRATIONS);
            }
        };
        server = new StandaloneDdeClient() {

            private final ConnectHandler connectHandler = new ConnectHandler() {

                public boolean onConnect(int transactionType, HSZ topic, HSZ service, Ddeml.CONVCONTEXT convcontext, boolean sameInstance) {
                    return topicName.equals(queryString(topic));
                }
            };

            private final ExecuteHandler executeHandler = new ExecuteHandler() {

                public int onExecute(int transactionType, HCONV hconv, HSZ topic, Ddeml.HDDEDATA commandStringData) {
                    try {
                        if (!allTransactionsInvoked.await(5, TimeUnit.SECONDS)) {
                            return Ddeml.DDE_FNOTPROCESSED;
                        }
                        Pointer[] pointer = new Pointer[] { accessData(commandStringData, null) };
                        try {
                            String commandString = pointer[0].getWideString(0);
                            if (testExecute.equals(commandString) && queryString(topic).equals(topicName)) {
                                return Ddeml.DDE_FACK;
                            }
                        } finally {
                            synchronized (pointer) {
                                unaccessData(commandStringData);
                            }
                        }
                        return Ddeml.DDE_FNOTPROCESSED;
                    } catch (InterruptedException ex) {
                        Logger.getLogger(DdemlUtilTest.class.getName()).log(Level.SEVERE, null, ex);
                        return Ddeml.DDE_FNOTPROCESSED;
                    }
                }
            };

            {
                registerConnectHandler(connectHandler);
                registerExecuteHandler(executeHandler);
                this.initialize(Ddeml.APPCMD_FILTERINITS | Ddeml.CBF_SKIP_ALLNOTIFICATIONS);
            }
        };
        server.nameService(serviceName, Ddeml.DNS_REGISTER);
        IDdeConnection con = client.connect(serviceName, topicName, null);
        WinDef.DWORDByReference result = new WinDef.DWORDByReference();
        con.execute(testExecute, Ddeml.TIMEOUT_ASYNC, result, null);
        con.execute(testExecute, Ddeml.TIMEOUT_ASYNC, result, null);
        int transactionId2 = result.getValue().intValue();
        con.execute(testExecute, Ddeml.TIMEOUT_ASYNC, result, null);
        con.abandonTransaction(transactionId2);
        allTransactionsInvoked.countDown();
        assertFalse(executesProcessed.await(2, TimeUnit.SECONDS));
        assertThat(executesProcessed.getCount(), is(1L));
    } finally {
        closeQuitely(client);
        closeQuitely(server);
    }
}

Example 23 with Pointer

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

the class Kernel32ConsoleTest method testGetConsoleMode.

@Test
@Ignore("For some reason we get hr=6 - ERROR_INVALID_HANDLE - even though the documentation stipulates that GetStdHandle can be used")
public void testGetConsoleMode() {
    for (int nHandle : new int[] { Wincon.STD_INPUT_HANDLE, Wincon.STD_OUTPUT_HANDLE, Wincon.STD_ERROR_HANDLE }) {
        HANDLE hndl = INSTANCE.GetStdHandle(nHandle);
        Pointer ptr = hndl.getPointer();
        if (ptr == Pointer.NULL) {
            // can happen for interactive desktop application
            continue;
        }
        IntByReference lpMode = new IntByReference(0);
        assertCallSucceeded("GetConsoleMode(" + nHandle + ")", INSTANCE.GetConsoleMode(hndl, lpMode));
        int dwMode = lpMode.getValue();
        // don't really care what the mode is just want to make sure API can be called
        assertCallSucceeded("SetConsoleMode(" + nHandle + "," + dwMode + ")", INSTANCE.SetConsoleMode(hndl, dwMode));
    }
}

Example 24 with Pointer

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

the class Kernel32Test method testWriteProcessMemory.

public void testWriteProcessMemory() {
    Kernel32 kernel = Kernel32.INSTANCE;
    boolean successWrite = kernel.WriteProcessMemory(null, Pointer.NULL, Pointer.NULL, 1, null);
    assertFalse(successWrite);
    assertEquals(kernel.GetLastError(), WinError.ERROR_INVALID_HANDLE);
    ByteBuffer bufDest = ByteBuffer.allocateDirect(4);
    bufDest.put(new byte[] { 0, 1, 2, 3 });
    ByteBuffer bufSrc = ByteBuffer.allocateDirect(4);
    bufSrc.put(new byte[] { 5, 10, 15, 20 });
    Pointer ptrSrc = Native.getDirectBufferPointer(bufSrc);
    Pointer ptrDest = Native.getDirectBufferPointer(bufDest);
    HANDLE selfHandle = kernel.GetCurrentProcess();
    //Write only the first three
    kernel.WriteProcessMemory(selfHandle, ptrDest, ptrSrc, 3, null);
    assertEquals(bufDest.get(0), 5);
    assertEquals(bufDest.get(1), 10);
    assertEquals(bufDest.get(2), 15);
    assertEquals(bufDest.get(3), 3);
}

Example 25 with Pointer

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

the class Kernel32UtilTest method testFreeGlobalMemory.

public void testFreeGlobalMemory() {
    try {
        Pointer ptr = new Pointer(0xFFFFFFFFFFFFFFFFL);
        Kernel32Util.freeGlobalMemory(ptr);
        fail("Unexpected success to free bad global memory");
    } catch (Win32Exception e) {
        HRESULT hr = e.getHR();
        int code = W32Errors.HRESULT_CODE(hr.intValue());
        assertEquals("Mismatched failure reason code", WinError.ERROR_INVALID_HANDLE, code);
    }
}