Examples with Dispatch com.sun.jna.platform.win32.COM.Dispatch used on opensource projects

Example 21 with Dispatch

use of com.sun.jna.platform.win32.COM.Dispatch in project jna by java-native-access.

the class ComEventCallbacksObjectFactory_Test method testComEventCallback.

@Test
public void testComEventCallback() {
    DWebBrowserEvents2_Listener listener = new DWebBrowserEvents2_Listener();
    CallbackProxy proxy = new CallbackProxy(factory, DWebBrowserEvents2.class, listener);
    REFIID refiid = new REFIID(new IID(DWebBrowserEvents2.IID));
    // precondition: the structures for the listenedToRiid and
    // refiid have to be different (else the PointerType#equals would
    // be enough
    assertFalse(proxy.listenedToRiid.getPointer().equals(refiid.getPointer()));
    // Neverthe less, the QueryInterface method has to return the
    // correct pointer (the IID is relevant, not its wrapper
    PointerByReference interfacePointer = new PointerByReference();
    // Check the "business" interface
    HRESULT hr = proxy.QueryInterface(refiid, interfacePointer);
    assertTrue(COMUtils.SUCCEEDED(hr));
    assertEquals(interfacePointer.getValue(), proxy.getPointer());
    // IUnknown must be implemented
    hr = proxy.QueryInterface(new REFIID(IID_IUNKNOWN), interfacePointer);
    assertTrue(COMUtils.SUCCEEDED(hr));
    assertEquals(interfacePointer.getValue(), proxy.getPointer());
    // Currently only Dispatch based callbacks are supported,
    // so this interface must be present to
    hr = proxy.QueryInterface(new REFIID(IID_IDISPATCH), interfacePointer);
    assertTrue(COMUtils.SUCCEEDED(hr));
    assertEquals(interfacePointer.getValue(), proxy.getPointer());
    // Negative check -- this has to fail, the IID should not be
    // assigned
    hr = proxy.QueryInterface(new REFIID(new IID("{00000000-0000-0000-C000-000000000000}")), interfacePointer);
    assertTrue(COMUtils.FAILED(hr));
}