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

Example 16 with Dispatch

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

the class ObjectFactory method createObject.

/**
	 * Creates a new COM object (CoCreateInstance) for the given progId and
	 * returns a ProxyObject for the given interface.
	 */
public <T> T createObject(Class<T> comInterface) {
    assert COMUtils.comIsInitialized() : "COM not initialized";
    ComObject comObectAnnotation = comInterface.getAnnotation(ComObject.class);
    if (null == comObectAnnotation) {
        throw new COMException("createObject: Interface must define a value for either clsId or progId via the ComInterface annotation");
    }
    final GUID guid = this.discoverClsId(comObectAnnotation);
    final PointerByReference ptrDisp = new PointerByReference();
    WinNT.HRESULT hr = Ole32.INSTANCE.CoCreateInstance(guid, null, WTypes.CLSCTX_SERVER, IDispatch.IID_IDISPATCH, ptrDisp);
    COMUtils.checkRC(hr);
    Dispatch d = new Dispatch(ptrDisp.getValue());
    T t = this.createProxy(comInterface, d);
    //CoCreateInstance returns a pointer to COM object with a +1 reference count, so we must drop one
    //Note: the createProxy adds one
    int n = d.Release();
    return t;
}

Example 17 with Dispatch

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

the class ObjectFactory method createProxy.

/**
	 * Creates a ProxyObject for the given interface and IDispatch pointer.
	 * 
	 */
public <T> T createProxy(Class<T> comInterface, IDispatch dispatch) {
    assert COMUtils.comIsInitialized() : "COM not initialized";
    ProxyObject jop = new ProxyObject(comInterface, dispatch, this);
    Object proxy = Proxy.newProxyInstance(comInterface.getClassLoader(), new Class<?>[] { comInterface }, jop);
    T result = comInterface.cast(proxy);
    return result;
}

Example 18 with Dispatch

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

the class ProxyObject method oleMethod.

/*
	 * @see com.sun.jna.platform.win32.COM.COMBindingBaseObject#oleMethod
	 */
protected HRESULT oleMethod(final int nType, final VARIANT.ByReference pvResult, final IDispatch pDisp, final DISPID dispId, VARIANT[] pArgs) throws COMException {
    assert COMUtils.comIsInitialized() : "COM not initialized";
    if (pDisp == null)
        throw new COMException("pDisp (IDispatch) parameter is null!");
    // variable declaration
    int _argsLen = 0;
    VARIANT[] _args = null;
    final DISPPARAMS.ByReference dp = new DISPPARAMS.ByReference();
    final EXCEPINFO.ByReference pExcepInfo = new EXCEPINFO.ByReference();
    final IntByReference puArgErr = new IntByReference();
    // make parameter reverse ordering as expected by COM runtime
    if ((pArgs != null) && (pArgs.length > 0)) {
        _argsLen = pArgs.length;
        _args = new VARIANT[_argsLen];
        int revCount = _argsLen;
        for (int i = 0; i < _argsLen; i++) {
            _args[i] = pArgs[--revCount];
        }
    }
    // Handle special-case for property-puts!
    if (nType == OleAuto.DISPATCH_PROPERTYPUT) {
        dp.setRgdispidNamedArgs(new DISPID[] { OaIdl.DISPID_PROPERTYPUT });
    }
    // Apply "fix" according to
    // https://www.delphitools.info/2013/04/30/gaining-visual-basic-ole-super-powers/
    // https://msdn.microsoft.com/en-us/library/windows/desktop/ms221486(v=vs.85).aspx
    //
    // Summary: there are methods in the word typelibrary that require both
    // PROPERTYGET _and_ METHOD to be set. With only one of these set the call
    // fails.
    //
    // The article from delphitools argues, that automation compatible libraries
    // need to be compatible with VisualBasic which does not distingish methods
    // and property getters and will set both flags always.
    //
    // The MSDN article advises this behaviour: "[...] Some languages cannot 
    // distinguish between retrieving a property and calling a method. In this 
    //case, you should set the flags DISPATCH_PROPERTYGET and DISPATCH_METHOD.
    // [...]"))
    //
    // This was found when trying to bind InchesToPoints from the _Application 
    // dispatch interface of the MS Word 15 type library
    //
    // The signature according the ITypeLib Viewer (OLE/COM Object Viewer):
    // [id(0x00000172), helpcontext(0x09700172)]
    // single InchesToPoints([in] single Inches);
    final int finalNType;
    if (nType == OleAuto.DISPATCH_METHOD || nType == OleAuto.DISPATCH_PROPERTYGET) {
        finalNType = OleAuto.DISPATCH_METHOD | OleAuto.DISPATCH_PROPERTYGET;
    } else {
        finalNType = nType;
    }
    // Build DISPPARAMS
    if (_argsLen > 0) {
        dp.setArgs(_args);
        // write 'DISPPARAMS' structure to memory
        dp.write();
    }
    HRESULT hr = pDisp.Invoke(dispId, new REFIID(Guid.IID_NULL), factory.getLCID(), new WinDef.WORD(finalNType), dp, pvResult, pExcepInfo, puArgErr);
    COMUtils.checkRC(hr, pExcepInfo, puArgErr);
    return hr;
}

Example 19 with Dispatch

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

the class ProxyObject method queryInterface.

@Override
public <T> T queryInterface(Class<T> comInterface) throws COMException {
    assert COMUtils.comIsInitialized() : "COM not initialized";
    try {
        ComInterface comInterfaceAnnotation = comInterface.getAnnotation(ComInterface.class);
        if (null == comInterfaceAnnotation) {
            throw new COMException("queryInterface: Interface must define a value for iid via the ComInterface annotation");
        }
        final IID iid = this.getIID(comInterfaceAnnotation);
        final PointerByReference ppvObject = new PointerByReference();
        HRESULT hr = ProxyObject.this.getRawDispatch().QueryInterface(new REFIID(iid), ppvObject);
        if (WinNT.S_OK.equals(hr)) {
            Dispatch dispatch = new Dispatch(ppvObject.getValue());
            T t = this.factory.createProxy(comInterface, dispatch);
            // QueryInterface returns a COM object pointer with a +1
            // reference, we must drop one,
            // Note: createProxy adds one;
            int n = dispatch.Release();
            return t;
        } else {
            String formatMessageFromHR = Kernel32Util.formatMessage(hr);
            throw new COMException("queryInterface: " + formatMessageFromHR);
        }
    } catch (Exception e) {
        throw new COMException("Error occured when trying to query for interface " + comInterface.getName(), e);
    }
}

Example 20 with Dispatch

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

the class IDispatchTest method testGetTypeInfoCount.

public void testGetTypeInfoCount() {
    Dispatch dispatch = this.createIDispatch();
    UINTByReference pctinfo = new UINTByReference();
    dispatch.GetTypeInfoCount(pctinfo);
    int intValue = pctinfo.getValue().intValue();
    assertEquals(1, intValue);
}