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Merge pull request #595 from matthiasblaesing/com_hybrid_calling_conv…
…ention Allow calling COM methods/getters requirering hybrid calling (METHOD+PROPERTYGET convention)
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contrib/platform/test/com/sun/jna/platform/win32/COM/util/HybdridCOMInvocationTest.java
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| package com.sun.jna.platform.win32.COM.util; | ||
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| import com.sun.jna.platform.win32.COM.COMException; | ||
| import com.sun.jna.platform.win32.COM.COMLateBindingObject; | ||
| import com.sun.jna.platform.win32.COM.COMUtils; | ||
| import com.sun.jna.platform.win32.COM.Dispatch; | ||
| import com.sun.jna.platform.win32.COM.util.annotation.ComInterface; | ||
| import com.sun.jna.platform.win32.COM.util.annotation.ComMethod; | ||
| import com.sun.jna.platform.win32.COM.util.annotation.ComObject; | ||
| import com.sun.jna.platform.win32.Guid; | ||
| import com.sun.jna.platform.win32.Guid.CLSID; | ||
| import com.sun.jna.platform.win32.Guid.GUID; | ||
| import com.sun.jna.platform.win32.Guid.IID; | ||
| import com.sun.jna.platform.win32.Guid.REFIID; | ||
| import com.sun.jna.platform.win32.Kernel32; | ||
| import com.sun.jna.platform.win32.OaIdl; | ||
| import com.sun.jna.platform.win32.OaIdl.DISPID; | ||
| import com.sun.jna.platform.win32.Ole32; | ||
| import com.sun.jna.platform.win32.OleAuto; | ||
| import com.sun.jna.platform.win32.Variant; | ||
| import com.sun.jna.platform.win32.Variant.VARIANT; | ||
| import com.sun.jna.platform.win32.WTypes; | ||
| import com.sun.jna.platform.win32.WinDef; | ||
| import com.sun.jna.platform.win32.WinDef.UINT; | ||
| import com.sun.jna.platform.win32.WinDef.WORD; | ||
| import com.sun.jna.platform.win32.WinNT.HRESULT; | ||
| import com.sun.jna.ptr.IntByReference; | ||
| import com.sun.jna.ptr.PointerByReference; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
| import junit.framework.TestCase; | ||
| import org.junit.Test; | ||
| import static junit.framework.TestCase.assertEquals; | ||
| import static junit.framework.TestCase.assertTrue; | ||
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| /** | ||
| * In the word COM bindings it was determined, that some methods can't be called | ||
| * with only wFlags OleAuto.DISPATCH_METHOD or OleAuto.DISPATCH_PROPERTYGET. | ||
| * | ||
| * For these methods both flags need to be set. | ||
| * | ||
| * 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 | ||
| * | ||
| * A sample function is InchesToPoints from thw word typelibrary | ||
| */ | ||
| public class HybdridCOMInvocationTest extends TestCase { | ||
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| private static final Logger LOG = Logger.getLogger(HybdridCOMInvocationTest.class.getName()); | ||
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| private static final String CLSID_WORD_STRING = "{000209FF-0000-0000-C000-000000000046}"; | ||
| private static final String IID_APPLICATION_STRING = "{00020970-0000-0000-C000-000000000046}"; | ||
| private static final GUID CLSID_WORD = new GUID(CLSID_WORD_STRING); | ||
| private static final IID IID_APPLICATION = new IID(new GUID(IID_APPLICATION_STRING)); | ||
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| @Override | ||
| protected void tearDown() throws Exception { | ||
| super.tearDown(); | ||
| Ole32.INSTANCE.CoUninitialize(); | ||
| } | ||
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| @Override | ||
| protected void setUp() throws Exception { | ||
| // Initialize COM for this thread... | ||
| HRESULT hr = Ole32.INSTANCE.CoInitialize(null); | ||
| } | ||
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| @Test | ||
| public void testOfficeInvocationProblemCOMUtil() { | ||
| Factory fact = new Factory(); | ||
| Application app; | ||
| try { | ||
| app = fact.createObject(Application.class); | ||
| } catch (COMException ex) { | ||
| LOG.log(Level.INFO, "HybdridCOMInvocationTest test was not run, MS Word object could not be instantiated.", ex); | ||
| return; | ||
| } | ||
| // If this fails: remember: floats are not exact, if this happens replace | ||
| // with a range check | ||
| assertEquals(72.0f, app.InchesToPoints(1F)); | ||
| } | ||
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| @Test | ||
| public void testOfficeInvocationProblemCOMBindingObject() { | ||
| WordApplication app; | ||
| try { | ||
| app = new WordApplication(false); | ||
| } catch (COMException ex) { | ||
| LOG.log(Level.INFO, "HybdridCOMInvocationTest test was not run, MS Word object could not be instantiated.", ex); | ||
| return; | ||
| } | ||
| assertEquals(72.0f, app.InchesToPoints(1F)); | ||
| } | ||
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| public void testOfficeInvocationDemonstration() { | ||
| // THIS IS NOT A TEST | ||
| // | ||
| // This reproduces the problem by using the dispatch directly. | ||
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| PointerByReference pDispatch = new PointerByReference(); | ||
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| HRESULT hr = Ole32.INSTANCE.CoCreateInstance(CLSID_WORD, null, | ||
| WTypes.CLSCTX_SERVER, IID_APPLICATION, pDispatch); | ||
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| if(! COMUtils.SUCCEEDED(hr)) { | ||
| LOG.log(Level.INFO, "HybdridCOMInvocationTest test was not run, MS Word object could not be instantiated."); | ||
| return; | ||
| } | ||
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| Dispatch dp = new Dispatch(pDispatch.getValue()); | ||
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| // DispID of InchesToPoints | ||
| DISPID dispId = new OaIdl.DISPID(0x00000172); | ||
| // Interface _Application of MS Word type library | ||
| WinDef.LCID LOCALE_SYSTEM_DEFAULT = Kernel32.INSTANCE.GetSystemDefaultLCID(); | ||
| Variant.VARIANT.ByReference result = new Variant.VARIANT.ByReference(); | ||
| OaIdl.EXCEPINFO.ByReference pExcepInfo = new OaIdl.EXCEPINFO.ByReference(); | ||
| IntByReference puArgErr = new IntByReference(); | ||
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| WORD wFlagsMethod = new WinDef.WORD(OleAuto.DISPATCH_METHOD); | ||
| WORD wFlagsGet = new WinDef.WORD(OleAuto.DISPATCH_PROPERTYGET); | ||
| WORD wFlagsCombined = new WinDef.WORD(OleAuto.DISPATCH_METHOD | OleAuto.DISPATCH_PROPERTYGET); | ||
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| OleAuto.DISPPARAMS.ByReference pDispParams = new OleAuto.DISPPARAMS.ByReference(); | ||
| VARIANT[] params = new VARIANT[1]; | ||
| params[0] = new VARIANT(1f); | ||
| pDispParams.cArgs = new UINT(1); | ||
| pDispParams.cNamedArgs = new UINT(0); | ||
| pDispParams.rgvarg = new Variant.VariantArg.ByReference(params); | ||
| pDispParams.rgdispidNamedArgs = new OaIdl.DISPIDByReference(); | ||
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| // Call InchesToPoints as a method | ||
| hr = dp.Invoke(dispId, new REFIID(Guid.IID_NULL), LOCALE_SYSTEM_DEFAULT, wFlagsMethod, pDispParams, result, pExcepInfo, puArgErr); | ||
| assertTrue(COMUtils.FAILED(hr)); | ||
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| // Call InchesToPoints as a property getter | ||
| hr = dp.Invoke(dispId, new REFIID(Guid.IID_NULL), LOCALE_SYSTEM_DEFAULT, wFlagsGet, pDispParams, result, pExcepInfo, puArgErr); | ||
| assertTrue(COMUtils.FAILED(hr)); | ||
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| // Call InchesToPoints as a hybrid | ||
| hr = dp.Invoke(dispId, new REFIID(Guid.IID_NULL), LOCALE_SYSTEM_DEFAULT, wFlagsCombined, pDispParams, result, pExcepInfo, puArgErr); | ||
| assertTrue(COMUtils.SUCCEEDED(hr)); | ||
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| assertEquals(72.0f, result.floatValue()); | ||
| } | ||
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| @ComObject(clsId = CLSID_WORD_STRING) | ||
| public static interface Application extends IDispatch, _Application { | ||
| } | ||
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| @ComInterface(iid = IID_APPLICATION_STRING) | ||
| public static interface _Application { | ||
| @ComMethod | ||
| Float InchesToPoints(Float value); | ||
| } | ||
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| public static class WordApplication extends COMLateBindingObject { | ||
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| public WordApplication(boolean useActiveInstance) { | ||
| super(new CLSID(CLSID_WORD), useActiveInstance); | ||
| } | ||
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| public Float InchesToPoints(Float value) { | ||
| VARIANT.ByReference pvResult = new VARIANT.ByReference(); | ||
| this.oleMethod(OleAuto.DISPATCH_METHOD , pvResult, this.getIDispatch(), "InchesToPoints", new VARIANT[] {new VARIANT(value)}); | ||
| return pvResult.floatValue(); | ||
| } | ||
| } | ||
| } |
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