通过IDispatch接口，获得ActiveX的属性，方法

/**//*
 * OLE and ActiveX example snippet: browse the typelibinfo for a program id
 * 
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/i.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTException;
import org.eclipse.swt.internal.ole.win32.TYPEATTR;
import org.eclipse.swt.ole.win32.OLE;
import org.eclipse.swt.ole.win32.OleAutomation;
import org.eclipse.swt.ole.win32.OleControlSite;
import org.eclipse.swt.ole.win32.OleFrame;
import org.eclipse.swt.ole.win32.OleFunctionDescription;
import org.eclipse.swt.ole.win32.OlePropertyDescription;
import org.eclipse.swt.widgets.Shell;

public class ListOLE {

	public static void main(String[] args) {

		String progID = "CAMERA.CameraCtrl.1";

		Shell shell = new Shell();

		OleFrame frame = new OleFrame(shell, SWT.NONE);
		OleControlSite site = null;
		OleAutomation auto = null;
		try {
			site = new OleControlSite(frame, SWT.NONE, "ShockwaveFlash.ShockwaveFlash");
			auto = new OleAutomation(site);
		} catch (SWTException ex) {
			System.out.println("Unable to open type library for " + progID);
			return;
		}

		TYPEATTR typeattr = auto.getTypeInfoAttributes();
		if (typeattr != null) {
			if (typeattr.cFuncs > 0)
				System.out.println("Functions for " + progID + " :\n");
			for (int i = 0; i < typeattr.cFuncs; i++) {
				OleFunctionDescription data = auto.getFunctionDescription(i);
				String argList = "";
				int firstOptionalArgIndex = data.args.length
						- data.optionalArgCount;
				for (int j = 0; j < data.args.length; j++) {
					argList += "[";
					if (j >= firstOptionalArgIndex)
						argList += "optional, ";
					argList += getDirection(data.args[j].flags) + "] "
							+ getTypeName(data.args[j].type) + " "
							+ data.args[j].name;
					if (j < data.args.length - 1)
						argList += ", ";
				}
				System.out.println(getInvokeKind(data.invokeKind) + " (id = "
						+ data.id + ") : " + "\n\tSignature   : "
						+ getTypeName(data.returnType) + " " + data.name + "("
						+ argList + ")" + "\n\tDescription : "
						+ data.documentation + "\n\tHelp File   : "
						+ data.helpFile + "\n");
			}

			if (typeattr.cVars > 0)
				System.out.println("\n\nVariables for " + progID + " :\n");
			for (int i = 0; i < typeattr.cVars; i++) {
				OlePropertyDescription data = auto.getPropertyDescription(i);
				System.out.println("PROPERTY (id = " + data.id + ") :"
						+ "\n\tName : " + data.name + "\n\tType : "
						+ getTypeName(data.type) + "\n");
			}
		}

		auto.dispose();
		shell.dispose();
	}

	private static String getTypeName(int type) {
		switch (type) {
		case OLE.VT_BOOL:
			return "boolean";
		case OLE.VT_R4:
			return "float";
		case OLE.VT_R8:
			return "double";
		case OLE.VT_I4:
			return "int";
		case OLE.VT_DISPATCH:
			return "IDispatch";
		case OLE.VT_UNKNOWN:
			return "IUnknown";
		case OLE.VT_I2:
			return "short";
		case OLE.VT_BSTR:
			return "String";
		case OLE.VT_VARIANT:
			return "Variant";
		case OLE.VT_CY:
			return "Currency";
		case OLE.VT_DATE:
			return "Date";
		case OLE.VT_UI1:
			return "unsigned char";
		case OLE.VT_UI4:
			return "unsigned int";
		case OLE.VT_USERDEFINED:
			return "UserDefined";
		case OLE.VT_HRESULT:
			return "int";
		case OLE.VT_VOID:
			return "void";

		case OLE.VT_BYREF | OLE.VT_BOOL:
			return "boolean *";
		case OLE.VT_BYREF | OLE.VT_R4:
			return "float *";
		case OLE.VT_BYREF | OLE.VT_R8:
			return "double *";
		case OLE.VT_BYREF | OLE.VT_I4:
			return "int *";
		case OLE.VT_BYREF | OLE.VT_DISPATCH:
			return "IDispatch *";
		case OLE.VT_BYREF | OLE.VT_UNKNOWN:
			return "IUnknown *";
		case OLE.VT_BYREF | OLE.VT_I2:
			return "short *";
		case OLE.VT_BYREF | OLE.VT_BSTR:
			return "String *";
		case OLE.VT_BYREF | OLE.VT_VARIANT:
			return "Variant *";
		case OLE.VT_BYREF | OLE.VT_CY:
			return "Currency *";
		case OLE.VT_BYREF | OLE.VT_DATE:
			return "Date *";
		case OLE.VT_BYREF | OLE.VT_UI1:
			return "unsigned char *";
		case OLE.VT_BYREF | OLE.VT_UI4:
			return "unsigned int *";
		case OLE.VT_BYREF | OLE.VT_USERDEFINED:
			return "UserDefined *";
		}
		return "unknown " + type;
	}

	private static String getDirection(int direction) {
		String dirString = "";
		boolean comma = false;
		if ((direction & OLE.IDLFLAG_FIN) != 0) {
			dirString += "in";
			comma = true;
		}
		if ((direction & OLE.IDLFLAG_FOUT) != 0) {
			if (comma)
				dirString += ", ";
			dirString += "out";
			comma = true;
		}
		if ((direction & OLE.IDLFLAG_FLCID) != 0) {
			if (comma)
				dirString += ", ";
			dirString += "lcid";
			comma = true;
		}
		if ((direction & OLE.IDLFLAG_FRETVAL) != 0) {
			if (comma)
				dirString += ", ";
			dirString += "retval";
		}

		return dirString;
	}

	private static String getInvokeKind(int invKind) {
		switch (invKind) {
		case OLE.INVOKE_FUNC:
			return "METHOD";
		case OLE.INVOKE_PROPERTYGET:
			return "PROPERTY GET";
		case OLE.INVOKE_PROPERTYPUT:
			return "PROPERTY PUT";
		case OLE.INVOKE_PROPERTYPUTREF:
			return "PROPERTY PUT BY REF";
		}
		return "unknown " + invKind;
	}
}