96 lines
3.1 KiB
Java
96 lines
3.1 KiB
Java
package com.jacob.test.events;
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import com.jacob.activeX.ActiveXComponent;
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import com.jacob.com.ComException;
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import com.jacob.com.Dispatch;
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import com.jacob.com.DispatchEvents;
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import com.jacob.com.InvocationProxy;
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import com.jacob.com.Variant;
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import com.jacob.test.BaseTestCase;
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/**
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* This test was lifted from a forum posting and shows how you can't listen to
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* Excel events (added post 1.9.1 Eclipse Settings.) This also uses the 1.9.1
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* InvocationProxy to receive the events.
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* <p>
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* May need to run with some command line options (including from inside Eclipse).
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* Look in the docs area at the Jacob usage document for command line options.
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*/
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public class ExcelEventTest extends BaseTestCase {
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/**
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* load up excel, register for events and make stuff happen
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* @param args
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*/
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public void testExcelWithInvocationProxy() {
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String pid = "Excel.Application";
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String typeLibLocation = "C:\\Program Files\\Microsoft Office\\OFFICE11\\EXCEL.EXE";
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// Grab The Component.
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ActiveXComponent axc = new ActiveXComponent(pid);
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try {
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// Add a listener (doesn't matter what it is).
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DispatchEvents de;
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if (typeLibLocation == null) {
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de = new DispatchEvents(axc, new ExcelEvents());
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} else {
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de = new DispatchEvents(axc, new ExcelEvents(), pid,
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typeLibLocation);
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}
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if (de == null) {
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System.out
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.println("No exception thrown but no dispatch returned for Excel events");
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} else {
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// Yea!
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System.out.println("Successfully attached to " + pid);
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}
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System.out.println("version=" + axc.getProperty("Version"));
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System.out.println("version=" + Dispatch.get(axc, "Version"));
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axc.setProperty("Visible", true);
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Dispatch workbooks = axc.getPropertyAsComponent("Workbooks");
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Dispatch workbook = Dispatch.get(workbooks, "Add").toDispatch();
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Dispatch sheet = Dispatch.get(workbook, "ActiveSheet").toDispatch();
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Dispatch a1 = Dispatch.invoke(sheet, "Range", Dispatch.Get,
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new Object[] { "A1" }, new int[1]).toDispatch();
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Dispatch a2 = Dispatch.invoke(sheet, "Range", Dispatch.Get,
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new Object[] { "A2" }, new int[1]).toDispatch();
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System.out.println("Inserting value into A1");
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System.out.println("Inserting calculation 2xA1 into A2");
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Dispatch.put(a1, "Value", "123.456");
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Dispatch.put(a2, "Formula", "=A1*2");
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System.out.println("Retrieved a1 from excel:" + Dispatch.get(a1, "Value"));
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System.out.println("Retrieved a2 from excel:" + Dispatch.get(a2, "Value"));
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Variant f = new Variant(false);
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Dispatch.call(workbook, "Close", f);
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axc.invoke("Quit", new Variant[] {});
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} catch (ComException cfe) {
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cfe.printStackTrace();
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fail("Failed to attach to " + pid + ": "
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+ cfe.getMessage());
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}
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}
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public class ExcelEvents extends InvocationProxy {
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/**
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* Constructor so we can create an instance that implements invoke()
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*/
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public ExcelEvents() {
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}
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/**
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* Override the invoke method to log all the events so that we don't have to
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* implement all of the specific events.
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*/
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public Variant invoke(String methodName, Variant targetParameter[]) {
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System.out.println("Received event from Windows program" + methodName);
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return null;
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}
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}
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}
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