OLE and ActiveX example snippet
/*
* Copyright (c) 2000, 2003 IBM Corp. All rights reserved. This file is made
* available under the terms of the Common Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*/
/*
* 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 Main {
public static void main(String[] args) {
if (args.length == 0) {
System.out.println("Usage: java Main <program id>");
return;
}
String progID = args[0];
Shell shell = new Shell();
OleFrame frame = new OleFrame(shell, SWT.NONE);
OleControlSite site = null;
OleAutomation auto = null;
try {
site = new OleControlSite(frame, SWT.NONE, progID);
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;
}
}
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