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如何在Java內讀取COM接口中所有的方法和屬性

package com.bovy.officehelper;

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 COMLister {

public static void main(String[] args) {

if (args.length == 0) {

System.out.println("Usage: java COMLister <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 + " : ");

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 + ") : " + " Signature : "

+ getTypeName(data.returnType) + " " + data.name + "("

+ argList + ")" + " Description : "

+ data.documentation + " Help File : "

+ data.helpFile + " ");

}

if (typeattr.cVars > 0)

System.out.println(" Variables for " + progID + " : ");

for (int i = 0; i < typeattr.cVars; i++) {

OlePropertyDescription data = auto.getPropertyDescription(i);

System.out.println("PROPERTY (id = " + data.id + ") :"

+ " Name : " + data.name + " Type : "

+ getTypeName(data.type) + " ");

}

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;

}

posted on 2008-05-18 09:15 風閱讀(880) 評論(0) 編輯收藏

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View Post

如何在Java內讀取COM接口中所有的方法和屬性