OLE and ActiveX example: browse the typelibinfo for a program id
/*
* 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/index.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 Snippet81 {
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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