* ext/win32ole/win32ole.c: separate src of WIN32OLE_TYPELIB from

  win32ole.c

* ext/win32ole/win32ole.h: ditto.
* ext/win32ole/win32ole_typelib.c: ditto.
* ext/win32ole/win32ole_typelib.h: ditto.
* ext/win32ole/depend: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47088 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 818 insertions, 0 deletions

diff --git a/ext/win32ole/win32ole_typelib.c b/ext/win32ole/win32ole_typelib.c
new file mode 100644
index 0000000000..2becbfdf45
--- /dev/null
+++ b/ext/win32ole/win32ole_typelib.c
@@ -0,0 +1,818 @@
+#include "win32ole.h"
+
+struct oletypelibdata {
+    ITypeLib *pTypeLib;
+};
+
+static VALUE reg_get_typelib_file_path(HKEY hkey);
+static VALUE oletypelib_path(VALUE guid, VALUE version);
+static HRESULT oletypelib_from_guid(VALUE guid, VALUE version, ITypeLib **ppTypeLib);
+static VALUE foletypelib_s_typelibs(VALUE self);
+static VALUE oletypelib_set_member(VALUE self, ITypeLib *pTypeLib);
+static void oletypelib_free(struct oletypelibdata *poletypelib);
+static VALUE foletypelib_s_allocate(VALUE klass);
+static VALUE oletypelib_search_registry(VALUE self, VALUE typelib);
+static void oletypelib_get_libattr(ITypeLib *pTypeLib, TLIBATTR **ppTLibAttr);
+static VALUE oletypelib_search_registry2(VALUE self, VALUE args);
+static VALUE foletypelib_initialize(VALUE self, VALUE args);
+static VALUE foletypelib_guid(VALUE self);
+static VALUE foletypelib_name(VALUE self);
+static VALUE make_version_str(VALUE major, VALUE minor);
+static VALUE foletypelib_version(VALUE self);
+static VALUE foletypelib_major_version(VALUE self);
+static VALUE foletypelib_minor_version(VALUE self);
+static VALUE foletypelib_path(VALUE self);
+static VALUE foletypelib_visible(VALUE self);
+static VALUE foletypelib_library_name(VALUE self);
+static VALUE ole_types_from_typelib(ITypeLib *pTypeLib, VALUE classes);
+static VALUE typelib_file_from_typelib(VALUE ole);
+static VALUE typelib_file_from_clsid(VALUE ole);
+static VALUE foletypelib_ole_types(VALUE self);
+static VALUE foletypelib_inspect(VALUE self);
+
+static VALUE
+reg_get_typelib_file_path(HKEY hkey)
+{
+    VALUE path = Qnil;
+    path = reg_get_val2(hkey, "win64");
+    if (path != Qnil) {
+        return path;
+    }
+    path = reg_get_val2(hkey, "win32");
+    if (path != Qnil) {
+        return path;
+    }
+    path = reg_get_val2(hkey, "win16");
+    return path;
+}
+
+static VALUE
+oletypelib_path(VALUE guid, VALUE version)
+{
+    int k;
+    LONG err;
+    HKEY hkey;
+    HKEY hlang;
+    VALUE lang;
+    VALUE path = Qnil;
+
+    VALUE key = rb_str_new2("TypeLib\\");
+    rb_str_concat(key, guid);
+    rb_str_cat2(key, "\\");
+    rb_str_concat(key, version);
+
+    err = reg_open_vkey(HKEY_CLASSES_ROOT, key, &hkey);
+    if (err != ERROR_SUCCESS) {
+        return Qnil;
+    }
+    for(k = 0; path == Qnil; k++) {
+        lang = reg_enum_key(hkey, k);
+        if (lang == Qnil)
+            break;
+        err = reg_open_vkey(hkey, lang, &hlang);
+        if (err == ERROR_SUCCESS) {
+            path = reg_get_typelib_file_path(hlang);
+            RegCloseKey(hlang);
+        }
+    }
+    RegCloseKey(hkey);
+    return path;
+}
+
+static HRESULT
+oletypelib_from_guid(VALUE guid, VALUE version, ITypeLib **ppTypeLib)
+{
+    VALUE path;
+    OLECHAR *pBuf;
+    HRESULT hr;
+    path = oletypelib_path(guid, version);
+    if (path == Qnil) {
+        return E_UNEXPECTED;
+    }
+    pBuf = ole_vstr2wc(path);
+    hr = LoadTypeLibEx(pBuf, REGKIND_NONE, ppTypeLib);
+    SysFreeString(pBuf);
+    return hr;
+}
+
+ITypeLib *
+itypelib(VALUE self)
+{
+    struct oletypelibdata *ptlib;
+    Data_Get_Struct(self, struct oletypelibdata, ptlib);
+    return ptlib->pTypeLib;
+}
+
+/*
+ * Document-class: WIN32OLE_TYPELIB
+ *
+ *   <code>WIN32OLE_TYPELIB</code> objects represent OLE tyblib information.
+ */
+
+/*
+ *  call-seq:
+ *
+ *     WIN32OLE_TYPELIB.typelibs
+ *
+ *  Returns the array of WIN32OLE_TYPELIB object.
+ *
+ *     tlibs = WIN32OLE_TYPELIB.typelibs
+ *
+ */
+static VALUE
+foletypelib_s_typelibs(VALUE self)
+{
+    HKEY htypelib, hguid;
+    DWORD i, j;
+    LONG err;
+    VALUE guid;
+    VALUE version;
+    VALUE name = Qnil;
+    VALUE typelibs = rb_ary_new();
+    VALUE typelib = Qnil;
+    HRESULT hr;
+    ITypeLib *pTypeLib;
+
+    err = reg_open_key(HKEY_CLASSES_ROOT, "TypeLib", &htypelib);
+    if(err != ERROR_SUCCESS) {
+        return typelibs;
+    }
+    for(i = 0; ; i++) {
+        guid = reg_enum_key(htypelib, i);
+        if (guid == Qnil)
+            break;
+        err = reg_open_vkey(htypelib, guid, &hguid);
+        if (err != ERROR_SUCCESS)
+            continue;
+        for(j = 0; ; j++) {
+            version = reg_enum_key(hguid, j);
+            if (version == Qnil)
+                break;
+            if ( (name = reg_get_val2(hguid, StringValuePtr(version))) != Qnil ) {
+                hr = oletypelib_from_guid(guid, version, &pTypeLib);
+                if (SUCCEEDED(hr)) {
+                    typelib = create_win32ole_typelib(pTypeLib);
+                    rb_ary_push(typelibs, typelib);
+                }
+            }
+        }
+        RegCloseKey(hguid);
+    }
+    RegCloseKey(htypelib);
+    return typelibs;
+}
+
+static VALUE
+oletypelib_set_member(VALUE self, ITypeLib *pTypeLib)
+{
+    struct oletypelibdata *ptlib;
+    Data_Get_Struct(self, struct oletypelibdata, ptlib);
+    ptlib->pTypeLib = pTypeLib;
+    return self;
+}
+
+static void
+oletypelib_free(struct oletypelibdata *poletypelib)
+{
+    OLE_FREE(poletypelib->pTypeLib);
+    free(poletypelib);
+}
+
+static VALUE
+foletypelib_s_allocate(VALUE klass)
+{
+    struct oletypelibdata *poletypelib;
+    VALUE obj;
+    ole_initialize();
+    obj = Data_Make_Struct(klass, struct oletypelibdata, 0, oletypelib_free, poletypelib);
+    poletypelib->pTypeLib = NULL;
+    return obj;
+}
+
+VALUE
+create_win32ole_typelib(ITypeLib *pTypeLib)
+{
+    VALUE obj = foletypelib_s_allocate(cWIN32OLE_TYPELIB);
+    oletypelib_set_member(obj, pTypeLib);
+    return obj;
+}
+
+static VALUE
+oletypelib_search_registry(VALUE self, VALUE typelib)
+{
+    HKEY htypelib, hguid, hversion;
+    DWORD i, j;
+    LONG err;
+    VALUE found = Qfalse;
+    VALUE tlib;
+    VALUE guid;
+    VALUE ver;
+    HRESULT hr;
+    ITypeLib *pTypeLib;
+
+    err = reg_open_key(HKEY_CLASSES_ROOT, "TypeLib", &htypelib);
+    if(err != ERROR_SUCCESS) {
+        return Qfalse;
+    }
+    for(i = 0; !found; i++) {
+        guid = reg_enum_key(htypelib, i);
+        if (guid == Qnil)
+            break;
+        err = reg_open_vkey(htypelib, guid, &hguid);
+        if (err != ERROR_SUCCESS)
+            continue;
+        for(j = 0; found == Qfalse; j++) {
+            ver = reg_enum_key(hguid, j);
+            if (ver == Qnil)
+                break;
+            err = reg_open_vkey(hguid, ver, &hversion);
+            if (err != ERROR_SUCCESS)
+                continue;
+            tlib = reg_get_val(hversion, NULL);
+            if (tlib == Qnil) {
+                RegCloseKey(hversion);
+                continue;
+            }
+            if (rb_str_cmp(typelib, tlib) == 0) {
+                hr = oletypelib_from_guid(guid, ver, &pTypeLib);
+                if (SUCCEEDED(hr)) {
+                    oletypelib_set_member(self, pTypeLib);
+                    found = Qtrue;
+                }
+            }
+            RegCloseKey(hversion);
+        }
+        RegCloseKey(hguid);
+    }
+    RegCloseKey(htypelib);
+    return  found;
+}
+
+static void
+oletypelib_get_libattr(ITypeLib *pTypeLib, TLIBATTR **ppTLibAttr)
+{
+    HRESULT hr;
+    hr = pTypeLib->lpVtbl->GetLibAttr(pTypeLib, ppTLibAttr);
+    if (FAILED(hr)) {
+        ole_raise(hr, eWIN32OLERuntimeError,
+		  "failed to get library attribute(TLIBATTR) from ITypeLib");
+    }
+}
+
+static VALUE
+oletypelib_search_registry2(VALUE self, VALUE args)
+{
+    HKEY htypelib, hguid, hversion;
+    double fver;
+    DWORD j;
+    LONG err;
+    VALUE found = Qfalse;
+    VALUE tlib;
+    VALUE ver;
+    VALUE version_str;
+    VALUE version = Qnil;
+    VALUE typelib = Qnil;
+    HRESULT hr;
+    ITypeLib *pTypeLib;
+
+    VALUE guid = rb_ary_entry(args, 0);
+    version_str = make_version_str(rb_ary_entry(args, 1), rb_ary_entry(args, 2));
+
+    err = reg_open_key(HKEY_CLASSES_ROOT, "TypeLib", &htypelib);
+    if(err != ERROR_SUCCESS) {
+        return Qfalse;
+    }
+    err = reg_open_vkey(htypelib, guid, &hguid);
+    if (err != ERROR_SUCCESS) {
+        RegCloseKey(htypelib);
+        return Qfalse;
+    }
+    if (version_str != Qnil) {
+        err = reg_open_vkey(hguid, version_str, &hversion);
+        if (err == ERROR_SUCCESS) {
+            tlib = reg_get_val(hversion, NULL);
+            if (tlib != Qnil) {
+                typelib = tlib;
+                version = version_str;
+            }
+        }
+        RegCloseKey(hversion);
+    } else {
+        fver = 0.0;
+	    for(j = 0; ;j++) {
+	        ver = reg_enum_key(hguid, j);
+	        if (ver == Qnil)
+	            break;
+	        err = reg_open_vkey(hguid, ver, &hversion);
+	        if (err != ERROR_SUCCESS)
+	            continue;
+	        tlib = reg_get_val(hversion, NULL);
+	        if (tlib == Qnil) {
+	             RegCloseKey(hversion);
+	             continue;
+	        }
+	        if (fver < atof(StringValuePtr(ver))) {
+	            fver = atof(StringValuePtr(ver));
+	            version = ver;
+	            typelib = tlib;
+	        }
+	        RegCloseKey(hversion);
+	    }
+    }
+    RegCloseKey(hguid);
+    RegCloseKey(htypelib);
+    if (typelib != Qnil) {
+	hr = oletypelib_from_guid(guid, version, &pTypeLib);
+	if (SUCCEEDED(hr)) {
+	    found = Qtrue;
+	    oletypelib_set_member(self, pTypeLib);
+	}
+    }
+    return found;
+}
+
+
+/*
+ * call-seq:
+ *    WIN32OLE_TYPELIB.new(typelib [, version1, version2]) -> WIN32OLE_TYPELIB object
+ *
+ * Returns a new WIN32OLE_TYPELIB object.
+ *
+ * The first argument <i>typelib</i>  specifies OLE type library name or GUID or
+ * OLE library file.
+ * The second argument is major version or version of the type library.
+ * The third argument is minor version.
+ * The second argument and third argument are optional.
+ * If the first argument is type library name, then the second and third argument
+ * are ignored.
+ *
+ *     tlib1 = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     tlib2 = WIN32OLE_TYPELIB.new('{00020813-0000-0000-C000-000000000046}')
+ *     tlib3 = WIN32OLE_TYPELIB.new('{00020813-0000-0000-C000-000000000046}', 1.3)
+ *     tlib4 = WIN32OLE_TYPELIB.new('{00020813-0000-0000-C000-000000000046}', 1, 3)
+ *     tlib5 = WIN32OLE_TYPELIB.new("C:\\WINNT\\SYSTEM32\\SHELL32.DLL")
+ *     puts tlib1.name  # -> 'Microsoft Excel 9.0 Object Library'
+ *     puts tlib2.name  # -> 'Microsoft Excel 9.0 Object Library'
+ *     puts tlib3.name  # -> 'Microsoft Excel 9.0 Object Library'
+ *     puts tlib4.name  # -> 'Microsoft Excel 9.0 Object Library'
+ *     puts tlib5.name  # -> 'Microsoft Shell Controls And Automation'
+ *
+ */
+static VALUE
+foletypelib_initialize(VALUE self, VALUE args)
+{
+    VALUE found = Qfalse;
+    VALUE typelib = Qnil;
+    int len = 0;
+    OLECHAR * pbuf;
+    ITypeLib *pTypeLib;
+    HRESULT hr = S_OK;
+
+    len = RARRAY_LEN(args);
+    if (len < 1 || len > 3) {
+        rb_raise(rb_eArgError, "wrong number of arguments (%d for 1..3)", len);
+    }
+
+    typelib = rb_ary_entry(args, 0);
+
+    SafeStringValue(typelib);
+
+    found = oletypelib_search_registry(self, typelib);
+    if (found == Qfalse) {
+        found = oletypelib_search_registry2(self, args);
+    }
+    if (found == Qfalse) {
+        pbuf = ole_vstr2wc(typelib);
+        hr = LoadTypeLibEx(pbuf, REGKIND_NONE, &pTypeLib);
+        SysFreeString(pbuf);
+        if (SUCCEEDED(hr)) {
+            found = Qtrue;
+            oletypelib_set_member(self, pTypeLib);
+        }
+    }
+
+    if (found == Qfalse) {
+        rb_raise(eWIN32OLERuntimeError, "not found type library `%s`",
+                 StringValuePtr(typelib));
+    }
+    return self;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#guid -> The guid string.
+ *
+ *  Returns guid string which specifies type library.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     guid = tlib.guid # -> '{00020813-0000-0000-C000-000000000046}'
+ */
+static VALUE
+foletypelib_guid(VALUE self)
+{
+    ITypeLib *pTypeLib;
+    OLECHAR bstr[80];
+    VALUE guid = Qnil;
+    int len;
+    TLIBATTR *pTLibAttr;
+
+    pTypeLib = itypelib(self);
+    oletypelib_get_libattr(pTypeLib, &pTLibAttr);
+    len = StringFromGUID2(&pTLibAttr->guid, bstr, sizeof(bstr)/sizeof(OLECHAR));
+    if (len > 3) {
+        guid = ole_wc2vstr(bstr, FALSE);
+    }
+    pTypeLib->lpVtbl->ReleaseTLibAttr(pTypeLib, pTLibAttr);
+    return guid;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#name -> The type library name
+ *
+ *  Returns the type library name.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     name = tlib.name # -> 'Microsoft Excel 9.0 Object Library'
+ */
+static VALUE
+foletypelib_name(VALUE self)
+{
+    ITypeLib *pTypeLib;
+    HRESULT hr;
+    BSTR bstr;
+    VALUE name;
+    pTypeLib = itypelib(self);
+    hr = pTypeLib->lpVtbl->GetDocumentation(pTypeLib, -1,
+                                            NULL, &bstr, NULL, NULL);
+
+    if (FAILED(hr)) {
+        ole_raise(hr, eWIN32OLERuntimeError, "failed to get name from ITypeLib");
+    }
+    name = WC2VSTR(bstr);
+    return name;
+}
+
+static VALUE
+make_version_str(VALUE major, VALUE minor)
+{
+    VALUE version_str = Qnil;
+    VALUE minor_str = Qnil;
+    if (major == Qnil) {
+        return Qnil;
+    }
+    version_str = rb_String(major);
+    if (minor != Qnil) {
+        minor_str = rb_String(minor);
+        rb_str_cat2(version_str, ".");
+        rb_str_append(version_str, minor_str);
+    }
+    return version_str;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#version -> The type library version.
+ *
+ *  Returns the type library version.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     puts tlib.version #-> 1.3
+ */
+static VALUE
+foletypelib_version(VALUE self)
+{
+    TLIBATTR *pTLibAttr;
+    VALUE major;
+    VALUE minor;
+    ITypeLib *pTypeLib;
+
+    pTypeLib = itypelib(self);
+    oletypelib_get_libattr(pTypeLib, &pTLibAttr);
+    major = INT2NUM(pTLibAttr->wMajorVerNum);
+    minor = INT2NUM(pTLibAttr->wMinorVerNum);
+    pTypeLib->lpVtbl->ReleaseTLibAttr(pTypeLib, pTLibAttr);
+    return rb_Float(make_version_str(major, minor));
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#major_version -> The type library major version.
+ *
+ *  Returns the type library major version.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     puts tlib.major_version # -> 1
+ */
+static VALUE
+foletypelib_major_version(VALUE self)
+{
+    TLIBATTR *pTLibAttr;
+    VALUE major;
+    ITypeLib *pTypeLib;
+    pTypeLib = itypelib(self);
+    oletypelib_get_libattr(pTypeLib, &pTLibAttr);
+
+    major =  INT2NUM(pTLibAttr->wMajorVerNum);
+    pTypeLib->lpVtbl->ReleaseTLibAttr(pTypeLib, pTLibAttr);
+    return major;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#minor_version -> The type library minor version.
+ *
+ *  Returns the type library minor version.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     puts tlib.minor_version # -> 3
+ */
+static VALUE
+foletypelib_minor_version(VALUE self)
+{
+    TLIBATTR *pTLibAttr;
+    VALUE minor;
+    ITypeLib *pTypeLib;
+    pTypeLib = itypelib(self);
+    oletypelib_get_libattr(pTypeLib, &pTLibAttr);
+    minor =  INT2NUM(pTLibAttr->wMinorVerNum);
+    pTypeLib->lpVtbl->ReleaseTLibAttr(pTypeLib, pTLibAttr);
+    return minor;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#path -> The type library file path.
+ *
+ *  Returns the type library file path.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     puts tlib.path #-> 'C:\...\EXCEL9.OLB'
+ */
+static VALUE
+foletypelib_path(VALUE self)
+{
+    TLIBATTR *pTLibAttr;
+    HRESULT hr = S_OK;
+    BSTR bstr;
+    LCID lcid = cWIN32OLE_lcid;
+    VALUE path;
+    ITypeLib *pTypeLib;
+
+    pTypeLib = itypelib(self);
+    oletypelib_get_libattr(pTypeLib, &pTLibAttr);
+    hr = QueryPathOfRegTypeLib(&pTLibAttr->guid,
+	                       pTLibAttr->wMajorVerNum,
+			       pTLibAttr->wMinorVerNum,
+			       lcid,
+			       &bstr);
+    if (FAILED(hr)) {
+	pTypeLib->lpVtbl->ReleaseTLibAttr(pTypeLib, pTLibAttr);
+	ole_raise(hr, eWIN32OLERuntimeError, "failed to QueryPathOfRegTypeTypeLib");
+    }
+
+    pTypeLib->lpVtbl->ReleaseTLibAttr(pTypeLib, pTLibAttr);
+    path = WC2VSTR(bstr);
+    return path;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#visible?
+ *
+ *  Returns true if the type library information is not hidden.
+ *  If wLibFlags of TLIBATTR is 0 or LIBFLAG_FRESTRICTED or LIBFLAG_FHIDDEN,
+ *  the method returns false, otherwise, returns true.
+ *  If the method fails to access the TLIBATTR information, then
+ *  WIN32OLERuntimeError is raised.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     tlib.visible? # => true
+ */
+static VALUE
+foletypelib_visible(VALUE self)
+{
+    ITypeLib *pTypeLib = NULL;
+    VALUE visible = Qtrue;
+    TLIBATTR *pTLibAttr;
+
+    pTypeLib = itypelib(self);
+    oletypelib_get_libattr(pTypeLib, &pTLibAttr);
+
+    if ((pTLibAttr->wLibFlags == 0) ||
+        (pTLibAttr->wLibFlags & LIBFLAG_FRESTRICTED) ||
+        (pTLibAttr->wLibFlags & LIBFLAG_FHIDDEN)) {
+        visible = Qfalse;
+    }
+    pTypeLib->lpVtbl->ReleaseTLibAttr(pTypeLib, pTLibAttr);
+    return visible;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#library_name
+ *
+ *  Returns library name.
+ *  If the method fails to access library name, WIN32OLERuntimeError is raised.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     tlib.library_name # => Excel
+ */
+static VALUE
+foletypelib_library_name(VALUE self)
+{
+    HRESULT hr;
+    ITypeLib *pTypeLib = NULL;
+    VALUE libname = Qnil;
+    BSTR bstr;
+
+    pTypeLib = itypelib(self);
+    hr = pTypeLib->lpVtbl->GetDocumentation(pTypeLib, -1,
+                                            &bstr, NULL, NULL, NULL);
+    if (FAILED(hr)) {
+        ole_raise(hr, eWIN32OLERuntimeError, "failed to get library name");
+    }
+    libname = WC2VSTR(bstr);
+    return libname;
+}
+
+static VALUE
+ole_types_from_typelib(ITypeLib *pTypeLib, VALUE classes)
+{
+    long count;
+    int i;
+    HRESULT hr;
+    BSTR bstr;
+    ITypeInfo *pTypeInfo;
+    VALUE type;
+
+    count = pTypeLib->lpVtbl->GetTypeInfoCount(pTypeLib);
+    for (i = 0; i < count; i++) {
+        hr = pTypeLib->lpVtbl->GetDocumentation(pTypeLib, i,
+                                                &bstr, NULL, NULL, NULL);
+        if (FAILED(hr))
+            continue;
+
+        hr = pTypeLib->lpVtbl->GetTypeInfo(pTypeLib, i, &pTypeInfo);
+        if (FAILED(hr))
+            continue;
+
+        type = create_win32ole_type(pTypeInfo, WC2VSTR(bstr));
+
+        rb_ary_push(classes, type);
+        OLE_RELEASE(pTypeInfo);
+    }
+    return classes;
+}
+
+static VALUE
+typelib_file_from_typelib(VALUE ole)
+{
+    HKEY htypelib, hclsid, hversion, hlang;
+    double fver;
+    DWORD i, j, k;
+    LONG err;
+    BOOL found = FALSE;
+    VALUE typelib;
+    VALUE file = Qnil;
+    VALUE clsid;
+    VALUE ver;
+    VALUE lang;
+
+    err = reg_open_key(HKEY_CLASSES_ROOT, "TypeLib", &htypelib);
+    if(err != ERROR_SUCCESS) {
+        return Qnil;
+    }
+    for(i = 0; !found; i++) {
+        clsid = reg_enum_key(htypelib, i);
+        if (clsid == Qnil)
+            break;
+        err = reg_open_vkey(htypelib, clsid, &hclsid);
+        if (err != ERROR_SUCCESS)
+            continue;
+        fver = 0;
+        for(j = 0; !found; j++) {
+            ver = reg_enum_key(hclsid, j);
+            if (ver == Qnil)
+                break;
+            err = reg_open_vkey(hclsid, ver, &hversion);
+			if (err != ERROR_SUCCESS || fver > atof(StringValuePtr(ver)))
+                continue;
+            fver = atof(StringValuePtr(ver));
+            typelib = reg_get_val(hversion, NULL);
+            if (typelib == Qnil)
+                continue;
+            if (rb_str_cmp(typelib, ole) == 0) {
+                for(k = 0; !found; k++) {
+                    lang = reg_enum_key(hversion, k);
+                    if (lang == Qnil)
+                        break;
+                    err = reg_open_vkey(hversion, lang, &hlang);
+                    if (err == ERROR_SUCCESS) {
+                        if ((file = reg_get_typelib_file_path(hlang)) != Qnil)
+                            found = TRUE;
+                        RegCloseKey(hlang);
+                    }
+                }
+            }
+            RegCloseKey(hversion);
+        }
+        RegCloseKey(hclsid);
+    }
+    RegCloseKey(htypelib);
+    return  file;
+}
+
+static VALUE
+typelib_file_from_clsid(VALUE ole)
+{
+    HKEY hroot, hclsid;
+    LONG err;
+    VALUE typelib;
+    char path[MAX_PATH + 1];
+
+    err = reg_open_key(HKEY_CLASSES_ROOT, "CLSID", &hroot);
+    if (err != ERROR_SUCCESS) {
+        return Qnil;
+    }
+    err = reg_open_key(hroot, StringValuePtr(ole), &hclsid);
+    if (err != ERROR_SUCCESS) {
+        RegCloseKey(hroot);
+        return Qnil;
+    }
+    typelib = reg_get_val2(hclsid, "InprocServer32");
+    RegCloseKey(hroot);
+    RegCloseKey(hclsid);
+    if (typelib != Qnil) {
+        ExpandEnvironmentStrings(StringValuePtr(typelib), path, sizeof(path));
+        path[MAX_PATH] = '\0';
+        typelib = rb_str_new2(path);
+    }
+    return typelib;
+}
+
+VALUE
+typelib_file(VALUE ole)
+{
+    VALUE file = typelib_file_from_clsid(ole);
+    if (file != Qnil) {
+        return file;
+    }
+    return typelib_file_from_typelib(ole);
+}
+
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#ole_types -> The array of WIN32OLE_TYPE object included the type library.
+ *
+ *  Returns the type library file path.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     classes = tlib.ole_types.collect{|k| k.name} # -> ['AddIn', 'AddIns' ...]
+ */
+static VALUE
+foletypelib_ole_types(VALUE self)
+{
+    ITypeLib *pTypeLib = NULL;
+    VALUE classes = rb_ary_new();
+    pTypeLib = itypelib(self);
+    ole_types_from_typelib(pTypeLib, classes);
+    return classes;
+}
+
+/*
+ *  call-seq:
+ *     WIN32OLE_TYPELIB#inspect -> String
+ *
+ *  Returns the type library name with class name.
+ *
+ *     tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
+ *     tlib.inspect # => "<#WIN32OLE_TYPELIB:Microsoft Excel 9.0 Object Library>"
+ */
+static VALUE
+foletypelib_inspect(VALUE self)
+{
+    return default_inspect(self, "WIN32OLE_TYPELIB");
+}
+
+void
+Init_win32ole_typelib()
+{
+    cWIN32OLE_TYPELIB = rb_define_class("WIN32OLE_TYPELIB", rb_cObject);
+    rb_define_singleton_method(cWIN32OLE_TYPELIB, "typelibs", foletypelib_s_typelibs, 0);
+    rb_define_alloc_func(cWIN32OLE_TYPELIB, foletypelib_s_allocate);
+    rb_define_method(cWIN32OLE_TYPELIB, "initialize", foletypelib_initialize, -2);
+    rb_define_method(cWIN32OLE_TYPELIB, "guid", foletypelib_guid, 0);
+    rb_define_method(cWIN32OLE_TYPELIB, "name", foletypelib_name, 0);
+    rb_define_method(cWIN32OLE_TYPELIB, "version", foletypelib_version, 0);
+    rb_define_method(cWIN32OLE_TYPELIB, "major_version", foletypelib_major_version, 0);
+    rb_define_method(cWIN32OLE_TYPELIB, "minor_version", foletypelib_minor_version, 0);
+    rb_define_method(cWIN32OLE_TYPELIB, "path", foletypelib_path, 0);
+    rb_define_method(cWIN32OLE_TYPELIB, "ole_types", foletypelib_ole_types, 0);
+    rb_define_alias(cWIN32OLE_TYPELIB, "ole_classes", "ole_types");
+    rb_define_method(cWIN32OLE_TYPELIB, "visible?", foletypelib_visible, 0);
+    rb_define_method(cWIN32OLE_TYPELIB, "library_name", foletypelib_library_name, 0);
+    rb_define_alias(cWIN32OLE_TYPELIB, "to_s", "name");
+    rb_define_method(cWIN32OLE_TYPELIB, "inspect", foletypelib_inspect, 0);
+}