connect

static VALUE
fole_s_connect(int argc, VALUE *argv, VALUE self)
{
    VALUE svr_name;
    VALUE others;
    HRESULT hr;
    CLSID   clsid;
    OLECHAR *pBuf;
    IDispatch *pDispatch;
    void *p;
    IUnknown *pUnknown;

    /* initialize to use OLE */
    ole_initialize();

    rb_scan_args(argc, argv, "1*", &svr_name, &others);
    StringValue(svr_name);
    if (rb_safe_level() > 0 && OBJ_TAINTED(svr_name)) {
        rb_raise(rb_eSecurityError, "insecure connection - `%s'",
                StringValuePtr(svr_name));
    }

    /* get CLSID from OLE server name */
    pBuf = ole_vstr2wc(svr_name);
    hr = CLSIDFromProgID(pBuf, &clsid);
    if(FAILED(hr)) {
        hr = CLSIDFromString(pBuf, &clsid);
    }
    SysFreeString(pBuf);
    if(FAILED(hr)) {
        return ole_bind_obj(svr_name, argc, argv, self);
    }

    hr = GetActiveObject(&clsid, 0, &pUnknown);
    if (FAILED(hr)) {
        ole_raise(hr, eWIN32OLERuntimeError,
                  "OLE server `%s' not running", StringValuePtr(svr_name));
    }
    hr = pUnknown->lpVtbl->QueryInterface(pUnknown, &IID_IDispatch, &p);
    pDispatch = p;
    if(FAILED(hr)) {
        OLE_RELEASE(pUnknown);
        ole_raise(hr, eWIN32OLERuntimeError,
                  "failed to create WIN32OLE server `%s'",
                  StringValuePtr(svr_name));
    }

    OLE_RELEASE(pUnknown);

    return create_win32ole_object(self, pDispatch, argc, argv);
}