How to render views exposed filter form in hook_form_alter

I got the form to display by calling views_exposed_form():

      $view = views_get_view('canned_search');
      $view->set_display('page_1');
      $view->init_handlers();
      $form_state = array(
        'view' => $view,
        'display' => $view->display_handler->display,
        'method' => 'get',
        'rerender' => TRUE,
        'no_redirect' => TRUE,
      );
      $exposed_filter_form = views_exposed_form(&$form_state);
      $form['exposed_filter_form'] = $exposed_filter_form;

Then, I specified a submit function and added two more textareas to the form:

      $form['exposed_filter_form']['#submit'] = 'feature_package_submit';
      $form['submit']['#weight'] = 10;
      //add textareas for displaying filter results and selected items for package
      $form['exposed_filter_form']['search_results'] = array(
        '#type' => 'textarea',
        '#title' => 'Results',
        '#weight' => -1,
      );
      $form['exposed_filter_form']['package_content'] = array(
        '#type' => 'textarea',
        '#title' => 'Package Content',
        '#weight' => -1,   
      );

The next trick is getting the search_results area to be filled with data returned by the view that uses the exposed filters. I'm assuming I'll need to call views_exposed_form_submit() to get the data, and then write it to the textarea. Is that the correct function to call?

Thanks.

OK, so that tells me how to get the filter data, and set it. It sounds like I read from $_GET and create $filters, and call $view->set_exposed_input.

How do I go from there? I'm using the multiselect widget to create my target field, so I want to put the results of the view in the left field when I submit the form. Do I specify my own submit function and then call views_exposed_form_submit? How do I get the data returned from the view so I can put it in that field?

Thanks.