10.6 Viewing Multiple Pages Simultaneously
As you've seen, the Display Manager typically enables you to view a single page at a time. Note that this is only default behavior: other options are available to you.
For example, if you wished to simultaneously view the Booster Station page and the Alarm page together at one time, you can do so. The steps that follow will demonstrate how.
1. Click the Menu button in the Display Manager's navigation bar. The menu expands and appears similar to the one shown below.
Figure 139
2. Expand the Process Equipment sub-tree (as shown above).
3. Right-click the Booster Station menu item. The Booster Station application page opens as a small-sized independent page that is resizable and mobile.
4. Right-click the Alarm page change button in the Display Manager's navigation bar. The Alarm page opens as a small-sized independent page that is resizable and mobile.
5. Close the small-sized pages by clicking the Windows close button appearing in their title bar.
Any page that does not have the "Never Display in Window" option set can be opened as a floating window.
The capabilities and flexibility of VTS does not stop there; VTS provides the option of splitting the screen into multiple horizontal and vertical sections so that you can view multiple Display Manager's each with a separate page on display. VTS also enables you to adjust the size of the Display Manager, supply it with a Windows title bar, and adjust many more useful options. For information on these capabilities, please refer to the chapter on customizing VTS in the VTS Developer's Guide.
Skills Achieved in Lesson 10
By completing Lesson 10, you learned the following:
• The menu can be customized for your application using the Menu Editor.
• The Menu Editor enables you to add pages, dividers, and sub-trees to your application's menu. Additionally, menu items can be dragged within the Menu Editor to new locations.
• Page change buttons are a handy way to quickly open frequently used pages.
• To add a page change button, you open the page you want added and click the Add To List button; to remove a page change button, you open the page whose page change button you wish to delete and click the Remove From List button.
• Page history buttons enable you to move backwards and forwards through VTS's memory of up to 15 recently viewed pages.
• Right-clicking a menu item or page change button opens the selected page as a small-sized, independent, mobile page.