Click the Load button to browse your file system for a map document to load into the PageLayout control.
Press the left mouse button to zoom in, and the right mouse button to pan the main PageLayout control.
View the visible extent on the other PageLayout control.
If you installed the samples feature,
you will find the files associated with this sample in <Your Developer Kit install location>\DeveloperKit10.4\Java\Samples\ArcObjects.