multiple monitor support in application

What does it mean by multiple monitor suppor开发者_StackOverflowt for an application?

In the old days computers only ever had a single screen attached. Now they often have more than one attached and a desktop that spans those screens.

You need to make sure that your app:

• Maximises to the monitor that it is most closely associated. A badly written app might always maximise a window to the primary monitor.
• Remember which monitor it was displayed on when last run, and restore to that monitor when it starts up again.
• Avoid displaying on a monitor that is no longer available. For example, consider a laptop with an attached screen. If you show the window at coordinates for a screen that has been disconnected (e.g. laptop user on the move) then they won't be able to see it.

It all depends on the application.

For some applications it just means that that you could open a very big window.

For others it might mean that you could open two windows, one for each monitor. For example, Lightroom, lets you view a collection of thumbnails on one window and a full-sized image on the other.