Windows – Is there a way to fake a dual (second) monitor

Is there a way to fake a dual monitor for testing.  

I have only one monitor and I have to make an application that is suitable for two monitors.

The second monitor screen should appear as a window on my primary monitor.

Solution:

I made Windows think I had two connected displays like this:

1. Right click on the desktop, click ‘Screen Resolution’
2. Click ‘Detect’ on the next screen
3. Click ‘Another display not detected’ and under the multiple displays option select ‘Try to connect anyway on: VGA’
4. Click ‘Apply’
5. You can now enable your desktop to be extended as if you have a second screen plugged into your computer.

To view the second screen. This can be done via LogMeIn or TeamViewer on iOS, Android, Windows, Mac and I believe Linux:

I used TeamViewer as I already use it, so already have it installed

1. Opened TeamViewer on iPad
2. Connect to the computer setup previously
3. Using a ‘Monitor’ button at the bottom, select and show screen number 2.
4. iPad now shows screen 2 from PC.