Multiple Screens Registry Settings (Compact 2013)
3/26/2014
The registry stores information necessary to configure the system for applications and hardware devices. The registry also contains information that the operating system continually references during operation.
To specify the number of screens present in a multiple screen system, set the HKEY_LOCAL_MACHINE\SYSTEM\GDI\MONITORS\TOTAL MONITORS registry entry equal to the number of screens. You should only set this registry entry to a value between one and four because Windows Embedded Compact supports a maximum of four screens. The default value is one.
Examples
The following code example shows how to specify that the system has four screens.
[HKEY_LOCAL_MACHINE\SYSTEM\GDI\MONITORS]
"TOTAL MONITORS"=dword:4