|OnScreen with CrossScanner: for Windows; OnScreen Keyboards with Single Switch Access; Version 1.78 Release 4; User's Guide|
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The Active Window Scan is for advanced Windows users who may have numerous applications open or work with complex applications. By limiting the Scan Area to the current active window, scan speed can be greatly increased.
This limitation prevents selection of other Windows, the task bar, etc. Therefore, if the LineScan goes past the bottom of the Active Window, then it will reset to Full Screen and scan the entire screen from the top. The scan will reset to the Active Window on the next scan.
When OnScreen is used with CrossScanner, this feature is disabled - there are numerous issues when text input is being performed. From user suggestions, this feature is NOT available when OnScreen is used.