Ranger provides an INI option that you can use to enable and disable the feed button. The option is located in a file called CapiOptions.ini.
This article will help you find the INI file on your operating system:
Where are the Ranger INI files located? (http://www.sbulletsupport.com/forum/index.php?topic=51.0)
Here is the option that you can change...
//-----------------------------------------------------------------------------------
// Feeding Section
//
// NOTE: This is only available on the SmartSource Pro.
//
// UseStartStopButton = false (default)
// true - After your application requesting StartFeeding()
// Feeding can be started and stopped by pressing the
// button on the top of the scanner.
//
//-----------------------------------------------------------------------------------
[Feeding]
UseStartStopButton=false
You can set this value by calling
Ranger.SetDriverOption("Feeding", "UseStartStopButton", "true"
);Ranger reads this option's value when you call
Ranger.EnableOptions().