WIA Microdriver Commands
The following set of constants form the set of WIA microdriver commands. The commands are passed to the microdriver from the WIA Flatbed driver in the lCommand parameter of the MicroEntry function. The commands are grouped into the following categories:
Commands for microdrivers that support an automatic document feeder (ADF).
Commands for microdriver event support.
Commands that must be implemented by the microdriver.
Commands that can be implemented by the microdriver as enhancements to its basic operation.
These commands are defined in Wiamicro.h, and are available in Windows Me and in Windows XP and later.