IOCTL_KEYBOARD_QUERY_INDICATORS IOCTL (ntddkbd.h)

The IOCTL_KEYBOARD_QUERY_INDICATORS request returns information about the keyboard indicators.

Input buffer

Parameters.DeviceIoControl.OutputBufferLength is set to a value greater than or equal to the size, in bytes, of a KEYBOARD_INDICATOR_PARAMETERS structure.

Input buffer length

The size of a KEYBOARD_INDICATOR_PARAMETERS structure.

Output buffer

AssociatedIrp.SystemBuffer points to a client-allocated buffer that I8042prt uses to output a KEYBOARD_INDICATOR_PARAMETERS structure.

Output buffer length

The size of a KEYBOARD_INDICATOR_PARAMETERS structure.

Requirements

   
Header ntddkbd.h (include Ntddkbd.h)

See also

IOCTL_KEYBOARD_QUERY_ATTRIBUTES

IOCTL_KEYBOARD_QUERY_INDICATOR_TRANSLATION

IOCTL_KEYBOARD_QUERY_TYPEMATIC

KEYBOARD_INDICATOR_PARAMETERS