IOCTL_KEYBOARD_QUERY_TYPEMATIC IOCTL
The IOCTL_KEYBOARD_QUERY_TYPEMATIC request returns the keyboard typematic settings.
Major code
Input buffer
Parameters.DeviceIoControl.OutputBufferLength is set to a value greater than or equal to the size, in bytes, of a KEYBOARD_TYPEMATIC_PARAMETERS structure.
Input buffer length
The size of a KEYBOARD_TYPEMATIC_PARAMETERS structure.
Output buffer
AssociatedIrp.SystemBuffer points to a client-allocated output buffer that I8042prt uses to output a KEYBOARD_TYPEMATIC_PARAMETERS structure.
Output buffer length
The size of a KEYBOARD_TYPEMATIC_PARAMETERS structure.
Input / Output buffer
Input / Output buffer length
Status block
If the request is successful, the Information member is set to the size, in bytes, of a KEYBOARD_TYPEMATIC_PARAMETERS structure. Otherwise, Information is set to zero.
The Status member is set to one of the following values:
Requirements
| Header | ntddkbd.h (include Ntddkbd.h) |
See also
IOCTL_KEYBOARD_QUERY_ATTRIBUTES
IOCTL_KEYBOARD_QUERY_INDICATORS