Intel Extensible Firmware Interface - Simple_Text_Output.clearscreen()

Console I/O Protocol
Version 1.02 12/12/00 169
7.5.7 SIMPLE_TEXT_OUTPUT.ClearScreen()
Summary
Clears the output device(s) display to the currently selected background color.
Prototype
EFI_STATUS
(EFIAPI *EFI_TEXT_CLEAR_SCREEN) (
IN SIMPLE_TEXT_OUTPUT_INTERFACE *This
);
Parameters
This A pointer to the SIMPLE_TEXT_OUTPUT_INTERFACE instance.
Type SIMPLE_TEXT_OUTPUT_INTERFACE is defined in Section 7.5.
Description
The ClearScreen() function clears the output device(s) display to the currently selected
background color. The cursor position is set to (0, 0).
Status Codes Returned
EFI_SUCCESS The operation completed successfully.
EFI_DEVICE_ERROR The device had an error and could not complete the request.
EFI_UNSUPPORTED The output device is not in a valid text mode.