71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
/*++
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Copyright (c) 1998 Intel Corporation
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Module Name:
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cls.c
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Abstract:
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Revision History
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--*/
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#include "shell.h"
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EFI_STATUS
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InitializeCls (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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);
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EFI_DRIVER_ENTRY_POINT(InitializeCls)
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EFI_STATUS
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InitializeCls (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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UINTN Background;
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/*
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* Check to see if the app is to install as a "internal command"
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* to the shell
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*/
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InstallInternalShellCommand (
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ImageHandle, SystemTable, InitializeCls,
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L"cls", /* command */
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L"cls [background color]", /* command syntax */
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L"Clear screen", /* 1 line descriptor */
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NULL /* command help page */
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);
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/*
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* We are no being installed as an internal command driver, initialize
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* as an nshell app and run
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*/
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InitializeShellApplication (ImageHandle, SystemTable);
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/*
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*
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*/
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if ( SI->Argc > 1 ) {
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Background = xtoi(SI->Argv[1]);
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if (Background > EFI_LIGHTGRAY) {
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Background = EFI_BLACK;
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}
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ST->ConOut->SetAttribute(ST->ConOut,(ST->ConOut->Mode->Attribute & 0x0f) | (Background << 4));
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}
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ST->ConOut->ClearScreen(ST->ConOut);
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return EFI_SUCCESS;
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}
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