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windows-nt/Source/XPSP1/NT/base/fs/utils/mode/cons.cxx

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1990 Microsoft Corporation
Module Name:
Con
Abstract:
Takes care of request involving the console ( CON: )
Author:
Ramon Juan San Andres (ramonsa) 26-Jun-1991
Notes:
This module issues direct calls to USER, because having ULIB doing
so causes programs to crash.
Revision History:
--*/
#include "mode.hxx"
#include "cons.hxx"
#include "keyboard.hxx"
#include "path.hxx"
#include "screen.hxx"
#include "stream.hxx"
#include "system.hxx"
//
// Local prototypes
//
BOOLEAN
ConStatus(
IN PREQUEST_HEADER Request,
IN BOOLEAN JustCodePage
);
BOOLEAN
ConCodePage(
IN PREQUEST_HEADER Request
);
BOOLEAN
ConSetRowCol(
IN PREQUEST_HEADER Request
);
BOOLEAN
ConSetTypematic(
IN PREQUEST_HEADER Request
);
BOOLEAN
ConHandler(
IN PREQUEST_HEADER Request
)
/*++
Routine Description:
Handles console requests
Arguments:
Request - Supplies pointer to request
Return Value:
None.
Notes:
--*/
{
BOOLEAN Served = TRUE; // TRUE if request served OK.
DebugPtrAssert( Request );
DebugAssert( Request->DeviceType == DEVICE_TYPE_CON );
//
// So the device is valid. Now serve the request
//
switch( Request->RequestType ) {
case REQUEST_TYPE_STATUS:
//
// Display state of CON device
//
Served = ConStatus( Request, FALSE );
break;
case REQUEST_TYPE_CODEPAGE_PREPARE:
case REQUEST_TYPE_CODEPAGE_SELECT:
case REQUEST_TYPE_CODEPAGE_REFRESH:
//
// Handle Codepage requests
//
Served = ConCodePage( Request );
break;
case REQUEST_TYPE_CODEPAGE_STATUS:
//
// Display codepage status
//
Served = ConStatus( Request, TRUE );
break;
case REQUEST_TYPE_CON_SET_ROWCOL:
//
// Set rows & columns
//
Served = ConSetRowCol( Request );
break;
case REQUEST_TYPE_CON_SET_TYPEMATIC:
//
// Set typematic rate
//
Served = ConSetTypematic( Request );
break;
default:
DisplayMessageAndExit( MODE_ERROR_INVALID_PARAMETER,
NULL,
(ULONG)EXIT_ERROR );
}
return Served;
}
BOOLEAN
ConStatus(
IN PREQUEST_HEADER Request,
IN BOOLEAN JustCodePage
)
/*++
Routine Description:
Displays status of a console
Arguments:
Request - Supplies pointer to request
JustCodePage- Supplies a flag which if TRUE means that only
the codepage status should be displayed.
Return Value:
BOOLEAN - TRUE if status displayed successfully,
FALSE otherwise
Notes:
--*/
{
SCREEN Screen;
PATH ConPath;
USHORT Rows;
USHORT Cols;
ULONG Delay = 0;
ULONG Speed = 0;
DSTRING CodepageName;
ULONG Language;
ULONG Country;
ULONG Codepage;
DSTRING CodepageString;
PSTR S1, S2;
if ( !ConPath.Initialize( (LPWSTR)L"CON" ) ) {
DisplayMessageAndExit( MODE_ERROR_NO_MEMORY, NULL, (ULONG)EXIT_ERROR );
}
//
// Write the Header
//
WriteStatusHeader( &ConPath );
if ( !Screen.Initialize() ) {
DisplayMessageAndExit( MODE_ERROR_NO_MEMORY, NULL, (ULONG)EXIT_ERROR );
}
if ( !JustCodePage ) {
//
// Display non-codepage information
//
Screen.QueryScreenSize( &Rows, &Cols );
Message->Set( MODE_MESSAGE_STATUS_LINES );
Message->Display( "%d", Rows );
Message->Set( MODE_MESSAGE_STATUS_COLS );
Message->Display( "%d", Cols );
if (!SystemParametersInfo( SPI_GETKEYBOARDSPEED, 0, (PVOID)&Speed, 0 )) {
ExitWithError( GetLastError() );
}
Message->Set( MODE_MESSAGE_STATUS_RATE );
Message->Display( "%d", Speed );
if (!SystemParametersInfo( SPI_GETKEYBOARDDELAY, 0, (PVOID)&Delay, 0 )) {
ExitWithError( GetLastError() );
}
Message->Set( MODE_MESSAGE_STATUS_DELAY );
Message->Display( "%d", Delay );
}
Message->Set( MODE_MESSAGE_STATUS_CODEPAGE );
Message->Display( "%d", Screen.QueryCodePage( ) );
Get_Standard_Output_Stream()->WriteChar( '\r' );
Get_Standard_Output_Stream()->WriteChar( '\n' );
return TRUE;
}
BOOLEAN
ConCodePage(
IN PREQUEST_HEADER Request
)
/*++
Routine Description:
Handles Codepage requests for the console
Arguments:
Request - Supplies pointer to request
Return Value:
BOOLEAN - TRUE if request handled successfully,
FALSE otherwise
Notes:
--*/
{
SCREEN Screen;
PREQUEST_DATA_CON_CODEPAGE_SELECT Data;
//
// We only process Codepage Select requests, all other requests
// are No-Ops. Note that the Codepage Status request is not
// processed here.
//
if ( Request->RequestType == REQUEST_TYPE_CODEPAGE_SELECT ) {
Data = (PREQUEST_DATA_CON_CODEPAGE_SELECT)&(((PCON_REQUEST)Request)->
Data.CpSelect);
if ( !Screen.Initialize() ) {
DisplayMessageAndExit( MODE_ERROR_NO_MEMORY, NULL, (ULONG)EXIT_ERROR );
}
if ( !Screen.SetCodePage( Data->Codepage ) ||
!Screen.SetOutputCodePage( Data->Codepage) ) {
DisplayMessageAndExit( MODE_ERROR_INVALID_CODEPAGE, NULL, (ULONG)EXIT_ERROR );
}
#ifdef FE_SB
LANGID LangId;
switch (GetConsoleOutputCP()) {
case 932:
LangId = MAKELANGID( LANG_JAPANESE, SUBLANG_DEFAULT );
break;
case 949:
LangId = MAKELANGID( LANG_KOREAN, SUBLANG_KOREAN );
break;
case 936:
LangId = MAKELANGID( LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED );
break;
case 950:
LangId = MAKELANGID( LANG_CHINESE, SUBLANG_CHINESE_TRADITIONAL );
break;
default:
LangId = PRIMARYLANGID(LANGIDFROMLCID( GetUserDefaultLCID() ));
if (LangId == LANG_JAPANESE ||
LangId == LANG_KOREAN ||
LangId == LANG_CHINESE ) {
LangId = MAKELANGID( LANG_ENGLISH, SUBLANG_ENGLISH_US );
}
else {
LangId = MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT );
}
break;
}
SetThreadLocale( MAKELCID(LangId, SORT_DEFAULT) );
#endif
ConStatus( Request, FALSE );
} else {
DisplayMessageAndExit( MODE_MESSAGE_NOT_NEEDED, NULL, EXIT_SUCCESS );
}
return TRUE;
}
BOOLEAN
ConSetRowCol(
IN PREQUEST_HEADER Request
)
/*++
Routine Description:
Sets number of rows and columns in the console window.
Arguments:
Request - Supplies pointer to request
Return Value:
BOOLEAN - TRUE if Number of Rows & Columns set successfully,
FALSE otherwise
Notes:
--*/
{
PREQUEST_DATA_CON_ROWCOL Data;
SCREEN Screen;
USHORT Rows;
USHORT Cols;
BOOLEAN IsFullScreen;
DebugPtrAssert( Request);
Data = (PREQUEST_DATA_CON_ROWCOL)&(((PCON_REQUEST)Request)->Data.RowCol);
if ( !Screen.Initialize() ) {
DisplayMessageAndExit( MODE_ERROR_NO_MEMORY, NULL, (ULONG)EXIT_ERROR );
}
if ( !Data->SetCol || !Data->SetLines ) {
//
// Since we don't have both values, take the current ones.
//
Screen.QueryScreenSize( &Rows, &Cols );
}
//
// Set the number of rows and columns
//
if ( Data->SetCol ) {
Cols = (USHORT)Data->Col;
}
if ( Data->SetLines ) {
Rows = (USHORT)Data->Lines;
}
if ( !Screen.ChangeScreenSize( Rows, Cols, &IsFullScreen ) ) {
//
// Cannot change the screen size
//
if ( IsFullScreen ) {
DisplayMessageAndExit( MODE_ERROR_FULL_SCREEN, NULL, (ULONG)EXIT_ERROR );
} else {
DisplayMessageAndExit( MODE_ERROR_INVALID_SCREEN_SIZE, NULL, (ULONG)EXIT_ERROR );
}
}
return TRUE;
}
BOOLEAN
ConSetTypematic(
IN PREQUEST_HEADER Request
)
/*++
Routine Description:
Sets thje typematic rate
Arguments:
DevicePath - Supplies pointer to path of device
Request - Supplies pointer to request
Return Value:
BOOLEAN - TRUE if typematic rate set successfully,
FALSE otherwise
Notes:
--*/
{
PREQUEST_DATA_CON_TYPEMATIC Data;
DebugPtrAssert( Request);
Data = (PREQUEST_DATA_CON_TYPEMATIC)&(((PCON_REQUEST)Request)->Data.Typematic);
if ( Data->SetRate ) {
if (!SystemParametersInfo( SPI_SETKEYBOARDSPEED, (UINT)Data->Rate, NULL, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE )) {
DisplayMessageAndExit( MODE_ERROR_INVALID_RATE, NULL, (ULONG)EXIT_ERROR);
}
}
if ( Data->SetDelay ) {
if (!SystemParametersInfo( SPI_SETKEYBOARDDELAY, (UINT)Data->Delay, NULL, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE )) {
DisplayMessageAndExit( MODE_ERROR_INVALID_DELAY, NULL, (ULONG)EXIT_ERROR);
}
}
return TRUE;
}
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