tty.h

一个串行口通讯的例子程序

/******************************************************************************\
*       This is a part of the Microsoft Source Code Samples. 
*       Copyright (C) 1993 - 1997 Microsoft Corp.
*       All rights reserved. 
*       This source code is only intended as a supplement to 
*       Microsoft Development Tools and/or WinHelp documentation.
*       See these sources for detailed information regarding the 
*       Microsoft samples programs.
\******************************************************************************/


#define USECOMM      // yes, we need the COMM API

//#undef NO_STRICT    // be bold!

//#define HINSTANCE HANDLE

#include <windows.h>
#include <commdlg.h>
#include <string.h>
#include <io.h>
#include <memory.h>

#include "version.h"
//#include "resource.h"

// constant definitions

#define GWL_NPTTYINFO        0
#define TTYEXTRABYTES        sizeof( LONG )

#define ABOUTDLG_USEBITMAP  1

#define ATOM_TTYINFO       0x100

// hard coded maximum number of ports for device under Win32

#define MAXPORTS        4

// terminal size

#define MAXROWS         25
#define MAXCOLS         80

#define MAXBLOCK        80

#define MAXLEN_TEMPSTR  81

#define RXQUEUE         4096
#define TXQUEUE         4096

// cursor states

#define CS_HIDE         0x00
#define CS_SHOW         0x01

// Flow control flags

#define FC_DTRDSR       0x01
#define FC_RTSCTS       0x02
#define FC_XONXOFF      0x04

// ascii definitions

#define ASCII_BEL       0x07
#define ASCII_BS        0x08
#define ASCII_LF        0x0A
#define ASCII_CR        0x0D
#define ASCII_XON       0x11
#define ASCII_XOFF      0x13

// data structures

typedef struct tagTTYINFO
{
   HANDLE  idComDev ;
   BYTE    bPort, abScreen[ MAXROWS * MAXCOLS ] ;
   BOOL    fConnected, fXonXoff, fLocalEcho, fNewLine, fAutoWrap,
           fUseCNReceive, fDisplayErrors;
   BYTE    bByteSize, bFlowCtrl, bParity, bStopBits ;
   DWORD   dwBaudRate ;
   WORD    wCursorState ;
   HFONT   hTTYFont ;
   LOGFONT lfTTYFont ;
   DWORD   rgbFGColor ;
   int     xSize, ySize, xScroll, yScroll, xOffset, yOffset,
           nColumn, nRow, xChar, yChar ;
   HANDLE      hPostEvent, hWatchThread, hWatchEvent ;
   HWND        hTermWnd ;
   DWORD       dwThreadID ;
   OVERLAPPED  osWrite, osRead ;

} TTYINFO, NEAR *NPTTYINFO ;

// macros ( for easier readability )

#define GETHINST( x )  ((HINSTANCE) GetWindowLong( x, GWL_HINSTANCE ))
#define GETNPTTYINFO( x ) ((NPTTYINFO) GetWindowLong( x, GWL_NPTTYINFO ))
#define SETNPTTYINFO( x, y ) SetWindowLong( x, GWL_NPTTYINFO, (LONG) y )

#define COMDEV( x ) (x -> idComDev)
#define PORT( x )   (x -> bPort)
#define SCREEN( x ) (x -> abScreen)
#define CONNECTED( x ) (x -> fConnected)
#define XONXOFF( x ) (x -> fXonXoff)
#define LOCALECHO( x ) (x -> fLocalEcho)
#define NEWLINE( x ) (x -> fNewLine)
#define AUTOWRAP( x ) (x -> fAutoWrap)
#define BYTESIZE( x ) (x -> bByteSize)
#define FLOWCTRL( x ) (x -> bFlowCtrl)
#define PARITY( x ) (x -> bParity)
#define STOPBITS( x ) (x -> bStopBits)
#define BAUDRATE( x ) (x -> dwBaudRate)
#define CURSORSTATE( x ) (x -> wCursorState)
#define HTTYFONT( x ) (x -> hTTYFont)
#define LFTTYFONT( x ) (x -> lfTTYFont)
#define FGCOLOR( x ) (x -> rgbFGColor)
#define XSIZE( x ) (x -> xSize)
#define YSIZE( x ) (x -> ySize)
#define XSCROLL( x ) (x -> xScroll)
#define YSCROLL( x ) (x -> yScroll)
#define XOFFSET( x ) (x -> xOffset)
#define YOFFSET( x ) (x -> yOffset)
#define COLUMN( x ) (x -> nColumn)
#define ROW( x ) (x -> nRow)
#define XCHAR( x ) (x -> xChar)
#define YCHAR( x ) (x -> yChar )
#define USECNRECEIVE( x ) (x -> fUseCNReceive)
#define DISPLAYERRORS( x ) (x -> fDisplayErrors)

#define POSTEVENT( x ) (x -> hPostEvent)
#define TERMWND( x ) (x -> hTermWnd)
#define HTHREAD( x ) (x -> hWatchThread)
#define THREADID( x ) (x -> dwThreadID)
#define WRITE_OS( x ) (x -> osWrite)
#define READ_OS( x ) (x -> osRead)

#define SET_PROP( x, y, z )  SetProp( x, MAKEINTATOM( y ), z )
#define GET_PROP( x, y )     GetProp( x, MAKEINTATOM( y ) )
#define REMOVE_PROP( x, y )  RemoveProp( x, MAKEINTATOM( y ) )

// global stuff

HWND     hTTYWnd ;
char     gszTTYClass[] = "TTYWndClass" ;
char     gszAppName[] = "TTY" ;
HANDLE   ghAccel ;

DWORD    BaudTable[] =
         {
            CBR_110, CBR_300, CBR_600, CBR_1200, CBR_2400,
            CBR_4800, CBR_9600, CBR_14400, CBR_19200, CBR_38400,
            CBR_56000, CBR_128000, CBR_256000
         } ;

DWORD    ParityTable[] =
         {
            NOPARITY, EVENPARITY, ODDPARITY, MARKPARITY, SPACEPARITY
         } ;

DWORD    StopBitsTable[] =
         {
            ONESTOPBIT, ONE5STOPBITS, TWOSTOPBITS
         } ;

// CRT mappings to NT API

#define _fmemset   memset
#define _fmemmove  memmove

// function prototypes (private)

BOOL NEAR InitApplication( HANDLE ) ;
HWND NEAR InitInstance( HANDLE, int ) ;
LRESULT NEAR CreateTTYInfo( HWND ) ;
BOOL NEAR DestroyTTYInfo( HWND ) ;
BOOL NEAR ResetTTYScreen( HWND, NPTTYINFO ) ;
BOOL NEAR KillTTYFocus( HWND ) ;
BOOL NEAR PaintTTY( HWND ) ;
BOOL NEAR SetTTYFocus( HWND ) ;
BOOL NEAR ScrollTTYHorz( HWND, WORD, WORD ) ;
BOOL NEAR ScrollTTYVert( HWND, WORD, WORD ) ;
BOOL NEAR SizeTTY( HWND, WORD, WORD ) ;
BOOL NEAR ProcessTTYCharacter( HWND, BYTE ) ;
BOOL NEAR WriteTTYBlock( HWND, LPSTR, int ) ;
int NEAR ReadCommBlock( HWND, LPSTR, int ) ;
BOOL NEAR WriteCommBlock( HWND , LPSTR, DWORD);
BOOL NEAR MoveTTYCursor( HWND ) ;
BOOL NEAR OpenConnection( HWND ) ;
BOOL NEAR SetupConnection( HWND ) ;
BOOL NEAR CloseConnection( HWND ) ;
VOID NEAR GoModalDialogBoxParam( HINSTANCE, LPCSTR, HWND, DLGPROC, LPARAM ) ;
VOID NEAR FillComboBox( HINSTANCE, HWND, int, DWORD NEAR *, WORD, DWORD ) ;
BOOL NEAR SelectTTYFont( HWND ) ;
BOOL NEAR SettingsDlgInit( HWND ) ;
BOOL NEAR SettingsDlgTerm( HWND ) ;

// function prototypes (public)

LRESULT FAR PASCAL TTYWndProc( HWND, UINT, WPARAM, LPARAM ) ;
BOOL FAR PASCAL AboutDlgProc( HWND, UINT, WPARAM, LPARAM ) ;
BOOL FAR PASCAL SettingsDlgProc( HWND, UINT, WPARAM, LPARAM ) ;

DWORD FAR PASCAL CommWatchProc( LPSTR ) ;

//---------------------------------------------------------------------------
//  End of File: tty.h
//---------------------------------------------------------------------------