/*
    Serial Mouse Tester
    Copyright (C) 2000-2007 Dmitry Brant
    http://dmitrybrant.com

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop

#include "BkgThread.h"
#include "main.h"
#pragma package(smart_init)
//---------------------------------------------------------------------------

__fastcall ComThread::ComThread() : TThread(false){
    Priority = tpLower;
    FreeOnTerminate = false;  // Don't automatically delete ourselves when terminated.
}
//---------------------------------------------------------------------------

void __fastcall ComThread::Execute(){
    DWORD dwErrors;
    COMSTAT cst;
    DWORD NumberOfBytesRead, message, fdwAction;
    HANDLE WinComHandle = MainForm->comHandle;
    HWND hwnd = (HWND)MainForm->Handle;
    int ptr=0;
    char comchar;

    ClearCommError(WinComHandle, (LPDWORD)&dwErrors, (LPCOMSTAT)&cst);
    switch (dwErrors){
    case 0:
    case CE_BREAK:
        break;
    default:
        return;
    };

    while(!Terminated){

        ClearCommError(WinComHandle, (LPDWORD)&dwErrors, (LPCOMSTAT)&cst);
        if(cst.cbInQue >= 3){
            if(!ReadFile(WinComHandle, (LPVOID)&message, 3, (LPDWORD)&NumberOfBytesRead, NULL)){
                return;
            }
            if(!NumberOfBytesRead){

            }else if((NumberOfBytesRead > 0) && (NumberOfBytesRead < 3)){

            }else if(!(((unsigned char*)&message)[0] & 64)){
                fdwAction  = PURGE_TXABORT | PURGE_RXABORT | PURGE_TXCLEAR | PURGE_RXCLEAR;
                PurgeComm(WinComHandle, fdwAction);
            }else{

                PostMessage(hwnd, MY_MESSAGE, (WPARAM)message, NULL);
                ptr = 0; message = 0;

            }
        }
    }
}
//------------------------------