Re: closing the window automatically
- From: "SaiKamesh Rathinasabapathy" <rsaikamesh gmail com>
- To: "Daniel Elstner" <daniel kitta googlemail com>
- Cc: gtkmm-list gnome org
- Subject: Re: closing the window automatically
- Date: Mon, 19 Feb 2007 18:12:31 +0530
Sorry I forgot to attach my sample program in the first mail. here I have attached that.
Hi Daniel,
Thank you very much once again.Even
though you don't know what my problem is, you are trying to help me.
Thank you very much. Here I have attached a sample code which explains
what I am trying to do and what the problem I am facing. I have given
comments to explain my problem. please have a look at this program and
try to help me!.
On 2/19/07, SaiKamesh Rathinasabapathy <rsaikamesh gmail com> wrote:
On 2/18/07, Daniel Elstner <
daniel kitta googlemail com> wrote:
Am Samstag, den 17.02.2007, 19:19 +0530 schrieb SaiKamesh
Rathinasabapathy:
> I have already written a program in c++, which reads the data from the
> serial port.
> So I have no problem in reading the data from the barcode reader which
> is connected to the serial port.
Okay, then I don't know what your problem is. The thing is, the answer
to your question very much depends on the context. Without any context,
it's nearly impossible to help you. The answer might boil down to "hide
it" or "delete it", but I reckon you'd have figured that out by yourself
if it really was that trivial.
So, why don't you send us a sample program that roughly shows what
you're actually trying to do? And please CC to the list, too.
> My problem is, when I run my application a window should be opened,
> that has a label on it "Scan the barcode using scanner". then I have
> to read the barcode, after reading the barcode the window should
> automatically be closed, then a new window should be opened.
> I don't know how to close the first window automatically, after
> reading the barcode. plz help me to so this.
> If possible send me sample program.
I already said that I don't have such a sample program.
--Daniel
Thank you very much once again.Even though you don't know what my problem is, you are trying to help me. Thank you very much. Here I have attached a sample code which explains what I am trying to do and what the problem I am facing. I have given comments to explain my problem. please have a look at this program and try to help me!.
#include <termios.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/signal.h>
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
//library for reading the infos from the config file
#include "simpleini/SimpleIni.h"
//--------------------------------------------------
#include <mysql.h>
#define host "localhost"
#define username "root"
#define password "admin"
#define db "IrisDB"
#define FALSE 0
#define TRUE 1
volatile int STOP = FALSE;
int error;
using namespace std;
#include <gtkmm.h>
class DeviceInterface : public Gtk::Window
{
public:
long BAUD/*for device*/, DATABITS, STOPBITS, PARITYON, PARITY, BAUDRATE/*for keyboard*/;
int BaudRate, Data_Bits, Stop_Bits, Parity;
static int wait_flag;
int fd, tty;
struct termios oldtio, newtio; //place for old and new port settings for serial port
struct termios oldkey, newkey;//place tor old and new port settings for keyboardteletype
struct sigaction saio; //definition of signal action
Gtk::VBox vbox;
Gtk::Entry entry;// Entry which is used to display the login info.
Gtk::Window wind;//window which is going to be displayed first,this window should be closed after recieving the signal from the serial port
DeviceInterface()
{
//the following are placed in second window------------
maximize();
add(vbox);
vbox.pack_start(entry, Gtk::PACK_SHRINK);
show_all_children();
//-----------------------------------------------------
CSimpleIniA ini(false, false, false);
SI_Error rc = ini.LoadFile("ExampleConfig.ini");
//reading Barcode Reader info from config file ------
BaudRate = atoi(ini.GetValue("Barcode//for first windowReader Configuration", "BaudRate", NULL));
Data_Bits = atoi(ini.GetValue("BarcodeReader Configuration", "Data_Bits", NULL));
Stop_Bits = atoi(ini.GetValue("BarcodeReader Configuration", "Stop_Bits", NULL ));
Parity = atoi(ini.GetValue("BarcodeReader Configuration", "Parity", NULL));
//----------------------------------------------------
//reading Keyboard info from config file ------------
BAUDRATE = atol(ini.GetValue("Keyboard Configuration", "BAUDRATE", NULL));
//----------------------------------------------------
wait_flag = TRUE;
}
/*----------------------------------------------------------------------------*
* Serial port: initialise io_port, set baud rate, set data bits, one stop bit*/
int rs_initialise (int io_port/*, const long int BaudRate, const char parity*/)
{
// set new port settings for non-canonical input processing //must be NOCTTY
newkey.c_cflag = BAUDRATE | CRTSCTS | CS8 | CLOCAL | CREAD;
newkey.c_iflag = IGNPAR;
newkey.c_oflag = 0;
newkey.c_lflag = 0; //ICANON;
newkey.c_cc[VMIN]=1;
newkey.c_cc[VTIME]=0;
tcflush(tty, TCIFLUSH);
tcsetattr(tty,TCSANOW,&newkey);
switch (BaudRate)
{
case 38400:
default:
BAUD = B38400;
break;
case 19200:
BAUD = B19200;
break;
case 9600:
BAUD = B9600;
break;
case 4800:
BAUD = B4800;
break;
case 2400:
BAUD = B2400;
break;
case 1800:
BAUD = B1800;
break;
case 1200:
BAUD = B1200;
break;
case 600:
BAUD = B600;
break;
case 300:
BAUD = B300;
break;
case 200:
BAUD = B200;
break;
case 150:
BAUD = B150;
break;
case 134:
BAUD = B134;
break;
case 110:
BAUD = B110;
break;
case 75:
BAUD = B75;
break;
case 50:
BAUD = B50;
break;
} //end of switch baud_rate
switch (Data_Bits)
{
case 8:
default:
DATABITS = CS8;
break;
case 7:
DATABITS = CS7;
break;
case 6:
DATABITS = CS6;
break;
case 5:
DATABITS = CS5;
break;
} //end of switch data_bits
switch (Stop_Bits)
{
case 1:
default:
STOPBITS = 0;
break;
case 2:
STOPBITS = CSTOPB;
break;
} //end of switch stop bits
switch (Parity)
{
case 0:
default: //none
PARITYON = 0;
PARITY = 0;
break;
case 1: //odd
PARITYON = PARENB;
PARITY = PARODD;
break;
case 2: //even
PARITYON = PARENB;
PARITY = 0;
break;
} //end of switch parity
//open the device(com port) to be non-blocking (read will return immediately)
fd = open("/dev/ttyS0", O_RDWR | O_NOCTTY | O_NONBLOCK);
if (fd < 0)
{
perror("/dev/ttyS0");
return 0;
}
//install the serial handler before making the device asynchronous
saio.sa_handler = signal_handler_IO;
sigemptyset(&saio.sa_mask); //saio.sa_mask = 0;
saio.sa_flags = 0;
saio.sa_restorer = NULL;
sigaction(SIGIO,&saio,NULL);
// allow the process to receive SIGIO
fcntl(fd, F_SETOWN, getpid());
// Make the file descriptor asynchronous (the manual page says only
// O_APPEND and O_NONBLOCK, will work with F_SETFL...)
fcntl(fd, F_SETFL, O_ASYNC);//FASYNC);
tcgetattr(fd,&oldtio); // save current port settings
// set new port settings for canonical input processing
newtio.c_cflag = BAUD | CRTSCTS | DATABITS | STOPBITS | PARITYON | PARITY | CLOCAL | CREAD;
newtio.c_iflag = IGNPAR;
newtio.c_oflag = 0;
newtio.c_lflag = 0; //ICANON;
newtio.c_cc[VMIN]=1;
newtio.c_cc[VTIME]=0;
tcflush(fd, TCIFLUSH);
tcsetattr(fd,TCSANOW,&newtio);
return 1; // OK
}
/*----------------------------------------------------------------------------*
* Serial port: terminate io_port, sets DTR and RTS to low */
void rs_terminate(const int io_port)
{
// restore old port settings
tcsetattr(fd,TCSANOW,&oldtio);
tcsetattr(tty,TCSANOW,&oldkey);
close(fd); //close the com port
}
/*----------------------------------------------------------------------------*
* Serial port: read character from io_port (ignored in this version) */
char rs_getch(const int io_port)
{
static char buf[255]; // buffer for where data is put
static int index = 0, count = 0;
// check if data already in input buffer - if so return a character
if(count>0) { count--; return buf[index++];}
// otherwise check if any characters receivedfrom serial line
if (wait_flag==FALSE) //if input is available
{
count = read(fd,buf,255);
wait_flag = TRUE; /* wait for new input */
index=0;
count--;
//count++;
return buf[index++]; // return first character
}
return 0; // return 0 if no character read
}
/************************************************** *************************
* signal handler. sets wait_flag to FALSE, to indicate above loop that *
* characters have been received. *
************************************************** *************************/
static void signal_handler_IO (int status)
{
// printf("\n received SIGIO signal.\n");
wait_flag = FALSE;
}
};
int DeviceInterface::wait_flag;//this is a static variable, thats y
// main terminal program
int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
DeviceInterface obj;
Gtk::Label label1("SWIPE THE CARD TO LOG IN");//for first window
obj.wind.maximize();//for first window
obj.wind.add(label1);//for first window
obj.wind.show_all_children();//for first window
int temp = 0;
char buffer[600];
int i = 0;
int port = 1;
error=0;
// open the RS232 serial line
if(!obj.rs_initialise(port)) { exit(1); }//initializing the serial port
Gtk::Main::run(obj.wind);// displaying the first window
char letter;
while(!STOP)
{
if((letter=obj.rs_getch(port))>0) // getting the data from the serial port charecter by charecter and storing those values in a charecter array.
{
buffer[i] = letter;
i++;
}
if(strlen(buffer) >= 119)
{
temp = 1;
break;
}
}
if(temp == 1)
{
obj.wind.hide();//here i want to close the first window, but it is not working.
}
MYSQL *conn1;
MYSQL_RES *res_set1;
MYSQL_ROW row;
conn1 = mysql_init(NULL);// initializing the connection
mysql_real_connect(conn1,host,username,password,db,0,NULL,0);
mysql_query(conn1, ("select * from tblLogin"));
res_set1 = mysql_store_result(conn1);
if((row = mysql_fetch_row(res_set1)) != NULL)
{
if(strcmp(row[0], buffer) == 0)
{
obj.entry.set_text("You are a valid user");//this message will be displayed in the entry of the second window,in the case of valid user
}
else
{
obj.entry.set_text("You are not a valid user");//this message will be displayed in the entry of the second window,in the case of invalid user
}
}
Gtk::Main::run(obj);//this displays the second window, which contains an Gtk::entry on it,in that entry "you are a valid user" or "you are not a valid user" message will be displayed.
obj.rs_terminate(port);//closing the serial port
return 0;
}
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