26.8 Implementation the Project
The implementation is fairly straightforward. The first thing to do is to read the argument, which determines which batch file is to be used. This argument can be 1, 2, 3, 4, or 5. Then it will call the run function in the Dos object.
The algorithm is:
Step 1. Object d70
The project first creates an object, d70. If this object cannot be created, the program terminates.
Step 2. Argument
The project will then find the argument, which determines the batch file to be used. If there is any error, it will use the default 1.
Step 3. Data Files.
If you use the command:
C:\>…\chap26 1
You will need the following files:
Abm70.txt
Bf70.txt
Bf270.txt
Nf70.txt
Nf270.txt
Tp70.txt
These text files are used by the ImageFinder for Dos and are stored in the “.\data\” folder. If you did not change the installation folder, it is:
“c:\transapplet70\ transapplet70.chap26\bin\Debug\data”.
Before you can run the Dos version, you must prepare these files using the Windows version for your application.
Step 4. Code
class Class1
{
static string sCode = "0";
static void Main(string[] args)
{
Attrasoft.TransApplet70.Dos70.Dos70 d70;
try
{
d70 = new Attrasoft.TransApplet70.Dos70.Dos70 ();
}
catch (Exception ee)
{
Console.Write (ee.ToString () );
return;
}
int theCode = 0;
if (args.Length == 0 )
theCode = 0;
else
{
sCode = args[0];
theCode = getCode ();
}
Console.WriteLine ("Batch Option " + theCode );
try
{
bool b = d70.ImageFinderForDos (theCode ) ;
Console.Write ( d70.toString () );
if ( !b )
Console.Write ( "ImageFinder for Dos fails!" );
}
catch (Exception ee)
{
Console.Write (ee.ToString () );
}
}
static int getCode ( )
{
int i = 0;
try
{
i = int.Parse (sCode);
}
catch
{
Console.WriteLine ("Invalid args!");
return 0;
}
if ( (i>=0 ) && (i <= 5 ) )
return i;
return 0;
}
}
The first section,
d70 = new Attrasoft.TransApplet70.Dos70.Dos70 ();
creates a Dos object.
The second section,
sCode = args[0];
theCode = getCode (); (which calls int.Parse (sCode) )
gets the “Command Line Arguments”.
The last section,
bool b = d70.ImageFinderForDos (theCode ) ;
calls the dos command.
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