Using System;
Using System. Collections. Generic;
Using System. componentmodel;
Using System. Data;
Using System. drawing;
Using System. LINQ;
Using System. text;
Using System. Windows. forms;
Using System. IO;
namespace windowsformsapplication1
{< br> Public partial class pscheck: form
{< br> Public pscheck ()
{< br> initializecomponent ();
}
private void button#click ( Object sender, eventargs E)
{< br> byte [] buffer = New byte [ 5120 ];
Using (Filestream FS = New Filestream ( " E: \ photo.jpg " , Filemode. Open ))
{
FS. Read (buffer, 0 , Buffer. Length );
}
String Str = Buffer [ 4869 ]. Tostring (); // A 65
Str + = Buffer [ 4870 ]. Tostring (); // D 100
Str + = Buffer [ 4871 ]. Tostring (); // O 111
Str + = Buffer [ 4872 ]. Tostring (); // B 98
Str + = Buffer [ 4873 ]. Tostring (); // E 101
Str + = Buffer [ 4874 ]. Tostring (); // 32
Str + = Buffer [ 4875 ]. Tostring (); // P 80
Str + = Buffer [ 4876 ]. Tostring (); // H 104
Str + = Buffer [ 4877 ]. Tostring (); // O 111
Str + = Buffer [ 4878 ]. Tostring (); // T 116
Str + = Buffer [ 4879 ]. Tostring (); // O 111
Str + = Buffer [ 4880 ]. Tostring (); // S 115
Str + = Buffer [ 4881 ]. Tostring (); // H 104
Str + = Buffer [ 4882 ]. Tostring (); // O 111
Str + = Buffer [ 4883 ]. Tostring (); // P 112
If (Str = " 65100111981013280104111116111115104111112 " )
{
MessageBox. Show ( "Image modified by PS " ); // Psprocessed
}
Else
{
MessageBox. Show ( "Not modified by PS " );
}
}
}
}