Hi!

a question.. i´m trying to read memory from outside jvm
and ive found this

import com.sun.jna.Memory;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.win32.StdCallLibrary;

public class ReadProcessMemoryDemo {

   public static final int PROCESS_QUERY_INFORMATION = 0x0400;
   public static final int PROCESS_VM_READ = 0x0010;

   public interface Kernel32 extends StdCallLibrary {
       Kernel32 INSTANCE = (Kernel32) Native.loadLibrary("kernel32", Kernel32.class);

       public Pointer OpenProcess(int dwDesiredAccess, boolean bInheritHandle, int dwProcessId);

       boolean ReadProcessMemory(Pointer hProcess, int inBaseAddress, Pointer outputBuffer, int nSize,
               IntByReference outNumberOfBytesRead);
   }

   public static void main(String[] args) {

       Kernel32 lib = Kernel32.INSTANCE;

       int pid = 1276;
       int bufferSize = 128;
       int offset = 65536;
       Pointer process = lib.OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, false, pid);

       if (process == null) {
           throw new RuntimeException("no such pid");
       }

       IntByReference baseAddress = new IntByReference();
       baseAddress.setValue(offset);
       Memory outputBuffer = new Memory(bufferSize);
       boolean success = lib.ReadProcessMemory(process, offset,  outputBuffer, bufferSize, null);
       System.out.println("success = " + success);

       byte[] bufferBytes = outputBuffer.getByteArray(0, bufferSize);
       System.out.println(new String(bufferBytes));
   }
}


by martin_c

but i cant get it to work in processing..why?