On 2019-08-26 15:13, Mgr. Janusz Chmiel wrote:
Please, does somebody of us know how to write file by using binary
mode and writing data from The variable which have JNByteBuffer
variable type?
Here is a Java example on how to do it. You need to use
java.io.FileOutputStream (JIFileOutputStream in FPC):
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
public class Main {
public static void main(String[] args) throws Exception {
String fromFileName = "from.txt";
String toFileName = "to.txt";
FileChannel in = new FileInputStream(fromFileName).getChannel();
FileChannel out = new FileOutputStream(toFileName).getChannel();
ByteBuffer buff = ByteBuffer.allocateDirect(32 * 1024);
while (in.read(buff) > 0) {
buff.flip();
out.write(buff);
buff.clear();
}
in.close();
out.close();
}
}
(reproduced from
http://www.java2s.com/Code/Java/File-Input-Output/WritewithByteBuffer.htm
)
Jonas
_______________________________________________
fpc-pascal maillist - fpc-pascal@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
