Hi, I want to print bulk PDF files from C# or VB.Net code. I have written the below snippet to do the same.
DirectoryInfo dir =
new DirectoryInfo(folderPath);

//create an array of files using FileInfo object
FileInfo [] files;
//get all files for the current directory
files = dir.GetFiles("*.*");

//iterate through the directory and print the files
foreach (FileInfo file in files)
{


ShellExecute(0, "print", file.FullName, "", "", 1);




}

return true;
}


catch(Exception ex)
{

return bReturnLog;
}
Now my problem is I want to print on of the file in duplex mode (both sides). So how can I send the instructions to the printer to print this file in duplex mode and I want to change setting back to print other files in single side. Could you plz advice me or give me the code snippet to resolve this Issue. Thanks!