Print two images on a single print process

Question

Hello ,
I have two image files and I want to print them on same page.

so far I had only one image so this code works for me

        Process p = new Process();  
        p.StartInfo.FileName = pictureBox1.ImageLocation;  
        p.StartInfo.Verb = "Print";  
        p.Start();    

On trying the same for two image files it shows me two separate print windows.
but I need images in one print window.
like this
using this code for two images

            FileInfo f1 = new FileInfo(textBox_ImgPath_1.Text);  
            FileInfo f2 = new FileInfo(textBox_ImgPath_2.Text);  
            FileInfo[] Files_2 = new FileInfo[] { f1, f2 };          
             foreach (FileInfo file in Files_2)  
             {  
                 var p = new Process();  
                 p.StartInfo.FileName = file.FullName;  
                 p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;  
                 p.StartInfo.CreateNoWindow = true;  
                 p.StartInfo.Verb = "Print";  
                 p.Start();  
             }   

Answer 1

If there are no other solutions, you can combine the images, making one. Then print the made image; something like this:

const int Space = 30;

string path = Path.Combine( Path.GetTempPath( ), "MyImage.png" );

using( Image img1 = Image.FromFile( f1.FullName ), img2 = Image.FromFile( f2.FullName ) )
{
    using( Bitmap b = new Bitmap( Math.Max( img1.Width, img2.Width ), img1.Height + Space + img2.Height, PixelFormat.Format32bppArgb ) )
    {
        using( Graphics g = Graphics.FromImage( b ) )
        {
            g.Clear( Color.Transparent );

            g.DrawImage( img1, new Rectangle( new Point( 0, 0 ), img1.Size ) );
            g.DrawImage( img2, new Rectangle( new Point( 0, img1.Height + Space ), img2.Size ) );
        }

        b.Save( path, ImageFormat.Png );
    }
}

var p = new Process( );
p.StartInfo.FileName = path;
. . .

Answer 2

Hi HARISHJHAMNANI-4000,
You can draw two images in one call to PrintPageEventArgs event.
Please refer to the following code.

List<Image> imageList = new List<Image>();  
private void Form1_Load(object sender, EventArgs e)  
{  
    var imageOne = Image.FromFile(@"C:\Users\Pictures\Saved Pictures\football.jpg");  
    var imagetwo = Image.FromFile(@"C:\Users\Pictures\Saved Pictures\motorcycle.jpg");  
    imageList.Add(imageOne);  
    imageList.Add(imagetwo);  
}  
int currentPage;  
public void PrintGraph()  
{  
    PrintDocument pd = new PrintDocument();  
  
    pd.PrintPage += new PrintPageEventHandler(this.PrintImageHandler);  
  
    PrintDialog MyPrintDialog = new PrintDialog();  
  
    if (MyPrintDialog.ShowDialog() == DialogResult.OK)  
    {  
        currentPage = 0;  
        pd.Print();  
    }  
    pd.Dispose();  
}  
private void PrintImageHandler(object sender, PrintPageEventArgs ppeArgs)  
{  
    Graphics g = ppeArgs.Graphics;  
    Image objimage = imageList[currentPage];  
    g.DrawImage(objimage, 0, 0, objimage.Width, objimage.Height);  
    currentPage++;  
    if (currentPage < imageList.Count)  
    {  
        objimage = imageList[currentPage];  
        g.DrawImage(objimage, 0, 600, objimage.Width, objimage.Height);  
        currentPage++;  
    }  
    ppeArgs.HasMorePages = currentPage < imageList.Count;  
}  
         
private void button1_Click(object sender, EventArgs e)  
{  
  
    PrintGraph();  
}  

Best Regards,
Daniel Zhang

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Answer 3

In UWP, you can get that option in the print preview window with StandardPrintTaskOptions.NUp Property, however it will only be shown if the printer selected supports it.

Also took some time to look how to print NUp with SerPrinter() API. It seems even if the printer supports it, you'll have to convert the pages to be printed as EMF and submit to the printer. It'll be easier to use the above approaches to merge the images yourself and directly print it.