Styjun

I'm currently using Custom thermal printer to print order receipt. Giving example my output receipt currently look like below which I grab from here:-

I'm currently want to utilize the whole printing width area. So it will be as below:-

I've seen one of our customer using same printer but the print result is having full print as second image.

What can be done to have the printing to have full paper width?

Below are how I'm get to print but having straight line to have gap as first image:-

struct PrintProperty

 public RectangleF pageBounds get; set; 
 public RectangleF marginBounds get; set; 
 public RectangleF printableArea get; set; 
 public float availableWidth get; set; 

static PrintProperty PrtProp get; set; 
private static void DefinePageSettings(PrintPageEventArgs e)

 try
 
 PrinterSettings settings;
 foreach (var printer in PrinterSettings.InstalledPrinters)
 
 settings = new PrinterSettings();
 settings.PrinterName = printer.ToString();
 if (settings.PrinterName.Contains("CUSTOM TG2480-H"))
 
 if (!settings.IsDefaultPrinter)
 
 var printerQuery = new ManagementObjectSearcher("SELECT * from Win32_Printer");
 foreach (var printers in printerQuery.Get())
 
 var name = printers.GetPropertyValue("Name");
 var status = printers.GetPropertyValue("Status");
 var isDefault = printers.GetPropertyValue("Default");
 var isNetworkPrinter = printers.GetPropertyValue("Network");
 if (name.ToString().Contains("CUSTOM TG2480-H"))
 
 SetPrinterAsDefault.SetDefaultPrinter(name.ToString());
 LogEvents($"Change default printer to: "CUSTOM TG2480-H" ", System.Diagnostics.EventLogEntryType.Information);
 
 
 
 else
 
 LogEvents($"PageTitle Default printer: SelectedPrinter ", System.Diagnostics.EventLogEntryType.Information);
 
 
 

 PageSettings page = PrinterUtils.GetPrinterPageInfo();
 PrintProperty prop = new PrintProperty();
 prop.marginBounds = e.MarginBounds;
 prop.pageBounds = e.PageBounds;
 prop.printableArea = e.PageSettings.PrintableArea;
 prop.availableWidth = e.PageSettings.PrintableArea.Width;
 PrtProp = prop;

 
 catch (Exception ex)
 
 string error = $"Exception on define page settings. Message: ex.Message. StackTrace: ex.StackTrace";
 LogEvents(error, System.Diagnostics.EventLogEntryType.Error);
 


private void StartPrint(PrintPageEventArgs e)

 try
 
 DefinePageSettings(e);
 PrinterConfig.ReceiptFontProperties PrintFont = default(PrinterConfig.ReceiptFontProperties);
 PrintFont.FontFamily = "Font family from settings file";
 PrintFont.FontSize = "Font size from settings file";
 PrintFont.FontBold = "Is Font bold from settings file";
 PrintFont.FontItalic = "Is Font italic from settings file";
 PrintFont.FontUnderline = "Is Font underline from settings file";
 PrintFont.FontStrikeout = "Is Font strikeout from settings file";
 PrintFont.FontAlignment = "Font alignment from settings file";
 PrintStraightLine(e.Graphics, PrintFont, "=");
 
 catch (Exception ex)
 
 string error = $"Exception on start print receipt. Message: ex.Message. StackTrace: ex.StackTrace";
 LogEvents(error, System.Diagnostics.EventLogEntryType.Error);
 

protected static void PrintStraightLine(Graphics MyGraphic, PrinterConfig.ReceiptFontProperties FontInfo, string strText)

 Font PrintedFontProp = new Font(FontInfo.FontFamily, FontInfo.FontSize);
 Brush MyBrush = new SolidBrush(Color.Black);
 StringFormat MyStringFormat = new StringFormat();
 if (FontInfo.FontBold)
 
 PrintedFontProp = new Font(PrintedFontProp, FontStyle.Bold);
 
 if (FontInfo.FontItalic)
 
 PrintedFontProp = new Font(PrintedFontProp, FontStyle.Italic);
 
 if (FontInfo.FontUnderline)
 
 PrintedFontProp = new Font(PrintedFontProp, FontStyle.Underline);
 
 if (FontInfo.FontStrikeout)
 
 PrintedFontProp = new Font(PrintedFontProp, FontStyle.Strikeout);
 

 if (FontInfo.FontAlignment == StringAlignment.Center) //center
 
 MyStringFormat.Alignment = StringAlignment.Center;
 
 else if (FontInfo.FontAlignment == StringAlignment.Near) //left
 
 MyStringFormat.Alignment = StringAlignment.Near;
 
 else if (FontInfo.FontAlignment == StringAlignment.Far) //right
 
 MyStringFormat.Alignment = StringAlignment.Far;
 

 SizeF MeasureString = new SizeF();
 Size MeasureText = new Size();
 MeasureString = MyGraphic.MeasureString(strText, PrintedFontProp);
 MeasureText = TextRenderer.MeasureText(strText, PrintedFontProp, new Size((int)MeasureString.Width, (int)MeasureString.Height), System.Windows.Forms.TextFormatFlags.Default);
 Rectangle MyRect = new Rectangle(0, coordinateY, (int)PrtProp.availableWidth, MeasureText.Height);
 MyGraphic.DrawString(strText, PrintedFontProp, MyBrush, MyRect, MyStringFormat);

 SetCurrentY(PrintedFontProp.Height);

I'm set it dynamic because user want to change font and I have to specified the column to be precise[Quantity, Name, Price] for details and truncate long text or print it multiline as per set in the settings file.

The MeasureText and MeasureStirng are using to control each character size to be printed so it will not overlapped on printing details part.