C # operation of the small ticket machine printing using the/C mode

This method is suitable for most small ticket machines in the market, such as good bo, POS58, etc., not suitable for some label printers such as zebra printers, etc.

Direct Sticker Code:

 PrivateFileStream fs =NULL; [DllImport ("Kernel32.dll", CharSet = CharSet.Auto)]//Call System API Print function         Public Static externIntPtr CreateFile (stringFileName,//file name            UINTDesiredaccess,//access Mode            UINTShareMode,//Share mode            UINTSecurityattributes,//Security Attributes            UINTCreationdisposition,//How to Create            UINTFlagsandattributes,//file Attributes            stringhTemplateFile//handle to template file        ); /// <summary>        ///Print a small ticket/// </summary>        /// <param name= "msg" ></param>        /// <returns></returns>         Public stringPrintmsg (stringPosport,stringMsgBOOLIsopenmoneybox) {            Try{IntPtr Ihandle= CreateFile (Posport,0x40000000,0,0,3,0,NULL); if(Ihandle.toint32 () = =-1)                {                    return "Ticket Machine Connection failed. Or the port number is wrong. Please test the printer is OK!"; }                Else                {                    Try{FS=NewFileStream (Ihandle, FileAccess.ReadWrite); StreamWriter SW=NewStreamWriter (FS, System.Text.Encoding.Default);//Write DataSW.                        WriteLine (msg); //Open the cash drawer                        if(isopenmoneybox) {sw. Write ( (Char) -). ToString () +"P"+ ((Char)0). ToString () + ((Char) -). ToString () + ((Char)255).                        ToString ()); } SW.                        Flush (); Sw.                        Close (); Fs.                        Close (); return ""; }                    Catch(Exception ex) {returnEx. InnerException = =NULL?Ex. Message:ex.                    Innerexception.message; }                }            }            Catch(Exception exp) {return "TPL or COM port connection failed! "; }        }

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C # operation of the small ticket machine printing using the/C mode