Hi.

This is a sample of a wrapper for methods of PrintFunctions.

using System;
using GMaPSCommon;

namespace gmapscommonw
{
    public class gmapsSample
    {
        public void PrintRawText(string sText, string sPrinterName)
        {
            GMaPSCommon.PrintFunctions.PrintRawText(sText, sPrinterName);
        }
        public void PrintRawText(string sText, string sPrinterName, bool bDisplayDialog)
        {
            GMaPSCommon.PrintFunctions.PrintRawText(sText, sPrinterName, bDisplayDialog);
        }

    }
}

This is the easy part. The others have intPtr datatype, which is used to represent a pointer or a handle. I'm not sure how it should be wrapped as I don't really know how they should be called (we don't have any documentation). But I guess most of them should be used before calling PrintRawText. Anyway, it's harder to help you at this point, as I'm really not familiar with this class.

What you can do is to write a class with a method that will implement the whole logic in c# (I guess you want to somehow print something). You will test that your method works fine in c#. Your method should not be static, and should be public. Also it can should get as params only datatypes supported from powerbuilder. Following table can be found in the link John provided:

At the end you will have to use your class in PB, but you will have to deploy it with GMaPSCommon.dll.

Andreas.

Hi, Malek - 

I found this in the PB documentation:

https://docs.appeon.com/pb2019r3/application_techniques/ch05s01.html

In particular, look on this web page for the heading "Adding an adapter for unsupported features".

HTH, John

A wrapper is just an assembly that you write in C# that has simple argument/return data types so that PowerBuilder can understand it. Then in your C# code you call functions in the assembly you need to work with.

Thanks Andreas

      Your response was very helpful. I was more concerned with the class using the pointer.

Yes i am trying to print a UPS label they send us via xml. The string is in the attached.

If i could just send that to a Zebra printer from powerbuilder would be great. if not a sample .net would be helpful.

I am totally not familiar with sending raw text and commands to a printer.

Please advise

Thanks again for the helpful response with the Wrapper

Thanks

Malek

Hi Andreas

   Thanks again for helping me with this.

attached are two files one is the function call from Powerbuilder written in PB.net that we are trying to upgrade to 2019 R3.

The other is the visual studio solution of gmapscommon,

In answer to your questions : 

information in label txt is encoded? No It is expected to be sent to the printer after some transformation or it should be sent as it is? As is

Gmapscommon.dll is part of some SDK? Is there any documentation? I do see available functions but some params aren't clear to me. solution attached

Based on printraw.txt you call:

GMaPSCommon.PrintFunctions.PrintRawText( asDoc, asPrinter)

PrintRawText with two string arguments expects a base64 string:

sLabel = System.Text.Encoding.Default.GetString(Convert.FromBase64String(sText));

But contents of label.txt isn't base64: 0x53546773515377774D44454B5430514B635467784D6770524D5459774D4377794E41...

If you have a valid label (which is base64) then you can use the first method from following class:

using System;
/*using GMaPSCommon;*/

namespace gmapscommonw
{
    public class gmapsSample
    {
        public void PrintRawText(string sText, string sPrinterName)
        {
            GMaPSCommon.PrintFunctions.PrintRawText(sText, sPrinterName);
        }
        public void PrintRawText(string sText, string sPrinterName, bool bDisplayDialog)
        {
            GMaPSCommon.PrintFunctions.PrintRawText(sText, sPrinterName, bDisplayDialog);
        }

    }
}

This class can be compiled using c# to the framework you want to use (you have to choose one of those supported in powerbuilder).

You can add gmapscommon.cs to the new project. Otherwise you can add a reference to the appropriate dll and uncomment "using GMaPSCommon;" in the code above.

Andreas.