Operate QL 500 P-Touch label Printer in C# Application

Question

I am making a POS system in windows forms using C#. Project is complete except one thing. I have to print the each sale on a QL 500 P-Touch label Printer. But I don't really know how to operate it from a application. I am new to such a label printing. I have googled but didn't find the satisfactory tutorial or documentation.

Answer 1

Download the b-PAC SDK .

Example C# projects are included; it's actually quite easy.

bpac.DocumentClass doc = new DocumentClass();
if (doc.Open("templateFile.lbx"))
{
    doc.GetObject("field1").Text = "...";
    doc.GetObject("field2").Text = "...";

    doc.StartPrint("", PrintOptionConstants.bpoDefault);
    doc.PrintOut(1, PrintOptionConstants.bpoDefault);
    doc.EndPrint();
    doc.Close();
}

Answer 2

I had to manually edit the project.csproj file to make the proper reference.

<ItemGroup>
    <COMReference Include="bpac">
      <Guid>{90359D74-B7D9-467F-B938-3883F4CAB582}</Guid>
      <VersionMajor>1</VersionMajor>
      <VersionMinor>0</VersionMinor>
      <Lcid>0</Lcid>
      <WrapperTool>tlbimp</WrapperTool>
      <Isolated>False</Isolated>
    </COMReference>
  </ItemGroup>