C# Definition:

using System.Runtime.InteropServices; // for CharSet

// For Unicode
[DllImport("winspool.drv", EntryPoint="StartDocPrinterW", SetLastError=true,
  CharSet=CharSet.Unicode,
  ExactSpelling=true,
  CallingConvention=CallingConvention.StdCall)]
private static extern uint StartDocPrinter(
  IntPtr hPrinter,
  Int32 level,  
  [In] ref DOC_INFO_1W di);

// For ANSI
[DllImport("winspool.drv", EntryPoint="StartDocPrinterA", SetLastError=true,
  CharSet=CharSet.Ansi,
  ExactSpelling=true,
  CallingConvention=CallingConvention.StdCall)]
private static extern uint StartDocPrinter(
  IntPtr hPrinter,
  Int32 level,  
  [In] ref DOC_INFO_1A di);

  [In, MarshalAs(UnmanagedType.LPStruct)] DOC_INFO_1 di);

VB Definition:

Structure StartDocPrinter
   Public TODO
End Structure

VB.NET Declaration:

'For Unicode

'For UniCode

  <DllImport("winspool.drv", CharSet:=CharSet.Unicode, ExactSpelling:=False, CallingConvention:=CallingConvention.StdCall)> _
  Public Function StartDocPrinter(hPrinter As IntPtr, Level As Integer, ByRef pDocInfo As DOC_INFO_1W) As Long
  End Function

'For ANSI

  <DllImport("winspool.drv", CharSet:=CharSet.Ansi, ExactSpelling:=False, CallingConvention:=CallingConvention.StdCall)> _
  Public Function StartDocPrinter(hPrinter As IntPtr, Level As Integer, ByRef pDocInfo As DOC_INFO_1A) As Long
  End Function

User-Defined Field Types:

None.

Notes:

See DOC_INFO_1 .

See DOC_INFO_1A Ansi or DOC_INFO_1W Unicode .

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