C# Signature:

[DllImport("winspool.drv", EntryPoint="SetJobA")]
[DllImport("winspool.drv", EntryPoint="SetJob")]
static extern int SetJobA(IntPtr hPrinter, int JobId,
   int Level, ref byte pJob, int Command_Renamed);

VB Signature:

Declare Function SetJob Lib "winspool.drv" Alias "SetJobA" (hPrinter As IntPtr, JobId As Integer,
Declare Function SetJob Lib "winspool.drv" (hPrinter As IntPtr, JobId As Integer,
   Level As Integer, ByRef pJob As Byte, Command_Renamed As Integer)

User-Defined Types:

Used by sample code: PRINTER_DEFAULTS

    Public Const JOB_CONTROL_PAUSE = &H1
    Public Const JOB_CONTROL_RESUME = &H2
    Public Const JOB_CONTROL_RESTART = &H4
    Public Const JOB_CONTROL_CANCEL = &H3
    Public Const JOB_CONTROL_DELETE = &H5
    Public Const JOB_CONTROL_RETAIN = &H8
    Public Const JOB_CONTROL_RELEASE = &H9

Notes:

None.

Tips & Tricks:

How to cancel a print job:

C#

int pHandle = 0;

PRINTER_DEFAULTS defaults = new PRINTER_DEFAULTS();

byte b = 0;

OpenPrinterA(printerName, ref pHandle, ref defaults);

SetJobA(pHandle, (int)jobID, 0, ref b, JOB_CONTROL_CANCEL);
SetJobA(pHandle, (int)jobID, 0, ref b, (int)Job_Control.Cancel);

ClosePrinter(pHandle);

Sample Code:

Please add some!

vb.net

dim Result as long = SetJob(handle, jobid, 0, Nothing, JOB_CONTROL_RESUME)

Alternative Managed API:

The System.Management API allows for lots of printer stuff, but doesn't let you delete a print job in Win2K.

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