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//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
//  ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
//  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//  PARTICULAR PURPOSE.
//
//  Copyright  1997 - 2003  Microsoft Corporation.  All Rights Reserved.
//
//  FILE:   Intrface.H
//
//
//  PURPOSE:    Define COM interface for User Mode Printer Customization DLL.
//
#pragma once

////////////////////////////////////////////////////////////////////////////////
//
//  IOemPS
//
//  Interface for PostScript OEM sample rendering module
//
class IOemPS : public IPrintOemPS
{
public:
    // *** IUnknown methods ***

    STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID FAR* ppvObj);

    STDMETHOD_(ULONG,AddRef)  (THIS);

    // the _At_ tag here tells prefast that once release 
    // is called, the memory should not be considered leaked
    _At_(this, __drv_freesMem(object)) 
    STDMETHOD_(ULONG,Release) (THIS);

    // *** IPrintOemPS methods ***

    //
    // Method for publishing Driver interface.
    //
    STDMETHOD(PublishDriverInterface)(THIS_ IUnknown *pIUnknown);

    //
    // Method for OEM to specify DDI hook out
    //

    STDMETHOD(EnableDriver)  (THIS_ DWORD           DriverVersion,
                                    DWORD           cbSize,
                                    PDRVENABLEDATA  pded);

    //
    // Method to notify OEM plugin that it is no longer required
    //

    STDMETHOD(DisableDriver) (THIS);

    //
    // Method for OEM to contruct its own PDEV
    //

    STDMETHOD(EnablePDEV)    (THIS_ PDEVOBJ         pdevobj,
                                    _In_ PWSTR      pPrinterName,
                                    ULONG           cPatterns,
                                    HSURF          *phsurfPatterns,
                                    ULONG           cjGdiInfo,
                                    GDIINFO        *pGdiInfo,
                                    ULONG           cjDevInfo,
                                    DEVINFO        *pDevInfo,
                                    DRVENABLEDATA  *pded,
                                    OUT PDEVOEM    *pDevOem);

    //
    // Method for OEM to free any resource associated with its PDEV
    //

    STDMETHOD(DisablePDEV)   (THIS_ PDEVOBJ         pdevobj);

    //
    // Method for OEM to transfer from old PDEV to new PDEV
    //

    STDMETHOD(ResetPDEV)     (THIS_ PDEVOBJ         pdevobjOld,
                                    PDEVOBJ        pdevobjNew);


    //
    // Get OEM dll related information
    //

    STDMETHOD(GetInfo) (THIS_ DWORD   dwMode,
                              PVOID   pBuffer,
                              DWORD   cbSize,
                              PDWORD  pcbNeeded);
    //
    // OEMDevMode
    //

    STDMETHOD(DevMode) (THIS_ DWORD       dwMode,
                              POEMDMPARAM pOemDMParam);

    //
    // OEMCommand - PSCRIPT only, return E_NOTIMPL on Unidrv
    //

    STDMETHOD(Command) (THIS_ PDEVOBJ     pdevobj,
                              DWORD       dwIndex,
                              PVOID       pData,
                              DWORD       cbSize,
                              OUT DWORD   *pdwResult);

    IOemPS();
    ~IOemPS();

protected:

    long                m_cRef;

    IPrintOemDriverPS*  m_pOEMHelp;
};