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57 lines
2.3 KiB
57 lines
2.3 KiB
//
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// Microsoft Windows Media Technologies
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// Copyright (C) Microsoft Corporation, 1999 - 2001. All rights reserved.
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//
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// MSHDSP.DLL is a sample WMDM Service Provider(SP) that enumerates fixed drives.
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// This sample shows you how to implement an SP according to the WMDM documentation.
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// This sample uses fixed drives on your PC to emulate portable media, and
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// shows the relationship between different interfaces and objects. Each hard disk
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// volume is enumerated as a device and directories and files are enumerated as
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// Storage objects under respective devices. You can copy non-SDMI compliant content
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// to any device that this SP enumerates. To copy an SDMI compliant content to a
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// device, the device must be able to report a hardware embedded serial number.
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// Hard disks do not have such serial numbers.
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//
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// To build this SP, you are recommended to use the MSHDSP.DSP file under Microsoft
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// Visual C++ 6.0 and run REGSVR32.EXE to register the resulting MSHDSP.DLL. You can
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// then build the sample application from the WMDMAPP directory to see how it gets
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// loaded by the application. However, you need to obtain a certificate from
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// Microsoft to actually run this SP. This certificate would be in the KEY.C file
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// under the INCLUDE directory for one level up.
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// MDSPEnumDevice.h : Declaration of the CMDSPEnumDevice
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#ifndef __MDSPENUMDEVICE_H_
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#define __MDSPENUMDEVICE_H_
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/////////////////////////////////////////////////////////////////////////////
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// CMDSPEnumDevice
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class ATL_NO_VTABLE CMDSPEnumDevice :
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public CComObjectRootEx<CComSingleThreadModel>,
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public CComCoClass<CMDSPEnumDevice, &CLSID_MDSPEnumDevice>,
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public IMDSPEnumDevice
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{
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public:
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CMDSPEnumDevice();
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DECLARE_REGISTRY_RESOURCEID(IDR_MDSPENUMDEVICE)
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BEGIN_COM_MAP(CMDSPEnumDevice)
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COM_INTERFACE_ENTRY(IMDSPEnumDevice)
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END_COM_MAP()
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// IMDSPEnumDevice
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public:
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ULONG m_nCurOffset;
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ULONG m_nMaxDeviceCount;
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WCHAR m_cEnumDriveLetter[MDSP_MAX_DRIVE_COUNT];
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STDMETHOD(Clone)(/*[out]*/ IMDSPEnumDevice **ppEnumDevice);
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STDMETHOD(Reset)();
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STDMETHOD(Skip)(/*[in]*/ ULONG celt, /*[out]*/ ULONG *pceltFetched);
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STDMETHOD(Next)(/*[in]*/ ULONG celt, /*[out]*/ IMDSPDevice **ppDevice, /*[out]*/ ULONG *pceltFetched);
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};
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#endif //__MDSPENUMDEVICE_H_
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