88 lines
3.6 KiB
C++
88 lines
3.6 KiB
C++
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#ifndef DOWNLOAD_H
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#define DOWNLOAD_H
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#include <iuprogress.h>
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#define DOWNLOAD_STATUS_OK 0
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#define DOWNLOAD_STATUS_ITEMCOMPLETE 1
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#define DOWNLOAD_STATUS_ERROR 2
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#define DOWNLOAD_STATUS_ABORTED 3
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#define DOWNLOAD_STATUS_OPERATIONCOMPLETE 4
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#define DOWNLOAD_STATUS_ITEMSTART 5
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//---------------------------------------------------------------------------
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//
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// type definition for the parameters needed by callback function
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//
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class COperationMgr;
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typedef struct _DOWNLOAD_CALLBACK_DATA
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{
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BSTR bstrOperationUuid;
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HWND hEventFiringWnd;
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IProgressListener* pProgressListener;
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float flProgressPercentage; // Minimum Percentage Increment for Progress 0 == all progress
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float flLastPercentage; // percentage value of the last progress callback
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LONG lTotalDownloadSize; // estimated total download size
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LONG lCurrentItemSize; // estimated current item size
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LONG lTotalDownloaded; // total bytes downloaded so far
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COperationMgr* pOperationMgr;
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} DCB_DATA, *P_DCB_DATA;
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//---------------------------------------------------------------------------
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//
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// type definition for the callback function
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//
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typedef BOOL (WINAPI * PFNDownloadCallback)(
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VOID* pCallbackData,
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DWORD dwStatus,
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DWORD dwBytesTotal,
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DWORD dwBlockSizeDownloaded, // Bytes Downloaded Since Last Callback.
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BSTR bstrXmlData, // XML in bstr, used by itemstart/complete, otherwise NULL
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LONG *lCommandRequest // return what callback function want to do:
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// PAUSE (1) or CANCEL (3)
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);
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//---------------------------------------------------------------------------
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//
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// DownloadFile
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// Implements the core downloader for IU. This is a single purpose downloader that is very generic,
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// It does not attempt to decompress or checktrust anything it downloads.
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//
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// Progress Information is given for each block downloaded through the supplied callback function.
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// Specifying a callback is optional. All callbacks are 'synchronous' and if not immediately
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// returned will block all downloads in this object.
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#define WUDF_DONTALLOWPROXY 0x00000001
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#define WUDF_CHECKREQSTATUSONLY 0x00000002
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#define WUDF_APPENDCACHEBREAKER 0x00000004
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#define WUDF_DODOWNLOADRETRY 0x00000008
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#define WUDF_SKIPCABVALIDATION 0x00000010
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#define WUDF_SKIPAUTOPROXYCACHE 0x00000020
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#define WUDF_PERSISTTRANSPORTDLL 0x00000040
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#define WUDF_ALLOWWININETONLY 0x40000000
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#define WUDF_ALLOWWINHTTPONLY 0x80000000
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#define WUDF_TRANSPORTMASK (WUDF_ALLOWWINHTTPONLY | WUDF_ALLOWWININETONLY)
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HRESULT DownloadFile(
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LPCTSTR pszServerUrl, // full http url
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LPCTSTR pszLocalPath, // local directory to download file to
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LPCTSTR pszLocalFileName, // optional local file name to rename the downloaded file to
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PDWORD pdwDownloadedBytes, // bytes downloaded for this file
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HANDLE *hQuitEvents, // optional events causing this function to abort
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UINT nQuitEventCount, // number of quit events, must be 0 if array is NULL
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PFNDownloadCallback fpnCallback, // optional call back function
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VOID* pCallbackData, // parameter for call back function to use
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DWORD dwFlags = 0
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);
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#include "dllite.h"
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#endif
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