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134 lines
3.9 KiB
134 lines
3.9 KiB
/**********************************************************************/
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/** Microsoft Windows/NT **/
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/** Copyright(c) Microsoft Corporation, 1997 - 1998 **/
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/**********************************************************************/
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/*
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timeofday.cpp
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Implementation of convenient functions to start timeofday dialog
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FILE HISTORY:
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*/
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#include "stdafx.h"
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#include "timeofday.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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// hour map ( one bit for an hour of a week )
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static BYTE bitSetting[8] = { 0x80, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x1};
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//+---------------------------------------------------------------------------
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//
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// Function: ReverseHourMap
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//
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// Synopsis: reverse each byte in the hour map
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//
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// we have to do this because LogonUI changes the way HourMap is stored(they
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// reversed all the bit. We need to do this so our conversion code can leave
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// intact.
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//
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// Arguments: [in] BYTE* map - hour map
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// [in] INT nByte - how many bytes are in this hour map
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//
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// History: byao 4/10/98 10:33:57 PM
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//
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//+---------------------------------------------------------------------------
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void ReverseHourMap(BYTE *map, int nByte)
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{
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int i, j, temp;
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for (i=0; i<nByte; i++)
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{
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temp = 0;
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for (j=0;j<8;j++)
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{
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// set the value temp
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if ( map[i] & bitSetting[j] )
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{
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temp |= bitSetting[7-j];
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}
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}
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map[i] = (BYTE) temp;
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}
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}
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void ShiftHourMap(BYTE* map, int nByte, int nShiftByte)
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{
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ASSERT(nShiftByte);
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ASSERT(nByte > abs(nShiftByte));
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nShiftByte = (nByte + nShiftByte) % nByte;
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BYTE* pTemp = (BYTE*)_alloca(nShiftByte);
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// put the tail to the buffer
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memmove(pTemp, map + nByte - nShiftByte, nShiftByte);
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// shift the body to right
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memmove(map + nShiftByte, map, nByte - nShiftByte);
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// put the tail back to the head
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memcpy(map, pTemp, nShiftByte);
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}
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HRESULT OpenTimeOfDayDlgEx(
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HWND hwndParent, // parent window
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BYTE ** pprgbData, // pointer to pointer to array of 21 bytes
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LPCTSTR pszTitle, // dialog title
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DWORD dwFlags
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)
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{
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PFN_LOGONSCHEDULEDIALOGEX pfnLogonScheduleDialog = NULL;
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HMODULE hLogonScheduleDLL = NULL;
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HRESULT hr = S_OK;
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// ReverseHourMap() will reverse each byte of the hour map, basically
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// reverse every bit in the byte.
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// we have to do this because LogonUI changes the way HourMap is stored(they
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// reversed all the bit. We need to do this so our conversion code can leave
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// intact.
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//
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// We reverse it here so it can be understood by the LogonSchedule api
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//
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ReverseHourMap(*pprgbData,21);
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hLogonScheduleDLL = LoadLibrary(LOGHOURSDLL);
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if ( NULL == hLogonScheduleDLL )
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{
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hr = HRESULT_FROM_WIN32(GetLastError());
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AfxMessageBox(IDS_ERR_TOD_LOADLOGHOURDLL);
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goto L_ERR;
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}
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// load the API pointer
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pfnLogonScheduleDialog = (PFN_LOGONSCHEDULEDIALOGEX) GetProcAddress(hLogonScheduleDLL, DIALINHOURSEXAPI);
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if ( NULL == pfnLogonScheduleDialog )
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{
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hr = HRESULT_FROM_WIN32(GetLastError());
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AfxMessageBox(IDS_ERR_TOD_FINDLOGHOURSAPI);
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goto L_ERR;
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}
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//
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// now we do have this DLL, call the API
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//
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hr = pfnLogonScheduleDialog(hwndParent, pprgbData, pszTitle, dwFlags);
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if (FAILED(hr)) goto L_ERR;
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// We need to reverse it first so our conversion code can understand it.
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//
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ReverseHourMap(*pprgbData,21);
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L_ERR:
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if(hLogonScheduleDLL != NULL)
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FreeLibrary(hLogonScheduleDLL);
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return hr;
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}
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