分析二进制属性来读取 TZREG 结构的流

本主题演示如何从存储在二进制属性 PidLidTimeZoneStruct 中的持久格式读取 TZREG 结构。

TZREG* BinToTZREG(ULONG cbReg, LPBYTE lpbReg)  
{ 
    if (!lpbReg) return NULL;  
 
    // Update this if parsing code is changed. 
    if (cbReg < 3*sizeof(long) + 2*sizeof(WORD) + 2*sizeof(SYSTEMTIME)) return NULL; 
 
    TZREG tzReg = {0}; 
    LPBYTE lpPtr = lpbReg; 
 
    tzReg.lBias = *((long*)lpPtr); 
    lpPtr += sizeof(long); 
    tzReg.lStandardBias = *((long*)lpPtr); 
    lpPtr += sizeof(long); 
    tzReg.lDaylightBias = *((long*)lpPtr); 
    lpPtr += sizeof(long); 
    lpPtr += sizeof(WORD);// reserved 
 
    tzReg.stStandardDate = *((SYSTEMTIME*)lpPtr); 
    lpPtr += sizeof(SYSTEMTIME); 
    lpPtr += sizeof(WORD);// reserved 
    tzReg.stDaylightDate = *((SYSTEMTIME*)lpPtr); 
    lpPtr += sizeof(SYSTEMTIME); 
 
    TZREG* ptzReg = NULL; 
    ptzReg = new TZREG; 
    if (ptzReg) 
    { 
        *ptzReg = tzReg; 
    } 
 
    return ptzReg; 
} 

另请参阅

• 从约会中读取时区属性