自学教程：C++ GetValue函数代码示例

LPCTSTR GetLyricSI(FILE_INFO* info) {	return GetValue(info, FIELD_LYRIC_SI);}

/* NumberTextCtrl::isDecrement * Returns true if the entered value is a decrement *******************************************************************/bool NumberTextCtrl::isDecrement(){	return GetValue().StartsWith("--");}

	wxRect DimRect::GetValue(const wxSize& referenceSize) const {		return GetValue(wxRect(0, 0, referenceSize.GetWidth(), referenceSize.GetHeight()));	}

void wxSlider::SetValue( int value ){    if (GetValue() != value)        GTKSetValue(value);}

string Message::GetMessageType(){    return GetValue(MessageTag::Type);}

// ------------------------------------------------------------------------double LABHistogram2D::GetValue(CvScalar bgr) {	double lab[3];	RGB2Lab(bgr.val[2], bgr.val[1], bgr.val[0], lab);	return GetValue(lab[1], lab[2]);}

LPCTSTR GetURLSI(FILE_INFO* info) {	return GetValue(info, FIELD_URL_SI);}

LPCTSTR GetEncodest(FILE_INFO* info) {	return GetValue(info, FIELD_ENCODEST);}

LPCTSTR GetAlbumArtistSI(FILE_INFO* info) {	return GetValue(info, FIELD_ALBM_ARTIST_SI);}

LPCTSTR GetOrigArtistSI(FILE_INFO* info) {	return GetValue(info, FIELD_ORIG_ARTIST_SI);}

LPCTSTR GetComposerSI(FILE_INFO* info) {	return GetValue(info, FIELD_COMPOSER_SI);}

LPCTSTR GetWriterSI(FILE_INFO* info) {	return GetValue(info, FIELD_WRITER_SI);}

LPCTSTR GetCommissionSI(FILE_INFO* info) {	return GetValue(info, FIELD_COMMISSION_SI);}

MgReader* MgdFeatureNumericFunctions::Execute(){    CHECKNULL((MgReader*)m_reader, L"MgdFeatureNumericFunctions.Execute");    CHECKNULL(m_customFunction, L"MgdFeatureNumericFunctions.Execute");    Ptr<MgReader> reader;    MG_LOG_TRACE_ENTRY(L"MgdFeatureNumericFunctions::Execute");    // TODO: Can this be optimized to process them as they are read?    // TODO: Should we put a limit on double buffer    INT32 funcCode = -1;    bool supported = MgdFeatureUtil::FindCustomFunction(m_customFunction, funcCode);    if (supported)    {        // In case we have int64 but is a custom function use double to evaluate it.        // Since we don't have a type which can make operations with big numbers we will fix only Unique/Min/Max functions        // Even if we treat int64 different from double we don't solve the issue with truncation error.        // If we emulate SUM adding two big numbers we will get overflow even we use int64, e.g.:        // Int64 val1 = 9223372036854775806;        // Int64 val2 = 9223372036854775807;        // Int64 sum = val1 + val2; // the sum value will be -3 so is overflow error        // In the future we will need to implement a type which can handle int64 numbers without getting overflow a sum/avg is calculated.        // Since all other functions calculate a sum we will use double, at least to be able to get the right result for small numbers.        if (!(m_type == MgPropertyType::Int64 && (funcCode == MINIMUM || funcCode == MAXIMUM || funcCode == UNIQUE)))        {            VECTOR values, distValues;            while(m_reader->ReadNext())            {                // TODO: Add support for Geometry extents                double val = GetValue();                values.push_back(val);            }            // Calulate the distribution on the collected values            CalculateDistribution(values, distValues);            // Create FeatureReader from distribution values            reader = GetReader(distValues);        }        else        {            VECTOR_INT64 values, distValues;            while(m_reader->ReadNext())            {                INT64 int64Val = 0;                if (!m_reader->IsNull(m_propertyName))                    int64Val = m_reader->GetInt64(m_propertyName);                values.push_back(int64Val);            }            // Calulate the distribution on the collected values            CalculateDistribution(values, distValues);            // Create FeatureReader from distribution values            Ptr<MgdInt64DataReaderCreator> drCreator = new MgdInt64DataReaderCreator(m_propertyAlias);            reader = drCreator->Execute(distValues);        }    }    else    {        // just return an emty reader        VECTOR distValues;        reader = GetReader(distValues);    }    return reader.Detach();}

LPCTSTR GetOther(FILE_INFO* info) {	return GetValue(info, FIELD_OTHER);}

 inline void PushStatements(std::vector<Statement<REAL_T> > &storage) const {     expr_m.PushStatements(storage);     storage.push_back(Statement<REAL_T > (TANH, GetValue())); }

LPCTSTR GetFileTypeName(FILE_INFO* info) {	return GetValue(info, FILED_FILE_TYPE_NAME);}

//.........这里部分代码省略.........         ExpectedTypeError1(theEnv,"sort",1,"deffunction name expecting two arguments");         ReturnExpression(theEnv,functionReference);         return;        }     }#endif   /*=====================================*/   /* If there are no items to be sorted, */   /* then return an empty multifield.    */   /*=====================================*/   if (argumentCount == 1)     {      EnvSetMultifieldErrorValue(theEnv,returnValue);      ReturnExpression(theEnv,functionReference);      return;     }        /*=====================================*/   /* Retrieve the arguments to be sorted */   /* and determine how many there are.   */   /*=====================================*/   theArguments = (DATA_OBJECT *) genalloc(theEnv,(argumentCount - 1) * sizeof(DATA_OBJECT));   for (i = 2; i <= argumentCount; i++)     {      EnvRtnUnknown(theEnv,i,&theArguments[i-2]);      if (GetType(theArguments[i-2]) == MULTIFIELD)        { argumentSize += GetpDOLength(&theArguments[i-2]); }      else        { argumentSize++; }     }        if (argumentSize == 0)     {      EnvSetMultifieldErrorValue(theEnv,returnValue);      ReturnExpression(theEnv,functionReference);      return;     }      /*====================================*/   /* Pack all of the items to be sorted */   /* into a data object array.          */   /*====================================*/      theArguments2 = (DATA_OBJECT *) genalloc(theEnv,argumentSize * sizeof(DATA_OBJECT));   for (i = 2; i <= argumentCount; i++)     {      if (GetType(theArguments[i-2]) == MULTIFIELD)        {         tempMultifield = (struct multifield *) GetValue(theArguments[i-2]);         for (j = GetDOBegin(theArguments[i-2]); j <= GetDOEnd(theArguments[i-2]); j++, k++)           {            SetType(theArguments2[k],GetMFType(tempMultifield,j));            SetValue(theArguments2[k],GetMFValue(tempMultifield,j));           }        }      else        {         SetType(theArguments2[k],GetType(theArguments[i-2]));         SetValue(theArguments2[k],GetValue(theArguments[i-2]));         k++;        }     }        genfree(theEnv,theArguments,(argumentCount - 1) * sizeof(DATA_OBJECT));   functionReference->nextArg = SortFunctionData(theEnv)->SortComparisonFunction;   SortFunctionData(theEnv)->SortComparisonFunction = functionReference;   for (i = 0; i < argumentSize; i++)     { ValueInstall(theEnv,&theArguments2[i]); }   MergeSort(theEnv,(unsigned long) argumentSize,theArguments2,DefaultCompareSwapFunction);     for (i = 0; i < argumentSize; i++)     { ValueDeinstall(theEnv,&theArguments2[i]); }   SortFunctionData(theEnv)->SortComparisonFunction = SortFunctionData(theEnv)->SortComparisonFunction->nextArg;   functionReference->nextArg = NULL;   ReturnExpression(theEnv,functionReference);   theMultifield = (struct multifield *) EnvCreateMultifield(theEnv,(unsigned long) argumentSize);   for (i = 0; i < argumentSize; i++)     {      SetMFType(theMultifield,i+1,GetType(theArguments2[i]));      SetMFValue(theMultifield,i+1,GetValue(theArguments2[i]));     }        genfree(theEnv,theArguments2,argumentSize * sizeof(DATA_OBJECT));   SetpType(returnValue,MULTIFIELD);   SetpDOBegin(returnValue,1);   SetpDOEnd(returnValue,argumentSize);   SetpValue(returnValue,(void *) theMultifield);  }

////////////////////////////////////////////////////////////////////////// 描    述:  读取指定的配置项的字符串值，并允许指定未配置时的缺省值// 作    者:  邵凯田// 创建时间:  2011-11-13 16:20// 参数说明:  @sGroup表示组名称(中括号的标题)//            @sField表示组内的配置项名称//            @szdefault表示读取失败(未配置的情况下)时的缺省值// 返 回 值:  配置值//////////////////////////////////////////////////////////////////////////SString SIniFile::GetKeyStringValue(SString sGroup, SString sField, SString szdefault /*= ""*/){	if(!IsKey(sGroup,sField))		return szdefault;	return GetValue(sGroup,sField);}

//*========================================================================================//*函数: bool CSmartJZSRCTable::Convert(TSSmartDoc *pDoc, unsigned char *ucRawData)//*功能: 转换结构//*参数: 略//*返回: 是否成功//*说明: 虚基类程序//*========================================================================================bool CSmartJZSRCTable::Convert(int nAuthNo, TSSmartDoc *pDoc, unsigned char *ucRawData, char *pszAdjustCode){	CString  strValue = "" ;	CString  strText = "";	CString  strData = "";	char     szDateTime[7];	CString strDealCode = "20";	//收费机 0232 上机上网机	if( !strcmp(pDoc->m_szMacCode, "0226") || 		!strcmp(pDoc->m_szMacCode, "0232") )	{		strDealCode = "91";	}	//增值机	else if( !strcmp(pDoc->m_szMacCode, "0201") )	{		strDealCode = "90";	}	CTime  t = CTime::GetCurrentTime();	strText.Format("%04d-%02d-%02d %02d:%02d:%02d  ", 		t.GetYear(), t.GetMonth(), t.GetDay(),		t.GetHour(), t.GetMinute(), t.GetSecond());	sprintf(szDateTime, "%04d%02d", t.GetYear(), t.GetMonth()); 	m_strTableName.Format("Smart_JZSource%04d%02d", t.GetYear(), t.GetMonth());	strValue.Format("注册号:%.2X%.2X%.2X%.2X ",ucRawData[0],ucRawData[1],ucRawData[2],ucRawData[3]); strText += strValue ;	GetValue(strValue, m_SRC.sMachineID);	strValue.Format("%s", m_SRC.sMachineID); strData+= strValue;	strValue.Format("扎帐流水:%d ",  ucRawData[6]*256+ucRawData[7]); strText += strValue ;	GetValue(strValue, m_SRC.nSettleInvoice);	strValue.Format("%d", m_SRC.nSettleInvoice); strData+= strValue;	if( !IsValidDateTime(&ucRawData[8])  )	{		char szDateTime[24];		GetCurDateTime(szDateTime);		strValue = szDateTime;  strText += strValue ;		GetValue(strValue, m_SRC.sSettleTime);	}	else	{		strValue.Format("扎帐时间:%04d-%02d-%02d %02d:%02d:%02d ",ucRawData[8]+2000,ucRawData[9],ucRawData[10],ucRawData[11],ucRawData[12],ucRawData[13]);  strText += strValue ;		GetValue(strValue, m_SRC.sSettleTime);	}	strValue.Format("%s", m_SRC.sSettleTime); strData+= strValue;	strValue.Format("起始流水号:%d ",ucRawData[14]*256+ucRawData[15]); strText += strValue ;	GetValue(strValue, m_SRC.nBeginInvoice);	strValue.Format("%d", m_SRC.nBeginInvoice); strData+= strValue;	strValue.Format("结束流水号:%d ",ucRawData[16]*256+ucRawData[17]); strText += strValue ;	GetValue(strValue, m_SRC.nEndInvoice);	strValue.Format("%d", m_SRC.nEndInvoice); strData+= strValue;	strValue.Format("正常消费总笔数:%d ",ucRawData[18]*256+ucRawData[19]); strText += strValue ;	GetValue(strValue, m_SRC.nDealCount);	strValue.Format("%d", m_SRC.nDealCount); strData+= strValue;	strValue.Format("正常消费总金额:%d ",ucRawData[20]+ucRawData[21]*256+ucRawData[22]*65536); strText += strValue ;	GetValue(strValue, m_SRC.nDealAmount);	strValue.Format("%d", m_SRC.nDealAmount); strData+= strValue;	strValue.Format("冲正消费总笔数:%d ",ucRawData[23]*256+ucRawData[24]);  strText += strValue ;	GetValue(strValue, m_SRC.nCancelCount);	strValue.Format("%d", m_SRC.nCancelCount); strData+= strValue;	strValue.Format("冲正消费总金额:%d ",ucRawData[25]+ucRawData[26]*256+ucRawData[27]*65536); strText += strValue ;	GetValue(strValue, m_SRC.nCancelAmount);	strValue.Format("%d", m_SRC.nCancelAmount); strData+= strValue;	strValue.Format("异常消费总笔数%d/n",ucRawData[28]*256+ucRawData[29]); strText += strValue ;	GetValue(strValue, m_SRC.nExcepCount);	strValue.Format("%d", m_SRC.nExcepCount); strData+= strValue;	strValue.Format("异常消费总金额%d/n",ucRawData[30]+ucRawData[31]*256+ucRawData[32]*65536); strText += strValue ;	GetValue(strValue, m_SRC.nExcepACount);	strValue.Format("%d", m_SRC.nExcepACount); strData+= strValue;	strValue.Format("其他交易总笔数:%d ",ucRawData[33]*256+ucRawData[34]); strText += strValue ;	GetValue(strValue, m_SRC.nOtherCount);	strValue.Format("%d", m_SRC.nOtherCount); strData+= strValue;	strValue.Format("扎帐标记:%.2X ",ucRawData[35]); strText += strValue ;	GetValue(strValue, m_SRC.nOuterkeeper);	strValue.Format("%d", m_SRC.nOuterkeeper); strData+= strValue;//.........这里部分代码省略.........

//.........这里部分代码省略.........						client.println("HTTP/1.1 200 OK");						client.println("Connection: close");						Serial.println("SAVE");						Serial.println("");						SD.remove(LOG);						dataFile = SD.open(LOG, FILE_WRITE);						if(dataFile) {				// X=123-Y=45-							dataFile.print("X=");							dataFile.print(X);							dataFile.print("-Y=");							dataFile.print(Y);							dataFile.print("-");							dataFile.close();						}						digitalWrite(redLed,LOW);					}					//ajax RESET info					else if (getStr.startsWith("/Reset/")) {						digitalWrite(redLed,HIGH);						client.println("HTTP/1.1 200 OK");						client.println("Connection: close");						Serial.println("RESET");						Serial.println("");						delay(1);						servoX.detach();						servoY.detach();						digitalWrite(redLed,LOW);						digitalWrite(resetPin, LOW);					}					// ajax SET info					else if (getStr.startsWith("/Coordinate/")) {						digitalWrite(redLed,HIGH);						GetValue();						double temp = analogRead(thermRes);						int phot = analogRead(photoRes);						client.println("HTTP/1.1 200 OK");						client.println("Connection: close");						client.println();						// JSON						client.print("{/"coordinate/":{/"X/":");						client.print(X);						client.print(",/"Y/":");						client.print(Y);						client.print("},/"temp/":");						client.print(GetTemp(temp),1);						client.print(",/"light/":");						client.print(phot);						client.print(",/"network/":/"");						client.print(Ethernet.localIP());						client.print("/",/"file/":[");						for (int i=0; i<HTTP_FILE; i++) {							File dFile = SD.open(GET[i]);							if (dFile) {								if(i>0) {									client.print(",");								}								client.print("{");								client.print("/"name/":/"");								client.print(GET[i]);								client.print("/",/"size/":");								client.print(dFile.size());								client.print("}");							}						}						client.println("]}");

// Returns the text content of the element.void ElementFormControlTextArea::GetInnerRML(Rocket::Core::String& content) const{	content = GetValue();}

 std::string SymbolTable::GetValue(char const* symbol, int length) const {   return GetValue(std::string(symbol, length)); }

const VS_FIXEDFILEINFO *VersionInfo<string>::GetFixedFileInfo() const{    return static_cast<VS_FIXEDFILEINFO *>(GetValue(block_fixed_file_info, 0));}

bool EdiDocument::IsValidValue(size_t row, size_t col, bool doLog ) const {            wxString result = GetColumnDescriptor(col).IsValid(GetValue(row, col));	if ( result.IsEmpty() 		&& GetValue(row, col).IsEmpty() 		&& IsColRequired(row, col) ) {		result = "Value can not be empty.";	}    if ( 0 == result.Cmp(wxEmptyString )         && GetColumnDescriptor(col).GetType().Cmp("choice") == 0        && GetColumnDescriptor(col).GetCrossFieldName().Cmp(wxEmptyString) != 0)     {        const FieldDescriptor& desc = GetColumnDescriptor(col);        int crossIdx = GetColumnIdx(desc.GetCrossFieldName());        const FieldDescriptor& crossDesc = GetColumnDescriptor(crossIdx);        long crossId = 0;        wxString crossValue = GetValue(row, GetColumnIdx(desc.GetCrossFieldName()));        for ( int i=0; i<crossDesc.GetChoicesDesk().size(); i++ ) {            if ( crossValue == crossDesc.PrepareValue(crossDesc.GetChoicesDesk()[i].choice) ) {                crossId = crossDesc.GetChoicesDesk()[i].id;                break;            }        }        result = "Must be one of: ";        for ( i=0; i<desc.GetChoicesDesk().size(); i++ ) {             const IdList& ids = desc.GetChoicesDesk()[i].ids;             for ( int j=0; j<ids.size(); j++ ) {                 if ( crossId == ids[j] ) {                     result += "'"+desc.GetChoicesDesk()[i].choice+"' ";                     if ( GetValue(row, col) == desc.PrepareValue(desc.GetChoicesDesk()[i].choice) ) {                         result = wxEmptyString;                         goto found;                     }                 }             }        }found:;    }	// later than and early than	if ( result.IsEmpty() && (!GetColumnDescriptor(col).GetLaterThan().IsEmpty() || !GetColumnDescriptor(col).GetEarlyThan().IsEmpty()) ) {		wxDateTime this_date;		if ( !GetColumnDescriptor(col).GetLaterThan().IsEmpty() ) {			wxDateTime l_date;			size_t later_idx = GetColumnIdx(GetColumnDescriptor(col).GetLaterThan());			if ( l_date.ParseFormat(GetValue(row, later_idx), "%m/%d/%Y") ) {				if ( this_date.ParseFormat(GetValue(row, col), "%m/%d/%Y") && !GetColumnDescriptor(col).GetLaterThan().IsEmpty() ) {					if ( !this_date.IsLaterThan(l_date) ) {						result = "Date is not later than " + GetColumnDescriptor(col).GetLaterThan() + " value [" + l_date.Format("%m/%d/%Y") + "].";					}				}			}		}		if ( !GetColumnDescriptor(col).GetEarlyThan().IsEmpty() ) {			wxDateTime e_date;			size_t early_idx = GetColumnIdx(GetColumnDescriptor(col).GetEarlyThan());			if ( e_date.ParseFormat(GetValue(row, early_idx), "%m/%d/%Y") ) {				if ( this_date.ParseFormat(GetValue(row, col), "%m/%d/%Y") && !GetColumnDescriptor(col).GetEarlyThan().IsEmpty() ) {					if ( !this_date.IsEarlierThan(e_date) ) {						result = "Date is not earlier than " + GetColumnDescriptor(col).GetEarlyThan() + " value [" + e_date.Format("%m/%d/%Y") + "].";					}				}			}		}	}    // check/then/else    if ( result.IsEmpty() && !GetColumnDescriptor(col).GetCheckEmptyName().IsEmpty() ) {        const FieldDescriptor& colDesc = GetColumnDescriptor(col);        wxString checkValue = GetValue(row, GetColumnIdx(            colDesc.GetCheckEmptyName())).Trim(false).Trim(true);        wxString pattern = checkValue.IsEmpty() ? colDesc.GetEmptyThenPattern() : colDesc.GetEmptyElsePattern();        if ( !colDesc.MatchPattern(GetValue(row, col), pattern) ) {			EdiDocument* d = (EdiDocument*)this;            if ( pattern.IsEmpty() ) {                d->SetValue(row, col, wxEmptyString);            } else {                if ( '!' != pattern[0] ) {                    d->SetValue(row, col, pattern);                } else {                    result = "Value cannot be " + pattern.Mid(1);                }            }        }    }    // check_value/check_value_then/check_value_else    if ( result.IsEmpty() && !GetColumnDescriptor(col).GetCheckValueField().IsEmpty() ) {        const FieldDescriptor& colDesc = GetColumnDescriptor(col);        wxString checkValue;		EdiDocument* d = (EdiDocument*)this;		if ( 0 == colDesc.GetCheckValueField().SubString(0,6).CmpNoCase("header:") ) {			checkValue = d->GetFieldByName(colDesc.GetCheckValueField().Mid(7)).GetValue().Trim(false).Trim(true);		} else {			checkValue = GetValue(row, GetColumnIdx(colDesc.GetCheckValueField())).Trim(false).Trim(true);//.........这里部分代码省略.........

LPCTSTR GetTechnicianSI(FILE_INFO* info) {	return GetValue(info, FIELD_TECHNICIAN_SI);}