NxRefreshOverride(17) Category

Category Description

Only sent if exchange open/high/low/last is significantly different than trading record summary.

Category Identification

pNxCoreMessage->coreData.Category.pnxStringCategory->Atom	17
pNxCoreMessage->coreData.Category.pnxStringCategory->String	NxRefreshOverride

Update Time and Frequency

Approximate Time	Info
Constant Updates	Constant updates throughout the day

Category Fields | 5

Index	FieldName	FieldType	C Code	Info
0	First	NxCFT_PRICE	pnxFields[0].data.nxPrice	Override the open trade
1	High	NxCFT_PRICE	pnxFields[1].data.nxPrice	Override the high trade
2	Low	NxCFT_PRICE	pnxFields[2].data.nxPrice	Override the low trade
3	Last	NxCFT_PRICE	pnxFields[3].data.nxPrice	Override the last trade
4	VolDiff	NxCFT_32BIT	pnxFields[4].data.i32Bit	Difference in volume after the override

Code Sample from CategoryDumper project:

void onNxCoreCategory_17(const NxCoreMessage *pNxCoreMsg)
{
     NxCategoryField *pField;
			 
     // Print the category num and the Symbol
     PrintSymbol(pNxCoreMsg); 			 
 			 
     pField=&pNxCoreMsg->coreData.Category.pnxFields[0];
     if (pField->Set)
         printf("First: %0.4f \n",
                pfNxCorePriceToDouble(pField->data.nxPrice.Price,
                                      pField->data.nxPrice.PriceType)); 			 
 			 
     pField=&pNxCoreMsg->coreData.Category.pnxFields[1];
     if (pField->Set)
         printf("High: %0.4f \n",
                pfNxCorePriceToDouble(pField->data.nxPrice.Price,
                                      pField->data.nxPrice.PriceType)); 			 
 			 
     pField=&pNxCoreMsg->coreData.Category.pnxFields[2];
     if (pField->Set)
         printf("Low: %0.4f \n",
                pfNxCorePriceToDouble(pField->data.nxPrice.Price,
                                      pField->data.nxPrice.PriceType)); 			 
 			 
     pField=&pNxCoreMsg->coreData.Category.pnxFields[3];
     if (pField->Set)
         printf("Last: %0.4f \n",
                pfNxCorePriceToDouble(pField->data.nxPrice.Price,
                                      pField->data.nxPrice.PriceType)); 			 
 			 
     pField=&pNxCoreMsg->coreData.Category.pnxFields[4];
     if (pField->Set)			 
         printf("Vol Diff: %d \n",pField->data.i32Bit);     
}

API Documentation