CTktFlds

CTktFlds is a C++ class that is a wrapper around struct tktfld_struct to simplify ticket programming.

Constructor

CTktFlds(void);

Parameters

Constructor does not accept any parameters

Examples

CTktFlds flds;

This contructs the object.

Member Functions

Clear

Clears all references or a specified item.

void Clear(void);

void Clear(int nFld);

Parameters

• nFld - Ticket item to clear

Version with no parameters clears all fields

Return Value

Function does not return a result.

Remarks

Examples

CTktFlds flds;
flds.Set(TKT_FLD_TIME, strTime);
flds.Set(TKT_FLD_GROSS, strGross);
PrintTkt(TKT_STD, flds);

CTktFlds flds;
flds.Set(TKT_FLD_TIME, strTime);
flds.Set(TKT_FLD_GROSS, strGross);
flds.PrintTkt(TKT_STD);

// Clear the entire flds object to start over
flds.Clear();
flds.Set(TKT_FLD_TIME, strTime);
flds.Set(TKT_FLD_NET, strNet);
flds.PrintTkt(TKT_ALT);

CTktFlds flds;
flds.Set(TKT_FLD_TIME, strTime);
flds.Set(TKT_FLD_GROSS, strGross);
flds.PrintTkt(TKT_STD);

// Clear the gross weight reference so it will not print on the alternate ticket, time will still print
flds.Clear(TKT_FLD_GROSS);
flds.Set(TKT_FLD_NET, strNet);
flds.PrintTkt(TKT_ALT);

Set

Sets a reference

void Set(int nFld, string& str);
void Set(int nFld, char* psz);
void Set(int nFld, const char* psz);

Parameters

• nFld - Field to set
• str - String variable
• psz - pointer to character array

Retrun Value

Function does not return any result.

Remarks

The TKT_FLD_xxx definitions relate to the ticket field position information provided in the "Configuration" program. Refer to the chart below.

ID	Typical use	Code Character
TKT_FLD_GROSS	Gross weight	1
TKT_FLD_TARE	Tare weight	2
TKT_FLD_NET	Net weight	3
TKT_FLD_TIME	Time	4
TKT_FLD_DATE	Date	5
TKT_FLD_ID	ID	6
TKT_FLD_CN	Consecutive number	7
TKT_FLD_UNITS	Weight units	8
TKT_FLD_DSP_WT	Display weight	9
TKT_FLD_PC_CNT	Piece count	A
TKT_FLD_TOT_CNT	Total count	B
TKT_FLD_ID1	ID1	C
TKT_FLD_ID2	ID2	D
TKT_FLD_ID3	ID3	E
TKT_FLD_G_ACCUM	Gross weight accumulator	F
TKT_FLD_N_ACCUM	Net weight accumulator	G
TKT_FLD_PRMPT1	Prompt 1	H
TKT_FLD_PRMPT2	Prompt 2	I
TKT_FLD_PRMPT3	Prompt 3	J
TKT_FLD_REF1	Reference 1	K
TKT_FLD_REF2	Reference 2	L
TKT_FLD_REF3	Reference 3	M
TKT_FLD_CNV_NET	Converted net weight	Z

The following are not standard nControl fields:

ID	Typical use	Code Character
TKT_FLD_CNV_UNITS	Converted weight units	0 (Zero)
TKT_FLD_CNV_DSP_WT	Converted display weight	U
TKT_FLD_CNV_G_ACCUM	Converted gross accumulator	V
TKT_FLD_CNV_N_ACCUM	Converted net accumulator	W
TKT_FLD_CNV_GROSS	Converted gross weight	X
TKT_FLD_CNV_TARE	Converted tare weight	Y
TKT_FLD_IN_TIME	Time In - First pass time	N
TKT_FLD_IN_DATE	Date In - First pass date	O
TKT_FLD_ID4	ID4	P
TKT_FLD_PRMPT4	Prompt 4	Q
TKT_FLD_CUSTOM	Custom field	R

The Set function does not copy the provided data, but only creates a reference to it. The provided data must remain in scope until after the PrintTkt function is performed (Otherwise garbled data may appear in the output or the indicator may crash).

Example

string strTime = GetTimeStr(1); // Include seconds
string strGross = FormatGrossWt(1);

CTktFlds flds;
flds.Set(TKT_FLD_TIME, strTime);
flds.Set(TKT_FLD_GROSS, strGross);
flds.PrintTkt(TKT_STD);

SetEvent

Sets an event to allow the application to do some processing during printing

void SetEvent(void* userData, TKT_EVENT func);

Parameters

• userData - Pointer to anything that may be useful to the event function
• func - Event function

Retrun Value

Function does not return any result.

Remarks

The event function receives four parameters. tkt is the ticket format TKT_STD, TKT_ALT, TKT_FPASS, TKT_LOG, TKT_SPEC1, ... TKT_SPEC6. p is a pointer to the struct tktfld_struct, file is the FILE* pointer for the output, code is the point during printing TKT_EVENT_BEFORE_BEGIN_PRINT (before begin print codes are printed) TKT_EVENT_AFTER_BEGIN_PRINT (after the begin print codes are printed but before any ticket text is printed) TKT_EVENT_BEFORE_END_PRINT (after ticket text is printed but before ending print codes are printed) TKT_EVENT_AFTER_END_PRINT (after end print codes are printed).

Example

struct tran_info_struct
{
    int tktNum;
    // ... other data
} tran;

TKT_EVENT(PrintBarCode)
{
   if(tkt == TKT_FPASS && code == TKT_EVENT_BEFORE_END_PRINT)
   {
      // Print bar code of the ticket number on P600 printer
      struct tran_info_struct* pTran = (tran_info_struct*)p->userStruct;
      if(pTran != NULL)
      {
          fprintf(file, "%cb428%c%07d%c", 0x1B, 0x40, pTran->tktNum, 0x1E);
      }
   }
   return 0;
}


void AppPrint(void)
{
   string strTime = GetTimeStr(1); // Include seconds
   string strTare = FormatTareWt(1);

   tran.tktNum++;

   CTktFlds flds;
   flds.Set(TKT_FLD_TIME, strTime);
   flds.Set(TKT_FLD_TARE, strTare);

   flds.SetEvent(&tran, TktEventPrintBarCode);

   flds.PrintTkt(TKT_FPASS);
}