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pymsoft
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c++

Post by pymsoft »

Sigo con las funciones en C++, ahora tengo que lograr hacer que funcione el lector de codigos de barras.

Code: Select all

#pragma BEGINDUMP
#include "c:\lavwin\teve\mobitron\inc\Barcode.h"

static CBarcode * bar = NULL;

// BARCODE //

HB_FUNC( BAR_POWERON ) // param: hWnd
{
   if( bar == NULL )
   {
      bar = new CBarcode;
   }
   return bar->Bar_PowerOn( hb_parnl(1) )
}


HB_FUNC( BAR_POWEROFF ) // param: hWnd
{
   if( bar == NULL )
   {
      bar = new CBarcode;
   }
   return bar->Bar_PowerOff( hb_parnl(1) )
}


#pragma ENDDUMP



Luego de esto, me da error al compilar:
teve.c
c:\lavwin\teve\mobitron\inc\barcode.h(12) : fatal error C1189: #error : include
'stdafx.h' before including this file for PCH

Entiendo que tengo que poner ese include que me falta.
Lo busco en los ejemplos de C++ que me proporcionaron y lo agrego.

luego de eso me da este error:

c:\lavwin\teve\mobitron\inc\stdafx.h(17) : fatal error C1083: Cannot open include file: 'afxwin.h': No such file or directory


Muy bien, lo busco por todo el disco y lo encuentro:
en esta carpeta: C:\Programmi\Windows CE Tools\wce400\STANDARDSDK\Mfc\Include


lo agrego y me da este error:


c:\lavwin\teve\mobitron\inc\stdafx.h(17) : fatal error C1083: Cannot open includ
e file: 'afxwin.h': Invalid argument


Alguna idea al respecto?

Gracias
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Antonio Linares
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Post by Antonio Linares »

Prueba a añadir este flag al compilar con clarm.exe

-IC:\Programmi\Windows CE Tools\wce400\STANDARDSDK\Mfc\Include
regards, saludos

Antonio Linares
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pymsoft
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Post by pymsoft »

bueno, el mensaje de error cambió:
teve.c
c:\programmi\windows ce tools\wce400\standardsdk\mfc\include\afxv_w32.h(137) : fatal error C1083: Cannot open include file: 'zmouse.h': No such file or directory

El tema es que ese archivo si que no lo tengo por ningun lado.
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pymsoft
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Post by pymsoft »

creando un zmouse.h sin nada dentro (visto que sirve solo para la ruedita del mouse), me da este error:

c:\programmi\windows ce tools\wce400\standardsdk\mfc\include\afxv_cpu.h(23) : fatal error C1189: #error : afxv_cpu.h is only for MIPS R4000, DEC AXP, and IBM PowerPC builds

gracias
Pedro Gonzalez
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Antonio Linares
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Post by Antonio Linares »

Pedro,

Que contiene Barcode.h ?

La idea es modificarlo para que sólo tenga la declaración de la clase que vas a usar
regards, saludos

Antonio Linares
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pymsoft
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Post by pymsoft »

Este es el contenido de barcode.h

Code: Select all

// Barcode.h : main header file for the BARCODE DLL
//

#if !defined(AFX_BARCODE_H__C9134DC0_653B_4807_B317_1D4B2A6971D8__INCLUDED_)
#define AFX_BARCODE_H__C9134DC0_653B_4807_B317_1D4B2A6971D8__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

#ifndef __AFXWIN_H__
	#error include 'stdafx.h' before including this file for PCH
#endif

#include "resource.h"		// main symbols
#include "../inc/BarcodeType.h"

/////////////////////////////////////////////////////////////////////////////
// CBarcodeApp
// See Barcode.cpp for the implementation of this class
//
class __declspec(dllexport) CBarcode
{
public:
	INT Bar_PortOpen(HWND hWnd);
	INT Bar_PortClose(HWND hWnd);
	INT DeSelectScanner(HANDLE hPwr, HWND hWnd);
	INT ReadyForBarIO();
	INT Bar_ScanData(int *sType, char *sData, int *iSize);
	INT CloseScannerDeviceHandle();
	INT Bar_ScannerEnd(HANDLE hPwr, HWND hWnd);
	INT Bar_ScannerStart(HANDLE hPwr, HWND hWnd);
	INT ClosePrtDeviceHandle();
	INT SelectPrinter(HANDLE hPwr, HANDLE hWnd);
	INT OpenPrtDevice();
	HANDLE GetPrtDeviceHandle();
	INT Bar_PowerOff(HWND hWnd);
	INT SelectScanner(HANDLE hPwr, HWND hWnd);
	INT OpenScannerDevice();
	HANDLE GetScannerDeviceHandle();
	int Bar_PowerOn(HWND hWnd);
	CBarcode();
	virtual ~CBarcode();
};

class CBarcodeApp : public CWinApp
{
public:
	CBarcodeApp();

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CBarcodeApp)
	public:
	virtual int ExitInstance();
	virtual BOOL InitInstance();
	//}}AFX_VIRTUAL

	//{{AFX_MSG(CBarcodeApp)
		// NOTE - the ClassWizard will add and remove member functions here.
		//    DO NOT EDIT what you see in these blocks of generated code !
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft eMbedded Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_BARCODE_H__C9134DC0_653B_4807_B317_1D4B2A6971D8__INCLUDED_)


y este es el contenido de barcodetype.h

Code: Select all


#define NOT_APPLICABLE				11
#define B_CODE_39						12
#define B_CODABAR						13
#define B_CODE_128					14
#define B_DISCRETE_2D5				15		
#define B_IATA_2D5					16
#define B_INTERLEAVED_2D5				17
#define B_CODE_93						18
#define B_UPC_A						19
#define B_UPC_A_2SUP					20
#define B_UPC_A_5SUP					21
#define	B_UPC_E0						22
#define B_UPC_E0_2SUP					23
#define B_UPC_E0_5SUP					24
#define B_EAN_8						25
#define B_EAN_8_2SUP					26
#define B_EAN_8_5SUP					27
#define B_EAN_13_5SUP					28
#define B_EAN_13						29
#define B_EAN_13_2SUP					30
#define B_MSI_PLESSEY					31
#define B_EAN_128						32
#define B_UPC_E1						33
#define B_UPC_E1_2SUP					34
#define B_UPC_E1_5SUP					35
#define B_TRIOPTIC_CODE_39			36
#define B_BOOKLAND_EAN				37
#define B_COUPON_CODE					38
#define B_PDF417						39
#define DATA_ERROR					40
#define NO_RESPONSE					41
#define NOT_SUPPORTED				42

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Pedro Gonzalez
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Antonio Linares
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Post by Antonio Linares »

Pedro,

Prueba a quitar los includes que hay dentro de barcode.h y compila a ver que errores aparecen
regards, saludos

Antonio Linares
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pymsoft
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Post by pymsoft »

Antonio, los errores son los siguientes:




c:\lavwin\teve\mobitron\inc\barcode.h(47) : error C2504: 'CWinApp' : base class
undefined
c:\lavwin\teve\mobitron\inc\barcode.h(64) : error C2143: syntax error : missing
';' before '}'
teve.prg(4079) : error C2440: 'initializing' : cannot convert from 'const int' t
o 'class CBarcode'
No constructor could take the source type, or constructor overload resol
ution was ambiguous
teve.prg(4153) : error C2678: binary '==' : no operator defined which takes a le
ft-hand operand of type 'class CBarcode' (or there is no acceptable conversion)
teve.prg(4155) : error C2679: binary '=' : no operator defined which takes a rig
ht-hand operand of type 'class CBarcode *' (or there is no acceptable conversion
)
teve.prg(4158) : error C2143: syntax error : missing ';' before 'return'
teve.prg(4158) : error C2819: type 'CBarcode' does not have an overloaded member
'operator ->'
c:\lavwin\teve\mobitron\inc\barcode.h(23) : see declaration of 'CBarcode
'
teve.prg(4158) : error C2227: left of '->Bar_PowerOn' must point to class/struct
/union
teve.prg(4159) : error C2143: syntax error : missing ';' before '}'
teve.prg(4162) : error C2678: binary '==' : no operator defined which takes a le
ft-hand operand of type 'class CBarcode' (or there is no acceptable conversion)
teve.prg(4164) : error C2679: binary '=' : no operator defined which takes a rig
ht-hand operand of type 'class CBarcode *' (or there is no acceptable conversion
)
teve.prg(4167) : error C2143: syntax error : missing ';' before 'return'
teve.prg(4167) : error C2819: type 'CBarcode' does not have an overloaded member
'operator ->'
c:\lavwin\teve\mobitron\inc\barcode.h(23) : see declaration of 'CBarcode
'
teve.prg(4167) : error C2227: left of '->Bar_PowerOff' must point to class/struc
t/union
teve.prg(4168) : error C2143: syntax error : missing ';' before '}'


Saludos


P.D. Si quieres puedo enviarte los .h, las .lib con un programa que incluya solo las llamadas a funciones contenidas allí.
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pymsoft
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Post by pymsoft »

Ahora dejé solo esta parte de codigo para que fuera todo mas claro:

Code: Select all


#include "FWCE.ch"


FUNCTION Main()

  msginfo( Bar_PowerOn() )

RETURN NIL



#pragma BEGINDUMP

#include "hbapi.h"
#include "windows.h"
#include "c:\lavwin\teve\mobitron\inc\Barcode.h"


static CBarcode * bar = NULL;

// BARCODE //

HB_FUNC( BAR_POWERON ) // param: hWnd
{
   if( bar == NULL )
   {
      bar = new CBarcode;
   }
   Sleep(30);
   bar->Bar_PowerOn( (HWND) hb_parnl( 1 ) );
}


#pragma ENDDUMP



Ahora el error es el siguiente:




laser.c
c:\lavwin\teve\mobitron\inc\barcode.h(47) : error C2504: 'CWinApp' : base class undefined
c:\lavwin\teve\mobitron\inc\barcode.h(64) : error C2143: syntax error : missing ';' before '}'

Saludos
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Antonio Linares
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Post by Antonio Linares »

Quita esta declaración del fichero de cabecera ya que no vas a usar esta clase:

Code: Select all

class CBarcodeApp : public CWinApp 
{ 
public: 
   CBarcodeApp(); 

// Overrides 
   // ClassWizard generated virtual function overrides 
   //{{AFX_VIRTUAL(CBarcodeApp) 
   public: 
   virtual int ExitInstance(); 
   virtual BOOL InitInstance(); 
   //}}AFX_VIRTUAL 

   //{{AFX_MSG(CBarcodeApp) 
      // NOTE - the ClassWizard will add and remove member functions here. 
      //    DO NOT EDIT what you see in these blocks of generated code ! 
   //}}AFX_MSG 
   DECLARE_MESSAGE_MAP() 
}; 
regards, saludos

Antonio Linares
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Post by pymsoft »

Antonio, resuelto este problema de la clase no usada.... tengo esta funcion para hacer el wrapper, pero no se como:

INT Bar_ScanData(int *sType, char *sData, int *iSize);

bar.Bar_ScanData(&sBarcodeType, &sBarcodeData[0], &iBarcodeSize);

hice asi:

Code: Select all

  HB_FUNC( SCANDATA ) // param: sBarcCodeType, sBarcodeData, iBarcodeSize
  {
//     bar->Bar_ScanData(&sBarcodeType, &sBarcodeData[0], &iBarcodeSize);
     bar->Bar_ScanData( hb_parni(1), hb_parc(2), hb_parni(3) );
  }



pero claramente, no llega a compilar dandome este error:


teve.prg(4254) : error C2664: 'Bar_ScanData' : cannot convert parameter 1 from 'int' to 'int *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast


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Pedro Gonzalez
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Post by Antonio Linares »

Prueba así. Has de pasar los parámetros por referencia:

Code: Select all

HB_FUNC( SCANDATA ) // param: sBarcCodeType, sBarcodeData, iBarcodeSize 
{ 
   int sBarcCodeType = hb_parni(1);
   char * sBarcodeData = hb_parc(2);
   int iBarcodeSize = hb_parni(3);
 
   bar->Bar_ScanData( &sBarcodeType, &sBarcodeData[0], &iBarcodeSize );
 
  hb_storni( sBarcodeType, 1 );
  hb_storc( sBarcodeData, 2 );
  hb_storni( iBarcodeSize, 3 ); 
}
Estás seguro de que es &sBarcodeData[0] ? Lo lógico sería sBarcodeData
regards, saludos

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Post by pymsoft »

Antonio, muchas gracias, ya verè ahora de hacerlo funcionar.


este es el ejemplo del manual:

Code: Select all

Example using Scan Key 
 
CBarcode bar; 
BOOL CBarAppDlg::PreTranslateMessage(MSG* pMsg)  
{ 
 char sBarcodeData[128]; 
 int iBarcodeSize, sBarcodeType; 
 int iRetValue; 
 TCHAR cKeyCode; 
 HANDLE hScannerPwr; 
 UINT iMessage; 
 
  iMessage = pMsg->message; 
 cKeyCode = pMsg->wParam; 
 
  if (iMessage == WM_KEYUP) { 
  switch (cKeyCode) 
  { 
   case VK_F3: 
   case VK_F4: 
    hScannerPwr = bar.GetScannerDeviceHandle(); 
    bar.Bar_ScannerStart(hScannerPwr, m_hWnd); 
    iRetValue = bar.Bar_ScanData(&sBarcodeType, 
&sBarcodeData[0], &iBarcodeSize); 
    bar.Bar_ScannerEnd(hScannerPwr, m_hWnd); 
    bar.CloseScannerDeviceHandle(); 
    break; 
  }  
 }  
 return CDialog::PreTranslateMessage(pMsg); 
} 

Saludos
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Post by pymsoft »

Antonio, muchas gracias por tu ayuda.

Ya puedo leer codigos de barra desde mi programa en FWH.

:lol:
Pedro Gonzalez
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