// EgtInterface.cpp: definisce le funzioni esportate per l'applicazione DLL.
//

#include "stdafx.h"
#include "/EgtDev/Include/EInAPI.h"
#include <string>

using namespace std ;

//-----------------------------------------------------------------------------
double
__stdcall Summ( double dA, double dB)
{
   return ( dA + dB) ;
}

//-----------------------------------------------------------------------------
int
__stdcall Summ2( double& dA, double dB)
{
   dA += dB ;
   bool bOk = false ;
   return ( bOk ? 1 : 0) ;
}

//-----------------------------------------------------------------------------
int
__stdcall Append( const wchar_t* wsA, wchar_t*& wsB)
{
   wstring wsMy = wsA + wstring( L"_dalC++") ;
   wsB = _wcsdup( wsMy.c_str()) ;
   return  (( wsB == nullptr) ? 0 : 1) ;
}

//-----------------------------------------------------------------------------
int
__stdcall FreeMemory( void* pMem)
{
   if ( pMem == nullptr)
      return 0 ;
   free( pMem) ;
   return 1 ;
}

//-----------------------------------------------------------------------------
int
__stdcall SetPoint( double ptP[3])
{
   ptP[0] += 10 ;
   ptP[1] += 20 ;
   ptP[2] += 30 ;

   return 1 ;
}

//-----------------------------------------------------------------------------
int
__stdcall OutText( HWND hWnd, const wchar_t* wsA)
{
   SetWindowText( hWnd, wsA) ;

   return 1 ;
}

//-----------------------------------------------------------------------------
int
__stdcall DrawCross( HWND hWnd, int nX, int nY, int nDim)
{
   RECT rc ;
   GetClientRect( hWnd, &rc) ; 

   HDC hdc = GetDC( hWnd) ; 

   HGDIOBJ hPen = CreatePen( PS_SOLID, 1, RGB( 255,0,0)) ;
   HGDIOBJ hPenOld = SelectObject( hdc, hPen) ;  

   MoveToEx( hdc, nX - nDim, nY, (LPPOINT) NULL) ; 
   LineTo( hdc, nX + nDim, nY); 
   MoveToEx( hdc, nX,  nY - nDim, (LPPOINT) NULL) ; 
   LineTo( hdc,  nX,  nY + nDim); 

   SelectObject( hdc, hPenOld) ; 
   DeleteObject( hPen) ; 
  
   ReleaseDC( hWnd, hdc) ; 

   return 1 ;
}