C / C++ / MFC

#include "stdafx.h"
#include "resource.h"

#include <TCHAR.h>

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
  HRSRC hRsrc = ::FindResource( hInstance,
                                MAKEINTRESOURCE( IDR_TEXTFILE ),
                                _T("TEXTFILE") ); // *** My custom res type

  if ( NULL != hRsrc )
  {
    HGLOBAL hGlob = ::LoadResource( NULL, hRsrc );

    if ( NULL != hGlob )
    {
      DWORD dwSize  = ::SizeofResource( NULL, hRsrc );
      LPVOID lpVoid = ::LockResource( hGlob );

      if ( NULL != lpVoid )
      {
        // *** Now you can work with the loaded resource.

        // *** In this case, we now it is a text file,
        // *** so cast it to a string
        LPCTSTR lpszString = reinterpret_cast< LPCTSTR>( lpVoid );

        MessageBox( NULL, lpszString, _T("From resource"), MB_OK );
      }
    }
  };

  return 0;
}

LPCTSTR lpszString = reinterpret_cast< LPCTSTR>( lpVoid );
TCHAR *tcBuffer    = new TCHAR[ dwSize + 1 ];
if ( NULL != tcBuffer )
{
  ZeroMemory( tcBuffer, ( dwSize + 1 ) * sizeof( TCHAR ) );
  memcpy( tcBuffer, lpszString, dwSize * sizeof( TCHAR ) );
}

<br />
double GetYourDoubleVar() {return m_dYourdoubleVar;}<br />

<br />
BOOL GetYourDoubleVar(double* d)<br />
{<br />
    if(m_pdYourDouble == NULL)<br />
        return FALSE;<br />
    // else<br />
    d = m_pdYourDouble;<br />
    m_pdYourDouble = NULL; // remode this line if you want both dialogs to access the double<br />
    return TRUE;<br />
}<br />

	CMyDialogNumber2 Dlg;<br />
<br />
	if( Dlg.DoModal() )<br />
	{<br />
		UpdateData();<br />
		m_CurrentWindowValue = Dlg.m_PopUpWindowValue; // both m_... are double.<br />
        }<br />

CString cc="Ec\%0B";

message.Format(cc);

m_File.WriteString(message);

CString cc="Ec%0B";
m_File.WriteString(cc);