C / C++ / MFC

CWnd* PASCAL CWnd::FromHandle(HWND hWnd)
{
	CHandleMap* pMap = afxMapHWND(TRUE); //create map if not exist
	ASSERT(pMap != NULL);
	CWnd* pWnd = (CWnd*)pMap->FromHandle(hWnd);

#ifndef _AFX_NO_OCC_SUPPORT
	pWnd->AttachControlSite(pMap);
#endif

	ASSERT(pWnd == NULL || pWnd->m_hWnd == hWnd);
	return pWnd;
}

// Use a constructor to initialize the string
std::string *text;
text = new std::string("Assigned Text");

// Use the assignment operator to initialize the string
std::string *text;
text = new std::string();
*text = "Assigned Text";

// Use a constructor to initialize a string on the stack
std::string text("Assigned Text");

// Use the assignment operator to initialize a string object
std::string text;
text = "Assigned Text";

Mark Salsbery
Microsoft MVP - Visual C++

#include "atlconv.h"

// function to convert wide string to string.
string* WstringToString( wstring& WideString )
{
    // Allocate the string.
    string* pString = new string;
    
    {
        USES_CONVERSION;
        
        // converted string.
        *pString = W2A( WideString.c_str());
    }
    
    return pString;
}

// Your main function.
void ConversionFunction() 
{
    // The wide string.
    wstring WideString = L"Hello";
    string* pString = WstringToString( WideString );

    // after usage, delete the allocated string.
    delete pString;
}