Method LoadString

samples/Windows/WTL/atlmisc.h:2016–2050

Windows support

	// Windows support
	BOOL LoadString(UINT nID)   // load from string resource (255 chars max.)
	{
#ifdef _UNICODE
		const int CHAR_FUDGE = 1;   // one TCHAR unused is good enough
#else
		const int CHAR_FUDGE = 2;   // two BYTES unused for case of DBC last char
#endif

		// try fixed buffer first (to avoid wasting space in the heap)
		TCHAR szTemp[256];
		int nCount =  sizeof(szTemp) / sizeof(szTemp[0]);
		int nLen = _LoadString(nID, szTemp, nCount);
		if (nCount - nLen > CHAR_FUDGE)
		{
			*this = szTemp;
			return (nLen > 0);
		}

		// try buffer size of 512, then larger size until entire string is retrieved
		int nSize = 256;
		do
		{
			nSize += 256;
			LPTSTR lpstr = GetBuffer(nSize - 1);
			if(lpstr == NULL)
			{
				nLen = 0;
				break;
			}
			nLen = _LoadString(nID, lpstr, nSize);
		} while (nSize - nLen <= CHAR_FUDGE);
		ReleaseBuffer();

		return (nLen > 0);
	}

#ifndef _UNICODE
	// ANSI <-> OEM support (convert string in place)