139 lines
3.6 KiB
C++
139 lines
3.6 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1999 - 1999
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//
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// File: string.cpp
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//
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// Contents: Utility functions for the CString class
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//
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// History: 10-Aug-99 VivekJ Created
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//
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//--------------------------------------------------------------------------
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#include <stdafx.h>
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/*+-------------------------------------------------------------------------*
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*
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* LoadString
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*
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* PURPOSE: A function to load strings from the string module, not the AfxModule
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*
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* PARAMETERS:
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* CString & str :
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* UINT nID :
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*
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* RETURNS:
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* BOOL
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*
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*+-------------------------------------------------------------------------*/
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BOOL LoadString(CString &str, UINT nID)
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{
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const size_t STRING_LEN_INCREMENT = 256;
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str.Empty();
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// try fixed buffer first (to avoid wasting space in the heap)
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static TCHAR szTemp[STRING_LEN_INCREMENT];
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int nLen = ::LoadString(GetStringModule(), nID, szTemp, countof(szTemp));
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if (countof(szTemp) - nLen > 1)
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{
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szTemp[nLen] = 0;
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str = szTemp;
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return nLen > 0;
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}
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// try buffer size of 2*STRING_LEN_INCREMENT, then larger size until entire string is retrieved
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int nSize = STRING_LEN_INCREMENT;
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do
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{
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nSize += STRING_LEN_INCREMENT;
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nLen = ::LoadString(GetStringModule(), nID, str.GetBuffer(nSize-1), nSize);
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} while (nSize - nLen <= 1);
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str.ReleaseBuffer();
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return (nLen > 0);
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}
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/*+-------------------------------------------------------------------------*
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*
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* FormatStrings
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*
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* PURPOSE: Similar to AfxFormatStrings, but uses GetStringModule() instead of
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* AfxGetModuleInstance.
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*
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* PARAMETERS:
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* CString& rString :
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* UINT nIDS :
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* LPCTSTR const :
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* int nString :
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*
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* RETURNS:
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* void
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*
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*+-------------------------------------------------------------------------*/
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void FormatStrings(CString& rString, UINT nIDS, LPCTSTR const* rglpsz, int nString)
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{
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// empty the result (in case we fail)
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rString.Empty();
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// get the format string.
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CString strFormat;
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if (!LoadString(strFormat, nIDS))
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{
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TraceError(_T("FormatStrings"), SC(E_INVALIDARG));
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return; // failed...
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}
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AfxFormatStrings(rString, strFormat, rglpsz, nString);
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}
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/*+-------------------------------------------------------------------------*
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*
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* FormatString1
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*
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* PURPOSE: Similar to AfxFormatString1, but uses GetStringModule() instead
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* of AfxGetModuleInstance()
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*
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* PARAMETERS:
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* CString& rString :
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* UINT nIDS :
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* LPCTSTR lpsz1 :
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*
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* RETURNS:
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* void
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*
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*+-------------------------------------------------------------------------*/
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void FormatString1(CString& rString, UINT nIDS, LPCTSTR lpsz1)
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{
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FormatStrings(rString, nIDS, &lpsz1, 1);
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}
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/*+-------------------------------------------------------------------------*
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*
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* FormatString2
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*
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* PURPOSE: Similar to AfxFormatString2, but uses GetStringModule() instead
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* of AfxGetModuleInstance()
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*
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* PARAMETERS:
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* CString& rString :
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* UINT nIDS :
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* LPCTSTR lpsz1 :
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* LPCTSTR lpsz2 :
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*
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* RETURNS:
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* void
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*
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*+-------------------------------------------------------------------------*/
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void FormatString2(CString& rString, UINT nIDS, LPCTSTR lpsz1, LPCTSTR lpsz2)
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{
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LPCTSTR rglpsz[2];
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rglpsz[0] = lpsz1;
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rglpsz[1] = lpsz2;
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FormatStrings(rString, nIDS, rglpsz, 2);
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}
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