71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#include "dllcom.h"
|
|
#include <assert.h>
|
|
|
|
// Converts an OLE string (UNICODE) to an ANSI string. The caller
|
|
// must use CoTaskMemFree to free the memory
|
|
LPSTR
|
|
AllocTaskAnsiString(LPOLESTR lpszString)
|
|
{
|
|
LPSTR lpszResult;
|
|
UINT nBytes;
|
|
|
|
if (lpszString == NULL)
|
|
return NULL;
|
|
|
|
#ifdef _WIN32
|
|
nBytes = (wcslen(lpszString) + 1) * 2;
|
|
#else
|
|
nBytes = lstrlen(lpszString) + 1; // Win 16 doesn't use any UNICODE
|
|
#endif
|
|
lpszResult = (LPSTR)CoTaskMemAlloc(nBytes);
|
|
|
|
if (lpszResult) {
|
|
#ifdef _WIN32
|
|
WideCharToMultiByte(CP_ACP, 0, lpszString, -1, lpszResult, nBytes, NULL, NULL);
|
|
#else
|
|
lstrcpy(lpszResult, lpszString);
|
|
#endif
|
|
}
|
|
|
|
return lpszResult;
|
|
}
|
|
|
|
// The caller must free the returned string using CoTaskMemFree. The
|
|
// returned string is an ANSI string
|
|
LPSTR
|
|
DLL_StringFromGUID(REFGUID rGuid)
|
|
{
|
|
#ifdef DLL_WIN32
|
|
OLECHAR szGuidID[80];
|
|
int iConvert = StringFromGUID2(rGuid, szGuidID, 80);
|
|
|
|
assert(iConvert > 0);
|
|
return iConvert > 0 ? AllocTaskAnsiString(szGuidID) : NULL;
|
|
#else
|
|
LPSTR lpszGuidID;
|
|
|
|
if (!SUCCEEDED(StringFromCLSID(rGuid, &lpszGuidID)))
|
|
return NULL;
|
|
|
|
return lpszGuidID;
|
|
#endif
|
|
}
|