reactos/base/applications/mmc/misc.c

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/*
* ReactOS Management Console
* Copyright (C) 2006 - 2007 Thomas Weidenmueller
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "precomp.h"
INT
LengthOfStrResource(IN HINSTANCE hInst,
IN UINT uID)
{
HRSRC hrSrc;
HGLOBAL hRes;
LPWSTR lpName, lpStr;
if (hInst == NULL)
{
return -1;
}
/* There are always blocks of 16 strings */
lpName = (LPWSTR)MAKEINTRESOURCE((uID >> 4) + 1);
/* Find the string table block */
if ((hrSrc = FindResourceW(hInst, lpName, (LPWSTR)RT_STRING)) &&
(hRes = LoadResource(hInst, hrSrc)) &&
(lpStr = LockResource(hRes)))
{
UINT x;
/* Find the string we're looking for */
uID &= 0xF; /* position in the block, same as % 16 */
for (x = 0; x < uID; x++)
{
lpStr += (*lpStr) + 1;
}
/* Found the string */
return (int)(*lpStr);
}
return -1;
}
INT
AllocAndLoadString(OUT LPTSTR *lpTarget,
IN HINSTANCE hInst,
IN UINT uID)
{
INT ln;
ln = LengthOfStrResource(hInst,
uID);
if (ln++ > 0)
{
(*lpTarget) = (LPWSTR)LocalAlloc(LMEM_FIXED,
ln * sizeof(TCHAR));
if ((*lpTarget) != NULL)
{
INT Ret;
if (!(Ret = LoadString(hInst, uID, *lpTarget, ln)))
{
LocalFree((HLOCAL)(*lpTarget));
}
return Ret;
}
}
return 0;
}
DWORD
LoadAndFormatString(IN HINSTANCE hInstance,
IN UINT uID,
OUT LPTSTR *lpTarget,
...)
{
DWORD Ret = 0;
LPWSTR lpFormat;
va_list lArgs;
if (AllocAndLoadString(&lpFormat,
hInstance,
uID) != 0)
{
va_start(lArgs, lpTarget);
/* let's use FormatMessage to format it because it has the ability to allocate
memory automatically */
Ret = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_STRING,
lpFormat,
0,
0,
(LPTSTR)lpTarget,
0,
&lArgs);
va_end(lArgs);
LocalFree((HLOCAL)lpFormat);
}
return Ret;
}