reactos/modules/rosapps/applications/devutils/vgafontedit/misc.c

115 lines
2.7 KiB
C

/*
* PROJECT: ReactOS VGA Font Editor
* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
* PURPOSE: Some miscellaneous resource functions
* COPYRIGHT: Copyright 2006-2007 Thomas Weidenmueller (thomas@reactsoft.com)
* Copyright 2008 Colin Finck (colin@reactos.org)
*/
#include "precomp.h"
static INT
LengthOfStrResource(IN UINT uID)
{
HRSRC hrSrc;
HGLOBAL hRes;
LPWSTR lpName, lpStr;
/* There are always blocks of 16 strings */
lpName = (LPWSTR)MAKEINTRESOURCEW((uID >> 4) + 1);
/* Find the string table block */
if ((hrSrc = FindResourceW(hInstance, lpName, (LPWSTR)RT_STRING)) &&
(hRes = LoadResource(hInstance, 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 LPWSTR *lpTarget,
IN UINT uID)
{
INT ln;
ln = LengthOfStrResource(uID);
if (ln++ > 0)
{
(*lpTarget) = (LPWSTR)LocalAlloc(LMEM_FIXED,
ln * sizeof(WCHAR));
if ((*lpTarget) != NULL)
{
INT Ret;
if (!(Ret = LoadStringW(hInstance, uID, *lpTarget, ln)))
{
LocalFree((HLOCAL)(*lpTarget));
}
return Ret;
}
}
return 0;
}
static DWORD
VarListLoadAndFormatString(IN UINT uID, OUT PWSTR *lpTarget, IN va_list* Args)
{
DWORD Ret = 0;
PWSTR lpFormat;
if (AllocAndLoadString(&lpFormat, uID) > 0)
{
/* let's use FormatMessage to format it because it has the ability to allocate
memory automatically */
Ret = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_STRING,
lpFormat,
0,
0,
(LPWSTR)lpTarget,
0,
Args);
HeapFree(hProcessHeap, 0, lpFormat);
}
return Ret;
}
DWORD
LoadAndFormatString(IN UINT uID, OUT PWSTR *lpTarget, ...)
{
DWORD Ret;
va_list Args;
va_start(Args, lpTarget);
Ret = VarListLoadAndFormatString(uID, lpTarget, &Args);
va_end(Args);
return Ret;
}
VOID
LocalizedError(IN UINT uID, ...)
{
PWSTR pszError;
va_list Args;
va_start(Args, uID);
VarListLoadAndFormatString(uID, &pszError, &Args);
va_end(Args);
MessageBoxW(NULL, pszError, szAppName, MB_ICONERROR);
HeapFree(hProcessHeap, 0, pszError);
}