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shell32: Implement DoEnvironmentSubstW.

This commit is contained in:
Detlef Riekenberg 2012-12-04 11:38:00 +01:00 committed by Alexandre Julliard
parent 1cf2c9c179
commit ff2f494195
1 changed files with 37 additions and 4 deletions
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41
dlls/shell32/shellord.c
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@ -1626,14 +1626,47 @@ DWORD WINAPI DoEnvironmentSubstA(LPSTR pszString, UINT cchString)
}
/************************************************************************
* DoEnvironmentSubstW [SHELL32.@]
* DoEnvironmentSubstW [SHELL32.@]
*
* See DoEnvironmentSubstA.
* Replace all %KEYWORD% in the string with the value of the named
* environment variable. If the buffer is too small, the string is not modified.
*
* PARAMS
* pszString [I] '\0' terminated string with %keyword%.
* [O] '\0' terminated string with %keyword% substituted.
* cchString [I] size of str.
*
* RETURNS
* Success: The string in the buffer is updated
* HIWORD: TRUE
* LOWORD: characters used in the buffer, including space for the terminating 0
* Failure: buffer too small. The string is not modified.
* HIWORD: FALSE
* LOWORD: provided size of the buffer in characters
*/
DWORD WINAPI DoEnvironmentSubstW(LPWSTR pszString, UINT cchString)
{
FIXME("(%s, %d): stub\n", debugstr_w(pszString), cchString);
return MAKELONG(FALSE,cchString);
LPWSTR dst;
BOOL res = FALSE;
DWORD len = cchString;
TRACE("(%s, %d)\n", debugstr_w(pszString), cchString);
if ((cchString < MAXLONG) && (dst = HeapAlloc(GetProcessHeap(), 0, cchString * sizeof(WCHAR))))
{
len = ExpandEnvironmentStringsW(pszString, dst, cchString);
/* len includes the terminating 0 */
if (len && len <= cchString)
{
res = TRUE;
memcpy(pszString, dst, len * sizeof(WCHAR));
}
else
len = cchString;
HeapFree(GetProcessHeap(), 0, dst);
}
return MAKELONG(len, res);
}
/************************************************************************