Source code of Windows XP (NT5)
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#include "priv.h"
// Do not build this file if on Win9X or NT4
#ifndef DOWNLEVEL_PLATFORM
//============================================================================
// This file contains a bunch of Unicode/Ansi thunks to handle calling
// some internal functions that on Windows 95 the strings are Ansi,
// whereas the string on NT are unicode
//============================================================================
#define PFN_FIRSTTIME ((void *)-1)
// First undefine everything that we are intercepting as to not forward back to us...
#undef SHGetSpecialFolderPath
// Explicit prototype because only the A/W prototypes exist in the headers
STDAPI_(BOOL) SHGetSpecialFolderPath(HWND hwndOwner, LPTSTR lpszPath, int nFolder, BOOL fCreate);
typedef BOOL (WINAPI * PFNGETSPECIALFOLDERPATH)(HWND hwndOwner, LPTSTR pwszPath, int nFolder, BOOL fCreate);
BOOL _AorW_SHGetSpecialFolderPath(HWND hwndOwner, /*OUT*/ LPTSTR pszPath, int nFolder, BOOL fCreate)
{
// The classic shell exported a non-decorated SHGetSpecialFolderPath
// that took TCHAR parameters. The IE4 shell exported additional
// decorated versions. Try to use the explicit decorated versions if
// we can.
static PFNGETSPECIALFOLDERPATH s_pfn = PFN_FIRSTTIME;
*pszPath = 0;
if (PFN_FIRSTTIME == s_pfn)
{
HINSTANCE hinst = LoadLibraryA("SHELL32.DLL");
if (hinst)
{
#ifdef UNICODE
s_pfn = (PFNGETSPECIALFOLDERPATH)GetProcAddress(hinst, "SHGetSpecialFolderPathW");
#else
s_pfn = (PFNGETSPECIALFOLDERPATH)GetProcAddress(hinst, "SHGetSpecialFolderPathA");
#endif
}
else
s_pfn = NULL;
}
if (s_pfn)
{
return s_pfn(hwndOwner, pszPath, nFolder, fCreate);
}
else
{
return SHGetSpecialFolderPath(hwndOwner, pszPath, nFolder, fCreate);
}
}
#endif //DOWNLEVEL_PLATFORM