FString I_GetLongPathName(FString shortpath)
{
static TOptWin32Proc<DWORD (WINAPI*)(LPCTSTR, LPTSTR, DWORD)>
GetLongPathNameA("kernel32.dll", "GetLongPathNameA");
// Doesn't exist on NT4
if (GetLongPathName == NULL)
return shortpath;
DWORD buffsize = GetLongPathNameA.Call(shortpath.GetChars(), NULL, 0);
if (buffsize == 0)
{ // nothing to change (it doesn't exist, maybe?)
return shortpath;
}
TCHAR *buff = new TCHAR[buffsize];
DWORD buffsize2 = GetLongPathNameA.Call(shortpath.GetChars(), buff, buffsize);
if (buffsize2 >= buffsize)
{ // Failure! Just return the short path
delete[] buff;
return shortpath;
}
FString longpath(buff, buffsize2);
delete[] buff;
return longpath;
}
bool GetKnownFolder(int shell_folder, REFKNOWNFOLDERID known_folder, bool create, FString &path)
{
static TOptWin32Proc<GKFP> SHGetKnownFolderPath("shell32.dll", "SHGetKnownFolderPath");
char pathstr[MAX_PATH];
// SHGetKnownFolderPath knows about more folders than SHGetFolderPath, but is
// new to Vista, hence the reason we support both.
if (SHGetKnownFolderPath == NULL)
{
static TOptWin32Proc<HRESULT(WINAPI*)(HWND, int, HANDLE, DWORD, LPTSTR)>
SHGetFolderPathA("shell32.dll", "SHGetFolderPathA");
// NT4 doesn't even have this function.
if (SHGetFolderPathA == NULL)
return false;
if (shell_folder < 0)
{ // Not supported by SHGetFolderPath
return false;
}
if (create)
{
shell_folder |= CSIDL_FLAG_CREATE;
}
if (FAILED(SHGetFolderPathA.Call(NULL, shell_folder, NULL, 0, pathstr)))
{
return false;
}
path = pathstr;
return true;
}
else
{
PWSTR wpath;
if (FAILED(SHGetKnownFolderPath.Call(known_folder, create ? KF_FLAG_CREATE : 0, NULL, &wpath)))
{
return false;
}
// FIXME: Support Unicode, at least for filenames. This function
// has no MBCS equivalent, so we have to convert it since we don't
// support Unicode. :(
bool converted = false;
if (WideCharToMultiByte(GetACP(), WC_NO_BEST_FIT_CHARS, wpath, -1,
pathstr, countof(pathstr), NULL, NULL) > 0)
{
path = pathstr;
converted = true;
}
CoTaskMemFree(wpath);
return converted;
}
}
