std::string s = fs::temp_directory_path().append(filename).string();
LPCBYTE str = reinterpret_cast<LPCBYTE>(s.c_str()),
RegSetValueExA的实战示例:
// using std::string...
HKEY newValue;
// don't use RegOpenKey()! It is provided only for backwards compatibility with 16bit apps...
if (RegOpenKeyExA(HKEY_CURRENT_USER, "Software\Microsoft\Windows\CurrentVersion\Run", 0, KEY_SET_VALUE, &newValue) == 0)
{
// this may lose data for non-ASCII characters!
std::string s = fs::temp_directory_path().append(filename).string();
// this will convert the ANSI string to Unicode for you...
RegSetValueExA(newValue, "myprogram", 0, REG_SZ, reinterpret_cast<LPCBYTE>(s.c_str()), s.size()+1);
RegCloseKey(newValue);
}
return 0;
// using std::wstring...
HKEY newValue;
// don't use RegOpenKey()! It is provided only for backwards compatibility with 16bit apps...
if (RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\Microsoft\Windows\CurrentVersion\Run", 0, KEY_SET_VALUE, &newValue) == 0)
{
// no data loss here!
std::wstring s = fs::temp_directory_path().append(filename).wstring();
// no ANSI->Unicode conversion is performed here...
RegSetValueExW(newValue, L"myprogram", 0, REG_SZ, reinterpret_cast<LPCBYTE>(s.c_str()), (s.size()+1) * sizeof(WCHAR));
RegCloseKey(newValue);
}
return 0;