MFC 注册表操作

CRegKey reg;
HRESULT hr = reg.Open(HKEY_LOCAL_MACHINE,L"SOFTWARE\\Microsoft\\abc",KEY_READ|KEY_WRITE);//打开注册表路径
if (hr != ERROR_SUCCESS)
{
TRACE0("open reg wrong\n");
return;
}

DWORD dwHotKey;

hr = reg.QueryDWORDValue(L"dwTestKey",dwHotKey);//读dwTestKey值
if (hr != ERROR_SUCCESS)
{
TRACE0("read reg wrong\n");
return;
}
DWORD dwTest = 10;
hr = reg.SetDWORDValue(L"dwTest",dwTest); //创建并写入 dwTest = 10
if (hr != ERROR_SUCCESS)
{
TRACE0("write reg wrong\n");
return;
}