Adding to the registry in C++ win32 - c++

Question

I have a batch file that has this line..
REG ADD "HKCU\Software\Google\Chrome\NativeMessagingHosts\SomeName" /ve /t REG_SZ /d "/path/to/SomeName.json" /f
I want to do the same from a c++ code. I found the function RegCreateKeyExA and I am using it like this
HKEY hKey;
LPCSTR sk = "Software\Google\Chrome\NativeMessagingHosts\SomeName";
LONG openRes = RegCreateKeyExA(
HKEY_CURRENT_USER,
sk,
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hKey,
NULL);
but how to add the data part? /ve /t REG_SZ /d "/path/to/SomeName.json" /f
UPDATE:
based on #Alan Britles comment I did the following:
HKEY hKey;
LONG openRes = RegCreateKeyExA(
HKEY_CURRENT_USER,
"HKCU\\Software\\Google\\Chrome\\NativeMessagingHosts\\SomeName",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hKey,
NULL);
if (openRes == ERROR_SUCCESS) {
log+="Success creating key.";
}
else {
log += "Error creating key.";
}
LPCSTR value = NULL;
std::string temp = QString(data_path + "\\SomeName.json").toStdString();
LPCSTR data = temp.c_str()+'\0';
LONG setRes = RegSetValueExA(hKey, value, 0, REG_SZ, (LPBYTE)data, strlen(data) + 1);
if (setRes == ERROR_SUCCESS) {
log+="Success writing to Registry.";
}
else {
log += "Error writing to Registry.";
}
I get success Writing but I don't see it added in the registry editor... What am I doing wrong?
Update #2:
I got rid of HKCU in the sub key..
LONG openRes = RegCreateKeyExA(
HKEY_CURRENT_USER,
"Software\\Google\\Chrome\\NativeMessagingHosts\\SomeName",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL,
&hKey,
NULL);
But I still get success returns and nothing added to the registry.. Is it a problem related to permissions? Or am I calling the wrong functions?