Unable to write to serial COM port - c++

Question

I'm trying to write to a com port that my Arduino micro is plugged into. All its doing is trying to send an int at a time. I have the serial monitor open in Arduino bound to that port and I'm able to send bytes to it (I have a print line to show its receiving bytes) but when I use the CPP impl - I get nothing. I'm new to this so may have missed something out but I dont even get any errors.
Any help?
`
Arduino::~Arduino()
{
CloseHandle(hSerial);
}
void Arduino::send(int x, int y, int a)
{
std::cout << "Sending these values = " << x << y << a << std::endl;
if (!WriteFile(hSerial, &x, 1, NULL, NULL)) {
DWORD lastError = GetLastError();
std::cout << "ERROR HERE SENDING X! = " << lastError << std::endl;
}
else {
std::cout << "Sent X" << std::endl;
}
if (!WriteFile(hSerial, &y, 1, NULL, NULL)) {
DWORD lastError = GetLastError();
std::cout << "ERROR HERE SENDING Y! = " << lastError << std::endl;
}
else {
std::cout << "Sent Y" << std::endl;
}
if (!WriteFile(hSerial, &a, 1, NULL, NULL)) {
DWORD lastError = GetLastError();
std::cout << "ERROR HERE SENDING A! = " << lastError << std::endl;
}
else {
std::cout << "Sent A" << std::endl;
}
}
void Arduino::mouseEvent(int x, int y, int click)
{
send(x, y, click);
}
void Arduino::Init(std::wstring comport)
{
hSerial = CreateFile(comport.c_str(), GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hSerial == INVALID_HANDLE_VALUE)
{
DWORD lastError = GetLastError();
std::cout << "ERROR HERE! = " << lastError << std::endl;
}
DCB dcbSerialParams = { 0 };
dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
GetCommState(hSerial, &dcbSerialParams);
dcbSerialParams.BaudRate = CBR_115200;
dcbSerialParams.ByteSize = 8;
dcbSerialParams.StopBits = ONESTOPBIT;
dcbSerialParams.Parity = NOPARITY;
SetCommState(hSerial, &dcbSerialParams);
}
`
I'm expecting, at the very least, to get a println in my Arduino IDE to say that the board has received bytes when I hit the .Send() but I get nothing. I know the Arduino code works fine as I'm able to use the IDE to send bytes to decode then perform operations on.