updated source with function library to get all ports and init serial com + visual updates

Unreal/Source/SPIE_Avatar/SerialPortLibrary.cpp

@@ -0,0 +1,96 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "SerialPortLibrary.h"
+
+#if PLATFORM_WINDOWS
+#include "Windows/AllowWindowsPlatformTypes.h"
+#include <windows.h>
+#include <setupapi.h>
+#include "Windows/HideWindowsPlatformTypes.h"
+
+#pragma comment(lib, "setupapi.lib")
+#endif
+
+TArray<FString> USerialPortLibrary::GetAvailableSerialPorts()
+{
+    TArray<FString> Ports;
+
+#if PLATFORM_WINDOWS
+    // Query registry for all COM ports
+    HKEY hKey;
+    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("HARDWARE\\DEVICEMAP\\SERIALCOMM"),
+        0, KEY_READ, &hKey) == ERROR_SUCCESS)
+    {
+        DWORD Index = 0;
+        TCHAR ValueName[256];
+        TCHAR ValueData[256];
+        DWORD ValueNameSize = 256;
+        DWORD ValueDataSize = 256 * sizeof(TCHAR);
+        DWORD Type;
+
+        while (RegEnumValue(hKey, Index++, ValueName, &ValueNameSize,
+            nullptr, &Type, (LPBYTE)ValueData, &ValueDataSize) == ERROR_SUCCESS)
+        {
+            Ports.Add(FString(ValueData));
+            ValueNameSize = 256;
+            ValueDataSize = 256 * sizeof(TCHAR);
+        }
+        RegCloseKey(hKey);
+    }
+#endif
+
+    return Ports;
+}
+
+TArray<FString> USerialPortLibrary::GetAvailableSerialPortsWithNames()
+{
+    TArray<FString> Ports;
+
+#if PLATFORM_WINDOWS
+    // Use SetupAPI to get port + friendly device name
+    HDEVINFO DeviceInfoSet = SetupDiGetClassDevs(
+        nullptr, TEXT("USB"), nullptr,
+        DIGCF_PRESENT | DIGCF_ALLCLASSES
+    );
+
+    if (DeviceInfoSet == INVALID_HANDLE_VALUE)
+        return Ports;
+
+    SP_DEVINFO_DATA DeviceInfoData;
+    DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
+
+    for (DWORD i = 0; SetupDiEnumDeviceInfo(DeviceInfoSet, i, &DeviceInfoData); i++)
+    {
+        TCHAR FriendlyName[256] = {};
+        TCHAR PortName[256] = {};
+
+        // Get friendly name (e.g. "Arduino Uno (COM3)")
+        SetupDiGetDeviceRegistryProperty(DeviceInfoSet, &DeviceInfoData,
+            SPDRP_FRIENDLYNAME, nullptr, (PBYTE)FriendlyName, sizeof(FriendlyName), nullptr);
+
+        // Get COM port from device registry key
+        HKEY DevKey = SetupDiOpenDevRegKey(DeviceInfoSet, &DeviceInfoData,
+            DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);
+
+        if (DevKey != INVALID_HANDLE_VALUE)
+        {
+            DWORD PortNameSize = sizeof(PortName);
+            RegQueryValueEx(DevKey, TEXT("PortName"), nullptr,
+                nullptr, (LPBYTE)PortName, &PortNameSize);
+            RegCloseKey(DevKey);
+
+            if (wcslen(PortName) > 0 && wcslen(FriendlyName) > 0)
+            {
+                // Format: "COM3|Arduino Uno (COM3)"
+                FString Entry = FString::Printf(TEXT("%s|%s"), PortName, FriendlyName);
+                Ports.Add(Entry);
+            }
+        }
+    }
+
+    SetupDiDestroyDeviceInfoList(DeviceInfoSet);
+#endif
+
+    return Ports;
+}

Unreal/Source/SPIE_Avatar/SerialPortLibrary.h

@@ -0,0 +1,15 @@
+#pragma once
+#include "CoreMinimal.h"
+#include "Kismet/BlueprintFunctionLibrary.h"
+#include "SerialPortLibrary.generated.h"
+
+UCLASS()
+class SPIE_AVATAR_API USerialPortLibrary : public UBlueprintFunctionLibrary
+{
+	GENERATED_BODY() 
+public:
+	UFUNCTION(BlueprintPure, Category = "Serial Port")
+	static TArray<FString> GetAvailableSerialPorts();
+	UFUNCTION(BlueprintPure, Category = "Serial Port")
+	static TArray<FString> GetAvailableSerialPortsWithNames();
+};