Refactor plugin third-party layout to UE standard

Plugin was non-autonomous: Build.cs referenced ../../../../Dependencies
(SDK installed externally) and copied dpwin64.dll into the project's
Binaries at build time, requiring manual DLL placement. Migrate to the
canonical UE third-party pattern so the plugin self-contains everything
and UBT handles staging.

- Embed minimal SDK files inside the plugin: dris.h, dpwin64.lib in
  Source/ThirdParty/DinkeyPro/, dpwin64.dll in Binaries/ThirdParty/DinkeyPro/Win64/.
- Switch from runtime GetProcAddress to import-lib delay-load (better
  protection: calls go through PE import table instead of named lookup).
- Load DLL via IPluginManager::FindPlugin()->GetBaseDir() — no more
  ProjectDir-based path, no more manual File.Copy in Build.cs.
- Drop Win32 dead code; plugin is Win64-only per the .uplugin whitelist.
- Update .gitignore to keep Binaries/ThirdParty/ tracked while ignoring
  build artifacts under Binaries/Win64/.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -1,8 +1,11 @@
+# Unreal generated / per-machine
 Unreal/PS_Dinkey/.vs/
-Unreal/PS_Dinkey/Binaries/Win64/PS_DinkeyEditor.target
 Unreal/PS_Dinkey/Binaries/
+Unreal/PS_Dinkey/DerivedDataCache/
 Unreal/PS_Dinkey/Intermediate/
-Unreal/PS_Dinkey/Plugins/PS_Dinkey/Binaries/Win64/UE4Editor.modules
-Unreal/PS_Dinkey/Plugins/PS_Dinkey/Binaries/
-Unreal/PS_Dinkey/Plugins/PS_Dinkey/Intermediate/
 Unreal/PS_Dinkey/Saved/
+
+# Plugin generated — but keep Binaries/ThirdParty (DLLs shipped with the plugin)
+Unreal/PS_Dinkey/Plugins/PS_Dinkey/Binaries/*
+!Unreal/PS_Dinkey/Plugins/PS_Dinkey/Binaries/ThirdParty/
+Unreal/PS_Dinkey/Plugins/PS_Dinkey/Intermediate/

Unreal/PS_Dinkey/Plugins/PS_Dinkey/Source/DinkeyPlugin/Classes/Dinkey.h

@@ -8,26 +8,21 @@
 
 DECLARE_LOG_CATEGORY_EXTERN(LogDinkeyPlugin, Log, All);
 
-typedef struct DRIS;
-
 UCLASS()
 class UDinkey : public UObject
 {
 	GENERATED_UCLASS_BODY()
 
 public:
-#if DINKEY_DYNAMIC_LINKAGE
-	static void *dpWinDllHandle;
-	typedef int(*_DDProtCheck)(DRIS *dris, BYTE *data);
-	static _DDProtCheck DDProtCheck;
-
 	static void Initialize();
 	static void Finalize();
-#endif
+
 	UFUNCTION(BlueprintCallable, Category = "Dinkey")
 	static int ProtCheck();								// a standard protection check
 
 private:
+	static void* DpWinDllHandle;
+
 	static void random_set(void *buffer, int length);
 	static void DisplayError(int ret_code, int extended_error);
 };

Unreal/PS_Dinkey/Plugins/PS_Dinkey/Source/DinkeyPlugin/DinkeyPlugin.Build.cs

@@ -1,107 +1,37 @@
 // Copyright 2017 Polymorph. All Rights Reserved.
-#define DYNAMIC_LINKAGE
 
 using System.IO;
 using UnrealBuildTool;
 
 public class DinkeyPlugin : ModuleRules
 {
-	private string ModulePath { get { return ModuleDirectory; } }
-	private string ThirdPartyPath { get { return Path.GetFullPath(Path.Combine(ModulePath, "../../../../Dependencies")); } }
-
 	public DinkeyPlugin(ReadOnlyTargetRules Target) : base(Target)
 	{
-	
-		
-		PublicDependencyModuleNames.AddRange(
-			new string[]
-			{
-				"Core",
-				// ... add other public dependencies that you statically link with here ...
-			}
-			);
-			
-		
-		PrivateDependencyModuleNames.AddRange(
-			new string[]
-			{
-				"CoreUObject",
-				"Engine",
-				"Slate",
-				"SlateCore",
-				// ... add private dependencies that you statically link with here ...	
-			}
-			);
-		
-		
-		DynamicallyLoadedModuleNames.AddRange(
-			new string[]
-			{
-				// ... add any modules that your module loads dynamically here ...
-			}
-			);
+		PublicDependencyModuleNames.AddRange(new string[]
+		{
+			"Core",
+			"Projects",
+		});
 
-#if DYNAMIC_LINKAGE
-		PublicDefinitions.Add("DINKEY_DYNAMIC_LINKAGE=1");
-#endif
-		// Dinkey dependencies
-		string dinkeyPlatformString = (Target.Platform == UnrealTargetPlatform.Win64 ? "64" : "32");
-		//string dinkeySDKPath = Path.Combine(ThirdPartyPath, "DinkeyPro/Dinkey Pro 7.2.0/Samples/C");
-		string dinkeySDKPath = Path.Combine(ThirdPartyPath, "DinkeyPro/Dinkey Pro 7.6.1/Samples/C");
+		PrivateDependencyModuleNames.AddRange(new string[]
+		{
+			"CoreUObject",
+			"Engine",
+			"Slate",
+			"SlateCore",
+		});
 
-		// Compile/Link dependencies
-		PublicIncludePaths.Add(dinkeySDKPath);
-#if DYNAMIC_LINKAGE
-		string dpwinDLLName = string.Format("dpwin{0}.dll", dinkeyPlatformString);
-		//string dinkeyDLLsPath = Path.Combine(ThirdPartyPath, string.Format("DinkeyPro/Dinkey Pro 7.2.0/Modules/{0}bit", dinkeyPlatformString));
-		//string dinkeyDLLsPath = Path.Combine(ThirdPartyPath, string.Format("DinkeyPro/Dinkey Pro 7.6.1/Modules/{0}bit", dinkeyPlatformString));
-		//string dpwinDLLPath = Path.Combine(dinkeyDLLsPath, dpwinDLLName);
-		// Runtime dependencies (DLLs)
-		PublicDelayLoadDLLs.Add(dpwinDLLName);
+		if (Target.Platform == UnrealTargetPlatform.Win64)
+		{
+			string ThirdPartyDir = Path.Combine(PluginDirectory, "Source", "ThirdParty", "DinkeyPro");
 
-		//		RuntimeDependencies.Add(string.Format("$(EngineDir)/Binaries/ThirdParty/DinkeyPro/Win{0}/{1}", dinkeyPlatformString, dpwinDLLName));
+			PublicSystemIncludePaths.Add(Path.Combine(ThirdPartyDir, "Include"));
+			PublicAdditionalLibraries.Add(Path.Combine(ThirdPartyDir, "Lib", "Win64", "dpwin64.lib"));
 
-		if (Target.Type == TargetRules.TargetType.Editor) {
-			string srcPath = Path.Combine(ModulePath, "../../ThirdParty/Win64/dpwin64.dll");
-			string destPath = Path.Combine(ModulePath, "../../../../Binaries/Win64/dpwin64.dll");
-
-			// Only copy if destination is missing or source is newer
-			bool needCopy = !File.Exists(destPath);
-			if (!needCopy)
-			{
-				var srcInfo = new FileInfo(srcPath);
-				var destInfo = new FileInfo(destPath);
-				needCopy = srcInfo.LastWriteTimeUtc > destInfo.LastWriteTimeUtc
-						|| srcInfo.Length != destInfo.Length;
-			}
-
-			if (needCopy)
-			{
-				try
-				{
-					File.Copy(srcPath, destPath, true);
-				}
-				catch (IOException)
-				{
-					// DLL is locked by a running process (e.g. editor during Live Coding) — skip copy.
-					// The existing DLL is already in place and will be used as-is.
-					System.Console.WriteLine("DinkeyPlugin: Could not copy dpwin64.dll (file locked). Using existing copy.");
-				}
-			}
+			PublicDelayLoadDLLs.Add("dpwin64.dll");
+			RuntimeDependencies.Add(
+				Path.Combine(PluginDirectory, "Binaries", "ThirdParty", "DinkeyPro", "Win64", "dpwin64.dll"),
+				StagedFileType.NonUFS);
 		}
-
-		RuntimeDependencies.Add(string.Format("$(ProjectDir)/Binaries/Win{0}/{1}", dinkeyPlatformString, dpwinDLLName));
-
-
-		/*		if (Target.Type == TargetRules.TargetType.Editor) {
-					// Copy DLLs into Project Binaries Engine folders
-					string dinkeyUnrealEngineThirdPartyPath = Path.Combine(Target.RelativeEnginePath, string.Format("Binaries/ThirdParty/DinkeyPro/Win{0}", dinkeyPlatformString));
-					Directory.CreateDirectory(dinkeyUnrealEngineThirdPartyPath);
-					File.Copy(string.Format("$(ProjectDir)/Binaries/Win{0}/{1}", dinkeyPlatformString, dpwinDLLName), Path.Combine(dinkeyUnrealEngineThirdPartyPath, dpwinDLLName), true);
-				}*/
-#else
-//		PublicAdditionalLibraries.Add(Path.Combine(dinkeySDKPath, string.Format("import_libs/dpwin{0}{1}.lib", dinkeyPlatformString, dinkeyConfigurationString)));
-		PublicAdditionalLibraries.Add(Path.Combine(dinkeySDKPath, string.Format("object_modules/dpwin{0}.obj", dinkeyPlatformString)));
-#endif
 	}
 }

Unreal/PS_Dinkey/Plugins/PS_Dinkey/Source/DinkeyPlugin/Private/Dinkey.cpp

@@ -1,57 +1,52 @@
 // Copyright 2017 Polymorph. All Rights Reserved.
 
 #include "Dinkey.h"
+#include "Interfaces/IPluginManager.h"
+#include "Misc/Paths.h"
+
+#include "dris.h"									// for DRIS definition + DDProtCheck declaration
 
 DEFINE_LOG_CATEGORY(LogDinkeyPlugin);
 
-#include "dris.h"									// for DRIS definition
-
 #define DISABLE_PROTECTION 0
 
 #define ASTERION_PS		13290
 #define MY_PRODCODE     "PROSERVE"					// Dongle Product Code
 
-#ifdef DINKEY_DYNAMIC_LINKAGE
-void *UDinkey::dpWinDllHandle = NULL;
-UDinkey::_DDProtCheck UDinkey::DDProtCheck = NULL;
+void* UDinkey::DpWinDllHandle = nullptr;
 
 void UDinkey::Initialize() {
 	UE_LOG(LogDinkeyPlugin, Log, TEXT("UDinkey::Initialize()"));
 
-	// Load the Dinkey dynamic library
-#if PLATFORM_64BITS
-	FString Platform = TEXT("64");
-#else
-	FString Platform = TEXT("32");
-#endif
-	//FString dpwinDLLFilename = FPaths::EngineDir() / FString::Printf(TEXT("Binaries/ThirdParty/DinkeyPro/Win%s/dpwin%s.dll"), *Platform, *Platform);
-	FString dpwinDLLFilename = FPaths::ProjectDir() / FString::Printf(TEXT("Binaries/Win%s/dpwin%s.dll"), *Platform, *Platform);
-
-	if (FPaths::FileExists(dpwinDLLFilename)) {
-		dpWinDllHandle = FPlatformProcess::GetDllHandle(*dpwinDLLFilename);
+	const TSharedPtr<IPlugin> Plugin = IPluginManager::Get().FindPlugin(TEXT("DinkeyPlugin"));
+	if (!Plugin.IsValid()) {
+		UE_LOG(LogDinkeyPlugin, Fatal, TEXT("DinkeyPlugin not found by IPluginManager"));
+		return;
 	}
 
-	if (dpWinDllHandle != NULL) {
-		DDProtCheck = NULL;
-		DDProtCheck = (_DDProtCheck)FPlatformProcess::GetDllExport(dpWinDllHandle, TEXT("DDProtCheck"));
+	const FString DllPath = FPaths::Combine(
+		Plugin->GetBaseDir(),
+		TEXT("Binaries/ThirdParty/DinkeyPro/Win64/dpwin64.dll"));
+
+	if (!FPaths::FileExists(DllPath)) {
+		UE_LOG(LogDinkeyPlugin, Fatal, TEXT("Dinkey DLL not found at: %s"), *DllPath);
+		return;
 	}
 
-	if (dpWinDllHandle == NULL || DDProtCheck == NULL) {
-		UE_LOG(LogDinkeyPlugin, Fatal, TEXT("Unable to load Dinkey Library : "));
+	DpWinDllHandle = FPlatformProcess::GetDllHandle(*DllPath);
+	if (DpWinDllHandle == nullptr) {
+		UE_LOG(LogDinkeyPlugin, Fatal, TEXT("Failed to load Dinkey DLL: %s"), *DllPath);
 	}
 }
 
 void UDinkey::Finalize() {
 	UE_LOG(LogDinkeyPlugin, Log, TEXT("UDinkey::Finalize()"));
 
-	// Unload the Dinkey dynamic library
-	if (dpWinDllHandle != NULL) {
-		DDProtCheck = NULL;
-		FPlatformProcess::FreeDllHandle(dpWinDllHandle);
-		dpWinDllHandle = NULL;
+	if (DpWinDllHandle != nullptr) {
+		FPlatformProcess::FreeDllHandle(DpWinDllHandle);
+		DpWinDllHandle = nullptr;
 	}
 }
-#endif
 
 UDinkey::UDinkey(const FObjectInitializer& ObjectInitializer)
 	: Super(ObjectInitializer) {
@@ -69,16 +64,15 @@ int UDinkey::ProtCheck() {
 	dris.function = PROTECTION_CHECK;					// standard protection check
 	dris.flags = 0;										// no extra flags, but you may want to specify some if you want to start a network user or decrement execs,...
 
-#ifdef DINKEY_DYNAMIC_LINKAGE
-	if (DDProtCheck == NULL) {
-		UE_LOG(LogDinkeyPlugin, Error, TEXT("Dinkey library not correctly loaded !"));
+	if (DpWinDllHandle == nullptr) {
+		UE_LOG(LogDinkeyPlugin, Error, TEXT("Dinkey library not loaded!"));
 #if DISABLE_PROTECTION || WITH_EDITOR
 		return 0;
 #else
 		return -1;
 #endif
 	}
-#endif
+
 	ret_code = DDProtCheck(&dris, NULL);
 
 	if (ret_code != 0) {

Unreal/PS_Dinkey/Plugins/PS_Dinkey/Source/ThirdParty/DinkeyPro/Include/dris.h

@@ -0,0 +1,101 @@
+// dris.h
+// Dinkey Runtime Information Structure (DRIS)
+// !! this file should not be modified
+
+#pragma pack(1)
+
+typedef struct DRIS {
+    // the first 4 fields are never encrypted
+    char header[4];                 // should be set to DRIS
+    // inputs
+    int size;                       // size of this structure
+    int seed1;                      // seed for data/dris encryption
+    int seed2;                      // as above
+    // (maybe encrypted from now on)
+    int function;                   // specify only one function
+    int flags;                      // options for the function selected. To use more than one OR them together: OPTION1 | OPTION2...
+    unsigned int execs_decrement;   // amount by which to dec execs if we use flag: DEC_MANY_EXECS
+    int data_crypt_key_num;         // number of the key (1-3) that the dongle uses to encrypt or decrypt user data
+    int rw_offset;                  // offset in the dongle data area to read or write data
+    int rw_length;                  // length of data are to read/write/encrypt/decrypt
+    char *rw_data_ptr;              // pointer to data to write / be read
+    char alt_licence_name[256];     // protection check for different licence instead of the default one, must be null-terminated
+    int var_a;                      // variable values for user algorithm
+    int var_b;
+    int var_c;
+    int var_d;
+    int var_e;
+    int var_f;
+    int var_g;
+    int var_h;
+    int alg_number;                 // the number of the user algorithm that you want to execute
+
+    // outputs
+    int ret_code;                   // return code from the protection check
+    int ext_err;                    // extended error
+    int type;                       // type of dongle detected. 1 = Pro, 2 = FD
+    int model;                      // model of dongle detected. 1 = Lite, 2 = Plus, 4 = Net 5, 7 = Net Unlimited
+    int sdsn;                       // Software Developer's Serial Number
+    char prodcode[12];              // Product Code (null-terminated)
+    unsigned int dongle_number;
+    int update_number;
+    unsigned int data_area_size;    // size of the data area used in the dongle detected
+    int max_alg_num;                // the maximum algorithm number in the dongle detected
+    int execs;                      // executions left: -1 indicates 'no limit'
+    int exp_day;                    // expiry day: -1 indicates 'no limit'
+    int exp_month;                  // expiry month: -1 indicates 'no limit'
+    int exp_year;                   // expiry year: -1 indicates 'no limit'
+    unsigned int features;          // features value 
+    int net_users;                  // maximum number of network users for the dongle detected: -1 indicates 'no limit'
+    int alg_answer;                 // answer to the user algorithm executed with the given variable values
+    unsigned int fd_capacity;       // capacity of the data area in FD dongle.
+    char fd_drive[128];             // drive letter of FD dongle detected e.g. 'f:\' (or mount name under Linux)
+    int swkey_type;                 // 0 = no swkey detected, 1 = temporary software key, 2 = demo software key
+    int swkey_exp_day;              // software key expiry date (if software key detected)
+    int swkey_exp_month;            
+    int swkey_exp_year;             
+} DRIS;
+
+typedef struct NU_INFO {
+    char licenceName[256];
+    char userName[50];
+    char computerName[256];
+    char ipAddress[16];
+} NU_INFO;
+
+#pragma pack()
+
+// functions - must specify only one
+#define PROTECTION_CHECK        1       // checks for dongle, check program params...
+#define EXECUTE_ALGORITHM       2       // protection check + calculate answer for specified algorithm with specified inputs
+#define WRITE_DATA_AREA         3       // protection check + writes dongle data area
+#define READ_DATA_AREA          4       // protection check + reads dongle data area
+#define ENCRYPT_USER_DATA       5       // protection check + the dongle will encrypt user data
+#define DECRYPT_USER_DATA       6       // protection check + the dongle will decrypt user data
+#define FAST_PRESENCE_CHECK     7       // checks for the presence of the correct dongle only with minimal security, no flags allowed.
+#define STOP_NET_USER           8       // stops a network user (a protection check is NOT performed)
+
+// flags - can specify as many as you like
+#define DEC_ONE_EXEC             1      // decrement execs by 1 
+#define DEC_MANY_EXECS           2      // decrement execs by number specified in execs_decrement
+#define START_NET_USER           4      // starts a network user
+#define USE_FUNCTION_ARGUMENT    16     // use the extra argument in the function for pointers
+#define CHECK_LOCAL_FIRST        32     // always look in local ports before looking in network ports
+#define CHECK_NETWORK_FIRST      64     // always look on the network before looking in local ports
+#define USE_ALT_LICENCE_NAME     128    // use name specified in alt_licence_name instead of the default one
+#define DONT_SET_MAXDAYS_EXPIRY  256    // if the max days expiry date has not been calculated then do not do it this time
+#define MATCH_DONGLE_NUMBER      512    // restrict the search to match the dongle number specified in the DRIS
+#define DONT_RETURN_FD_DRIVE     1024   // if an FD dongle has been detected then don't return the flash drive/mount name in the DRIS  
+
+
+// Runtime module API declarations
+#ifdef __cplusplus
+	extern "C" {
+#endif
+
+int WINAPI DDProtCheck(DRIS *dris, unsigned char *data);
+int WINAPI DDGetNetUserList(char *licence_name, int *num_net_users, NU_INFO *nu_info, int num_info_structs, int *extended_error);
+
+#ifdef __cplusplus
+}
+#endif