From 2d8de0369ce52977c75d4dae364ce88e21682f4d Mon Sep 17 00:00:00 2001
From: Norman Lansing <nlforgegames@gmail.com>
Date: Tue, 31 Mar 2026 08:15:28 -0400
Subject: [PATCH] Lesson 68 - JoinGame Callbacks

---
 .../Portal/WBP_JoinGame.uasset                | Bin 36260 -> 36240 bytes
 .../Private/UI/API/GameSessions/JoinGame.cpp  |   6 ++++++
 .../Private/UI/Portal/PortalManager.cpp       |   5 +++++
 .../UI/Portal/Signin/SignInOverlay.cpp        |  16 ++++++++++++++++
 .../Public/UI/API/GameSessions/JoinGame.h     |   2 ++
 .../Public/UI/Portal/PortalManager.h          |   9 +++++++++
 .../Public/UI/Portal/Signin/SignInOverlay.h   |   6 ++++++
 7 files changed, 44 insertions(+)

diff --git a/Content/DedicatedServers/Portal/WBP_JoinGame.uasset b/Content/DedicatedServers/Portal/WBP_JoinGame.uasset
index 6b98dde1399dd1ad4a2c70a28de70250b2a7b3e5..1fed06a1e7e2ab5129f6ebe15414b26b7fc73163 100644
GIT binary patch
delta 591
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delta 1330
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diff --git a/Source/DedicatedServers/Private/UI/API/GameSessions/JoinGame.cpp b/Source/DedicatedServers/Private/UI/API/GameSessions/JoinGame.cpp
index b606d3df..dbdfe37d 100644
--- a/Source/DedicatedServers/Private/UI/API/GameSessions/JoinGame.cpp
+++ b/Source/DedicatedServers/Private/UI/API/GameSessions/JoinGame.cpp
@@ -2,3 +2,9 @@
 
 
 #include "UI/API/GameSessions/JoinGame.h"
+#include "Components/TextBlock.h"
+
+void UJoinGame::SetStatusMessage(const FString& Message) const
+{
+	TextBlock_StatusMessage->SetText(FText::FromString(Message));
+}
diff --git a/Source/DedicatedServers/Private/UI/Portal/PortalManager.cpp b/Source/DedicatedServers/Private/UI/Portal/PortalManager.cpp
index 5723e91b..57d091a7 100644
--- a/Source/DedicatedServers/Private/UI/Portal/PortalManager.cpp
+++ b/Source/DedicatedServers/Private/UI/Portal/PortalManager.cpp
@@ -2,3 +2,8 @@
 
 
 #include "UI/Portal/PortalManager.h"
+
+void UPortalManager::JoinGameSession()
+{
+	BroadcastJoinGameSessionMessage.Broadcast(TEXT("Searching for Game Session..."));
+}
diff --git a/Source/DedicatedServers/Private/UI/Portal/Signin/SignInOverlay.cpp b/Source/DedicatedServers/Private/UI/Portal/Signin/SignInOverlay.cpp
index f7e446ce..a21b286c 100644
--- a/Source/DedicatedServers/Private/UI/Portal/Signin/SignInOverlay.cpp
+++ b/Source/DedicatedServers/Private/UI/Portal/Signin/SignInOverlay.cpp
@@ -13,4 +13,20 @@ void USignInOverlay::NativeConstruct()
 	
 	check(PortalManagerClass);
 	PortalManager = NewObject<UPortalManager>(PortalManagerClass);
+	
+	JoinGameWidget->Button_JoinGame->OnClicked.AddDynamic(this, &USignInOverlay::OnJoinGameButtonClicked);
+}
+
+void USignInOverlay::OnJoinGameButtonClicked()
+{
+	check (IsValid(PortalManager));
+	
+	PortalManager->BroadcastJoinGameSessionMessage.AddDynamic(this, &USignInOverlay::UpdateJoinGameStatusMessage);
+	PortalManager->JoinGameSession();
+	JoinGameWidget->Button_JoinGame->SetIsEnabled(false);
+}
+
+void USignInOverlay::UpdateJoinGameStatusMessage(const FString& StatusMessage)
+{
+	JoinGameWidget->SetStatusMessage(StatusMessage);
 }
diff --git a/Source/DedicatedServers/Public/UI/API/GameSessions/JoinGame.h b/Source/DedicatedServers/Public/UI/API/GameSessions/JoinGame.h
index b8db1ad0..188d7a88 100644
--- a/Source/DedicatedServers/Public/UI/API/GameSessions/JoinGame.h
+++ b/Source/DedicatedServers/Public/UI/API/GameSessions/JoinGame.h
@@ -24,4 +24,6 @@ public:
 	
 	UPROPERTY(meta = (BindWidget))
 	TObjectPtr<UTextBlock> TextBlock_StatusMessage;
+	
+	void SetStatusMessage(const FString& Message)  const;
 };
diff --git a/Source/DedicatedServers/Public/UI/Portal/PortalManager.h b/Source/DedicatedServers/Public/UI/Portal/PortalManager.h
index 549d2299..bc8767f3 100644
--- a/Source/DedicatedServers/Public/UI/Portal/PortalManager.h
+++ b/Source/DedicatedServers/Public/UI/Portal/PortalManager.h
@@ -6,6 +6,8 @@
 #include "UI/HTTP/HTTPRequestManager.h"
 #include "PortalManager.generated.h"
 
+DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FBroadcastJoinGameSessionMessage, const FString&, StatusMessage);
+
 /**
  * 
  */
@@ -13,4 +15,11 @@ UCLASS()
 class DEDICATEDSERVERS_API UPortalManager : public UHTTPRequestManager
 {
 	GENERATED_BODY()
+	
+public:
+	
+	UPROPERTY(BlueprintAssignable)
+	FBroadcastJoinGameSessionMessage BroadcastJoinGameSessionMessage;
+
+	void JoinGameSession();
 };
diff --git a/Source/DedicatedServers/Public/UI/Portal/Signin/SignInOverlay.h b/Source/DedicatedServers/Public/UI/Portal/Signin/SignInOverlay.h
index b162cece..6d465d6a 100644
--- a/Source/DedicatedServers/Public/UI/Portal/Signin/SignInOverlay.h
+++ b/Source/DedicatedServers/Public/UI/Portal/Signin/SignInOverlay.h
@@ -34,4 +34,10 @@ private:
 	
 	UPROPERTY()
 	TObjectPtr<UPortalManager> PortalManager;
+	
+	UFUNCTION()
+	void OnJoinGameButtonClicked();
+	
+	UFUNCTION()
+	void UpdateJoinGameStatusMessage(const FString& StatusMessage);
 };