Latest C++ topics - Epic Developer Community Forums

Topic	Replies	Views	Activity
Warning C4828 UE4-17 , question , CPP , unreal-engine , warning	10	18302	March 31, 2026
如何绘制大量的线，我尝试了用PDI->drawline的方式绘制，会特别的卡，有没有什么更好的优化方案？ question , CPP , Rendering , c-class-wizard , unreal-engine , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri	1	258	March 31, 2026
PackagingResults: Error: Unknown Error packaging-projects , unreal-engine , package-project , package-error , Packaging	3	122	March 30, 2026
Physics constraint lock in place not working question , CPP , unreal-engine	0	50	March 30, 2026
Unreal 4 VS Build Project Error question , unreal-engine	1	205	March 29, 2026
When is Epic games making an update for Nintendo switch 2, 120 fps dock mode Blueprint , question , unreal-engine , fortnite	0	61	March 27, 2026
EOS header Signing in issue question , unreal-engine	1	57	March 27, 2026
Dynamic Collision Component Error question , editor , CPP , unreal-engine	1	184	March 26, 2026
Help with what's causing the engine to crash question , crashes , unreal-engine	8	214	March 26, 2026
I use the same call to CreateWidget() in two classes, one works, one doesn't, how is that possible? Blueprint , question , CPP , unreal-engine , inheritance , Widget , UMG	2	88	March 25, 2026
UE5.3.2 Touch Input Action Bug? Android , question , bug-report , unreal-engine	5	1204	March 23, 2026
Behavior Tree MoveTo not working unreal-engine	18	6918	March 23, 2026
Unreal Engine 4.25 source code compile error unreal-engine , Engine-Source-Code	6	3750	March 21, 2026
Using the UE5.4 built-in Libcurl.lib in a plugin (w/ no unresolved external references) CPP , unreal-engine	1	288	March 19, 2026
How to actual learn Unreal Engine question , unreal-engine	2	130	March 19, 2026
"Checking for localized variants" Freeze When Moving Folders in Source-Built Engine question , CPP , unreal-engine	1	136	March 19, 2026
GBGridManager.cpp(94, 16): [C2039] 'GetObjectW': is not a member of 'TScriptInterface<IGridOccupantInterface>' question , unreal-engine	3	105	March 18, 2026
UCLASS(Config=MyNewConfigFile) doesn't seems to work for me. question , unreal-engine , config	0	72	March 17, 2026
Super isn't a class or namespace name unreal-engine	5	2656	March 17, 2026
Import and play animated old game Model unreal-engine	0	29	March 16, 2026
Can't add C++ components to Blueprints directly anymore in 4.18 unreal-engine	8	5221	March 16, 2026
Check if the player has overlap an actor without creating dependencies question , unreal-engine	9	167	March 13, 2026
MetaHuman Plugin not working after switching to Unreal Engine Source CPP , bug-report , Plugins , Engine-Source-GitHub	14	986	March 13, 2026
vs2022 integration tool error question , unreal-engine	4	1135	March 12, 2026
Ability activation tags empty on client question , Multiplayer , unreal-engine , Gameplay-Ability-System	2	169	March 11, 2026
State tree bug bug-report , unreal-engine	4	650	March 11, 2026
Spring arm rotates when it isn't intended. question , CPP , unreal-engine , spring-arm	1	102	March 11, 2026
Metahuman runtime lipsync caused crash in ue5.5 question , unreal-engine	1	131	March 10, 2026
Pig of a crash - "Pure virtual function being called while application was running" unreal-engine	51	19962	March 10, 2026
Get the navmesh vertice data question , CPP , unreal-engine	1	54	March 10, 2026

Warning C4828

10

18302

March 31, 2026

如何绘制大量的线，我尝试了用PDI->drawline的方式绘制，会特别的卡，有没有什么更好的优化方案？

question , CPP , Rendering , c-class-wizard , unreal-engine , c-custommeshcomponen , c-and-blueprint , c-custom-shape , c-cone-shape , c-programming , c-c , c-class , c-error , c-and-bluepri

1

258

March 31, 2026

PackagingResults: Error: Unknown Error

packaging-projects , unreal-engine , package-project , package-error , Packaging