Latest C++ topics - Epic Developer Community Forums

Topic	Replies	Views	Activity
Warning C4828 UE4-17 , question , CPP , unreal-engine , warning	10	17952	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	243	March 31, 2026
Updated versions from 5.5.4 to 5.7.4, and SetSkeletalMesh in C++ no longer works past BeginPlay Blueprint , question , CPP , unreal-engine	0	13	March 30, 2026
PackagingResults: Error: Unknown Error packaging-projects , unreal-engine , package-project , package-error , Packaging	3	41	March 30, 2026
Physics constraint lock in place not working question , CPP , unreal-engine	0	11	March 30, 2026
Unreal 4 VS Build Project Error question , unreal-engine	1	33	March 29, 2026
When is Epic games making an update for Nintendo switch 2, 120 fps dock mode Blueprint , question , unreal-engine , fortnite	0	24	March 27, 2026
EOS header Signing in issue question , unreal-engine	1	23	March 27, 2026
Dynamic Collision Component Error question , editor , CPP , unreal-engine	1	53	March 26, 2026
Help with what's causing the engine to crash question , crashes , unreal-engine	8	105	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	42	March 25, 2026
UE5.3.2 Touch Input Action Bug? Android , question , bug-report , unreal-engine	5	1114	March 23, 2026
Behavior Tree MoveTo not working unreal-engine	18	6743	March 23, 2026
How to build a plugin to use in a pure Blueprint project ? Blueprint , CPP , unreal-engine	1	106	March 23, 2026
Unreal Engine 4.25 source code compile error unreal-engine , Engine-Source-Code	6	3533	March 21, 2026
Common UI Input ignores Arrow Keys question , unreal-engine	1	24	March 20, 2026
Using the UE5.4 built-in Libcurl.lib in a plugin (w/ no unresolved external references) CPP , unreal-engine	1	232	March 19, 2026
How to actual learn Unreal Engine question , unreal-engine	2	58	March 19, 2026
"Checking for localized variants" Freeze When Moving Folders in Source-Built Engine question , CPP , unreal-engine	1	45	March 19, 2026
GBGridManager.cpp(94, 16): [C2039] 'GetObjectW': is not a member of 'TScriptInterface<IGridOccupantInterface>' question , unreal-engine	3	53	March 18, 2026
UCLASS(Config=MyNewConfigFile) doesn't seems to work for me. question , unreal-engine , config	0	31	March 17, 2026
Super isn't a class or namespace name unreal-engine	5	2575	March 17, 2026
Import and play animated old game Model unreal-engine	0	10	March 16, 2026
Can't add C++ components to Blueprints directly anymore in 4.18 unreal-engine	8	5151	March 16, 2026
Check if the player has overlap an actor without creating dependencies question , unreal-engine	9	71	March 13, 2026
MetaHuman Plugin not working after switching to Unreal Engine Source CPP , bug-report , Plugins , Engine-Source-GitHub	14	752	March 13, 2026
Replace Blueprint Enum and Struct with C++ unreal-engine	12	4990	March 13, 2026
vs2022 integration tool error question , unreal-engine	4	904	March 12, 2026
Ability activation tags empty on client question , Multiplayer , unreal-engine , Gameplay-Ability-System	2	44	March 11, 2026
State tree bug bug-report , unreal-engine	4	558	March 11, 2026

Warning C4828

10

17952

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

243

March 31, 2026

Updated versions from 5.5.4 to 5.7.4, and SetSkeletalMesh in C++ no longer works past BeginPlay

Blueprint , question , CPP , unreal-engine

0

13

March 30, 2026

PackagingResults: Error: Unknown Error

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