Good day, guys.
I am trying to make a widget using c++ only. I have 2 classes, EnemyStatusClass and EnemyActor. Here are my screenshots.
As you can see in my EnemyStatusClass, I have a public variable, a float variable and a UProgressBar variable. I want to access these variables in the EnemyActor class. When I compile my code, there are no errors, but once I start playing it, it crashes and gives me this message.
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000400
UnrealEditor_Engine
eblade
February 28, 2023, 10:15am
2
Run it in the Debugger, and it will tell you where it crashed out at .
I don’t see anywhere that you are setting EnemyName or EnemyHealthBar, is that set in the Blueprints or something?
1 Like
In the last screenshot, line 23, I used the EnemyStatusClass->TryFloat to test things first, even with a normal float variable, the game crashes.
eblade
February 28, 2023, 5:14pm
4
Where are you setting EnemyStatusClass?
1 Like
Sorry. I did not understand your question. What do you mean setting?
Anilarion
March 1, 2023, 10:07am
6
Last screen, line 22 shouldn’t work. Functions “Get…Class” return static class. You shoud use
Cast<UEnemyStatusClass>(EnemyStatusWidget);
And always when you use pointers, check them with:
if(EnemyStatusClass)
Add it before UE_LOG and try again.
1 Like
Thank you so much for the help! Will update you once I implemented it on my code.
eblade
March 2, 2023, 4:14am
8
EnemyStatusClass has to be equal to something, you have to tell the code somewhere what value EnemyStatusClass is.
