C++ Loading Screen

Development Programming & Scripting C++
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1

Hello All!

I am new to the C++ side of Unreal and its API so forgive me if I seem dumb at all.

I have been following this on the Wiki to create a better Loading Screen: Loading Screen

After moving this into my project Game Instance I am getting the error: “Incomplete Type is not allowed” from

FLoadingScreenAttributes

from

struct MOVIEPLAYER_API FLoadingScreenAttributes

I am getting this error no matter where I put the code:

struct MOVIEPLAYER_API FLoadingScreenAttributes
{
Blah Blah Blah. Code from the Wiki page
};

Also, here I get the error “identifier GetMoviePlayer is undefined”

GetMoviePlayer()->SetupLoadingScreen(LoadingScreen);

After adding this include:

#include "..\MoviePlayer\Public\MoviePlayer.h"

This code:

"FLoadingScreenAttributes LoadingScreen;"

starts throwing the error

expected a ";" on LoadingScreen

Sorry if this is very messy. As I said; I don’t know much about the Unreal API. Feel free to answer any sections of this question.

I understand that this is designed for an older version of UE4 so it needs updating.

Thanks for any help.

2

Just out of curiosity, try this as your include
#include “Runtime/MoviePlayer/Public/MoviePlayer.h”

Also LoadingScreenAttributes LoadingScreen should possibly be FLoadingScreenAttributes LoadingScreen;

Im no master of c++ either so apologies if the above don’t help at all, just suggesting ideas.

3

Sadly that doesn’t work. Think I may have made a spelling error above. It was already “FLoadingScreenAttributes LoadingScreen;” in my code.

4

Go to your Build.cs file and add “MoviePlayer” to your PublicDependencyModuleNames.

Should look something like this when it’s done:

PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "HeadMountedDisplay", "MoviePlayer" });

then in your class where you’re using the movie player,

#include "Runtime/MoviePlayer/Public/MoviePlayer.h"
5

It is enough to include movie player like this

#include "MoviePlayer.h"

but in order to make it work you should add the public dependencies in your build.cs

My for example looks like so:

	PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore" , "UMG" , "AIModule", "RHI", "RenderCore" , "MoviePlayer" });

I think this is what you need so far
“MoviePlayer”

Also I know that the loading screen is also a slate based thingy so maybe you should also include a slate to the private dependencies:

PrivateDependencyModuleNames.AddRange(new string[] { "Slate", "SlateCore" });
6

I just ran into the same problem.
I got it to work by adding the movie player to PublicDependencyModuleNames as Xavice said and including the header
“Runtime/MoviePlayer/Public/MoviePlayer.h”

After that, you need to Regenerate your visual studio files by right clicking on your Unreal Engine Project File and hit “Generate Visual Studio Project Files”.