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Mouse wheel input not working in Axis Mapping?

The input from Mouse Wheel Up/Down doesn't seem to work at all in my PlayerController class. I made it so it constantly prints its value , and the Mouse Wheel Up/Down it's the only case which the input is not received. I tried to -Change the input to keyboard and it worked -Change the input to left/right mouse click and it worked -Have an Action Mapping that print a string everytime the Mouse Wheel is scrolled and it worked -My Mouse's wheel is not broken

here is the code with the different functions

 ARTSPlayerController::ARTSPlayerController()
 {
     bEnableClickEvents = true;
     bShowMouseCursor = true;
     bEnableTouchEvents = true;
 }
 
 void ARTSPlayerController::SetupInputComponent() {
     Super::SetupInputComponent();
     this->InputComponent->BindAction("Move", IE_Pressed,this, &ARTSPlayerController::Move);
     this->InputComponent->BindAxis("Wheel", this, &ARTSPlayerController::Wheel);
 
 }
 
 void ARTSPlayerController::Move() {
 
     if (GEngine) {
         GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, TEXT("found"));
     }
 }
 
 void ARTSPlayerController::Wheel(float Value) {
 
     if (GEngine) {
         GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, FString::Printf(TEXT("value: %f"),Value));
     }
 
 }


And it just prints 0.00000 even when i scroll up or down w

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asked Oct 26 '18 at 08:41 PM in C++ Programming

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Ale1221
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3 answers: sort voted first

I just found out that it's all working as intended : it's not possible to assign the mouse wheel scrolling action to a regular axis mapping as you would do with two different keys.

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answered Oct 30 '18 at 04:59 PM

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Ale1221
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Try this in the Input project settings

alt text

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answered Oct 27 '18 at 01:25 AM

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Ali Akbar
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avatar image eriksnoww Oct 30 '18 at 04:26 AM

I believe we want the Mouse Wheel Axis = 1.0 because of "when I scroll up or down" from the OP.

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The code is set up correctly, make sure you have your project settings updated.

Edit -> Project Settings -> Engine -> Input

  1. Add to Axis Mappings

  2. Name as "Wheel"

  3. Mouse Wheel Axis = 1.0

I just tested your code with this settings and it worked.

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answered Oct 30 '18 at 04:24 AM

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eriksnoww
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