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  3. FNullApplication

FNullApplication

An implementation of [GenericApplication](API\Runtime\ApplicationCore\GenericApplication) specifically for use when rendering off screen.

API > API/Runtime > API/Runtime/ApplicationCore

An implementation of GenericApplication specifically for use when rendering off screen. This application has no platform backing so instead keeps track of its associated NullWindows itself.

   
Name FNullApplication
Type class
Header File /Engine/Source/Runtime/ApplicationCore/Public/Null/NullApplication.h
Include Path #include "Null/NullApplication.h"

Syntax

class FNullApplication :  
    public GenericApplication ,  
    public FSelfRegisteringExec ,  
    public IInputInterface

Inheritance Hierarchy

Implements Interfaces

Constructors

Name Remarks Include Path Unreal Specifiers

FNullApplication()

   Null/NullApplication.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FNullApplication()

   Null/NullApplication.h  

Variables

Protected

Name Type Remarks Include Path Unreal Specifiers
bHasLoadedInputPlugins bool   Null/NullApplication.h  
bUsingHighPrecisionMouseInput bool Using high precision mouse input Null/NullApplication.h  
CurrentlyActiveWindow TSharedPtr< FNullWindow > Window that we think has been activated last. Null/NullApplication.h  
ExternalInputDevices TArray< TSharedPtr< class IInputDevice > > List of input devices implemented in external modules. Null/NullApplication.h  
PreviousActiveWindow TSharedPtr< FNullWindow > Window that we think has been previously active. Null/NullApplication.h  
Windows TArray< TSharedRef< FNullWindow > >   Null/NullApplication.h  
WorkArea FPlatformRect The virtual work area Null/NullApplication.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void ActivateWindow ( const TSharedPtr< FNullWindow >& Window
)

   Null/NullApplication.h  

void DestroyWindow ( TSharedRef< FNullWindow > WindowToRemove
)

   Null/NullApplication.h  

TSharedPtr< FNullWindow > FindWindowByPtr ( FGenericWindow* WindowToFind
)

   Null/NullApplication.h  

void SetWorkArea ( const FPlatformRect& NewWorkArea
)

   Null/NullApplication.h  

Overridden from GenericApplication

Name Remarks Include Path Unreal Specifiers

virtual void DestroyApplication()

   Null/NullApplication.h  

virtual void * GetCapture()

   Null/NullApplication.h  

virtual IInputInterface * GetInputInterface()

   Null/NullApplication.h  

virtual FModifierKeysState GetModifierKeys()

   Null/NullApplication.h  

virtual EWindowTransparency GetWindowTransparencySupport()

   Null/NullApplication.h  

virtual TSharedPtr< FGenericWindow > GetWindowUnderCursor()

   Null/NullApplication.h  

virtual FPlatformRect GetWorkArea ( const FPlatformRect& CurrentWindow
) const

   Null/NullApplication.h  

virtual void InitializeWindow ( const TSharedRef< FGenericWindow >& Window,
const TSharedRef< FGenericWindowDefinition >& InDefinition,
const TSharedPtr< FGenericWindow >& InParent,
const bool bShowImmediately
)

   Null/NullApplication.h  

virtual bool IsCursorDirectlyOverSlateWindow()

   Null/NullApplication.h  

virtual bool IsGamepadAttached()

   Null/NullApplication.h  

virtual bool IsMouseAttached()

   Null/NullApplication.h  

virtual bool IsUsingHighPrecisionMouseMode()

   Null/NullApplication.h  

virtual TSharedRef< FGenericWindow > MakeWindow()

   Null/NullApplication.h  

virtual void PollGameDeviceState ( const float TimeDelta
)

   Null/NullApplication.h  

virtual void ProcessDeferredEvents ( const float TimeDelta
)

   Null/NullApplication.h  

virtual void PumpMessages ( const float TimeDelta
)

   Null/NullApplication.h  

virtual void SetCapture ( const TSharedPtr< FGenericWindow >& InWindow
)

   Null/NullApplication.h  

virtual void SetHighPrecisionMouseMode ( const bool Enable,
const TSharedPtr< FGenericWindow >& InWindow
)

   Null/NullApplication.h  

virtual void SetMessageHandler ( const TSharedRef< class FGenericApplicationMessageHandler >& InMessageHandler
)

   Null/NullApplication.h  

Overridden from FExec

Name Remarks Include Path Unreal Specifiers

virtual bool Exec_Dev ( UWorld* InWorld,
const TCHAR* Cmd,
FOutputDevice& Ar
)

 FSelfRegisteringExec. Null/NullApplication.h  

Overridden from IInputInterface

Name Remarks Include Path Unreal Specifiers

virtual void ResetLightColor ( int32 ControllerId
)

 Resets the light color for the given controller. Ignored if controller does not support a color. Null/NullApplication.h  

virtual void SetForceFeedbackChannelValue ( int32 ControllerId,
FForceFeedbackChannelType ChannelType,
float Value
)

 Sets the strength/speed of the given channel for the given controller id. Null/NullApplication.h  

virtual void SetForceFeedbackChannelValues ( int32 ControllerId,
const FForceFeedbackValues& Values
)

 Sets the strength/speed of all the channels for the given controller id. Null/NullApplication.h  

virtual void SetHapticFeedbackValues ( int32 ControllerId,
int32 Hand,
const FHapticFeedbackValues& Values
)

 Sets the frequency and amplitude of haptic feedback channels for a given controller id. Null/NullApplication.h  

virtual void SetLightColor ( int32 ControllerId,
FColor Color
)

 Sets the light color for the given controller. Ignored if controller does not support a color. Null/NullApplication.h  

Static

Name Remarks Include Path Unreal Specifiers

static FNullApplication * CreateNullApplication()

   Null/NullApplication.h  

static void DestroyWindow ( FGenericWindow* Window
)

   Null/NullApplication.h  

static void GetFullscreenInfo ( int32& X,
int32& Y,
int32& Width,
int32& Height
)

   Null/NullApplication.h  

static void HideWindow ( FGenericWindow* Window
)

   Null/NullApplication.h  

static void MoveWindowTo ( FGenericWindow* Window,
const int32 X,
const int32 Y
)

   Null/NullApplication.h  

static void OnSizeChanged ( FGenericWindow* Window,
const int32 Width,
const int32 Height
)

   Null/NullApplication.h  

static void ShowWindow ( FGenericWindow* Window
)

   Null/NullApplication.h  

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