UE4截屏

UWorld中的自定义屏幕截图功能：CutBox支持

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已于 2024-04-24 18:34:49 修改 · 256 阅读

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#ue4

于 2024-04-24 18:31:35 首次发布

如果指定了 CutBox，就截取屏幕上一小块，如果没有指定CutBox，就截取整屏。

// 截屏。
bool ScreenShots(UWorld* pWorld, const FBox2D* CutBox/*= nullptr*/)
{
	if (pWorld == NULL)
	{
		return false;
	}

	UGameViewportClient* pViewport = Cast<UGameViewportClient>(
		pWorld ? pWorld->GetGameViewport() : GEngine->GameViewport);
	if (pViewport == NULL)
	{
		return false;
	}

	FVector2D vSize = FVector2D::ZeroVector;
	pViewport->GetViewportSize(vSize);

	TArray<FColor> Bitmap;
	bool bScreenshotSuccessful = false;
	TSharedPtr<SWindow> WindowPtr = pViewport->GetWindow();
	if (FSlateApplication::IsInitialized())
	{
		TSharedRef<SWidget> WindowRef = WindowPtr.ToSharedRef();
		FIntVector IntVector = FIntVector(vSize.X, vSize.Y, 0);
		bScreenshotSuccessful = FSlateApplication::Get().TakeScreenshot(
			WindowRef, Bitmap, IntVector);
	}
	for (FColor& Color : Bitmap)
	{
		Color.A = 255;
	}

	TArray<FColor>* RealMap = &Bitmap;
	bool bNeedCut =